FOR MORE INFORMATION CALL CLARK ROLLER CHAIN SPROCKETS INDEX...E-1 - E-2 MADE-TO-ORDER CAPABILITIES...

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1 Index SECTION E ROLLER CHAIN PRODUCT PAGE INDEX...E- - E-2 MADE-TO-ORDER CAPABILITIES...E- SECTION I STANDARD...E-4 - E-2 Shear Pin Sprockets, Bolt-On...E-4 - E-6 Type D Sprockets, Detachable s Split and Solid...E-7 Instant Split Sprockets...E-8 Torque Limiter...E-9 - E-0 Double Pitch Sprockets...E- - E- Double Single Sprockets...(See Pitch Below) Sprockets, Stock...E-6 - E-2 No. 2 4 pitch...e-6 - E-7 No. pitch...e-8 - E-26 No. 4 2 pitch...e-27 - E-29 No pitch...e-0 - E-42 No. 0 pitch...e-4 - E- No pitch...e-6 - E-68 No. 80 pitch...e-69 - E-8 No pitch...e-82 - E-9 No pitch...e-92 - E-97 No pitch...e-98- E-02 No pitch...e-0 - E-07 No pitch...e-08 No pitch...e-09 - E- No. 240 pitch...e-2 SECTION II METRIC...E- - E- ISO - 06B-, Metric in. (9.2mm) Pitch, Simplex...E-4 E- ISO - 06B-2, Metric in. (9.2mm) Pitch, Duplex...E-6 E-7 ISO - 06B-, Metric in. (9.2mm) Pitch, Triplex...E-8 ISO - 08B-, Metric in. (2.70mm) Pitch, Simplex...E-9 E-20 ISO - 08B-2, Metric in. (2.70mm) Pitch, Duplex...E-2 E22 ISO - 08B-, Metric in. (2.70mm) Pitch, Triplex...E-2 ISO - 0B-, Metric in. (.88mm) Pitch, Simplex...E-24 E-2 ISO - 0B-2, Metric in. (.88mm) Pitch, Duplex...E-26 E-27 ISO - 0B-, Metric in. (.88mm) Pitch, Triplex...E-28 ISO - 2B-, Metric in. (9.0mm) Pitch, Simplex...E-29 E-0 ISO - 2B-2, Metric in. (9.0mm) Pitch, Duplex...E- E-2 ISO - 2B-, Metric in. (9.0mm) Pitch, Triplex...E- ISO - 6B-, Metric in. (2.40mm) Pitch, Simplex...E-4 E- E-

2 Index SECTION E ROLLER CHAIN PRODUCT PAGE SECTION II METRIC (continued) ISO - 6B-2, Metric in. (2.40mm) Pitch, Duplex...E-6 E-7 ISO - 6B-, Metric in. (2.40mm) Pitch, Triplex...E-8 ISO - 20B-, Metric in. (.7mm) Pitch, Simplex...E-9 E-40 ISO - 20B-2, Metric in. (.7mm) Pitch, Duplex...E-4 ISO - 20B-, Metric in. (.7mm) Pitch, Triplex...E-42 ISO - 24B-, Metric in. (8.0mm) Pitch, Simplex...E-4 E-44 ISO - 24B-2, Metric in. (8.0mm) Pitch, Duplex...E-4 ISO - 28B-, Metric in. (44.4mm) Pitch, Simplex...E-46 E-47 ISO - 28B-2, Metric in. (44.4mm) Pitch, Duplex...E-48 ISO - 2B-, Metric in. (0.80mm) Pitch, Simplex...E-49 E-0 ISO - 2B-2, Metric in. (0.80mm) Pitch, Simplex...E- SECTION III ENGINEERING...E-2 E-92 Sprocket Nomenclature...E- E- Roller Chain Dimensions...E-6 Sprocket Tooth Dimensions...E-7 Maximum Bore and Size...E-8 E-9 Sprocket Selection...E-60 E-6 Sprocket Engineering...E-64 E-66 Hardening...E-67 Chain Drive Engineering...E-68 E-69 Roller Chain Lengths...E-69 Speed Ratios...E-70 Sprocket Diameters...E-7 E-8 Horsepower Ratings...E-84 E-92 E-2

3 Made-to-Order Sprockets Multi-Strand Oil Field Triple 60 Sprocket with Clutch Jaws Shaft Sprocket Quadruple 60 Triple 200 Double 200 Sprocket Sprocket Sprocket and Pinion Large Triple Strand Sprocket with Standard RC Sprocket Sprocket with Mounting Flange Mud Relief with Spline Bore Special Dryer Sprocket Special Plastic Sprocket Block Chain Martin manufactures numerous Made-To-Order (MTO) sprockets. If you do not see the sprocket you need in this section, call us. Chances are if chain runs on it, we have made the sprocket before. Special materials, special bores, duplex, triplex, double-single-doubles, etc. are all familiar to Martin. E-

4 Bolt-On Shear Pin Sprockets Shear Pin sprockets provide simple, dependable protection against expensive machinery damage caused by overloads or jamming. Torque is transmitted by a single pin, necked to shear when the safe load is exceeded. When an overload occurs, the pin shears, disconnecting the drive immediately. The Bolt-on Shear Pin Adapter converts any plate sprocket into a stock Shear Pin sprocket allowing immediate delivery of stock Shear Pin sprockets. Selection guide on page E-6 gives complete procedure to select the proper Shear Pin assembly. Stock Shear Pin Assemblies Shear Pin Shear Pin Shear Pin Adapter Assembly Bore Catalog Catalog Number Range Number Number SP-7 & UNDER SPH-7 SPA-7 SP SPH-8 SPA-8 SP SPH-9 SPA-9 SP SPH-20 SPA-20 SP SPH-2 SPA-2 SP SPH-22 SPA-22 SP SPH-2 SPA-2 SP SPH-24 SPA-24 SP SPH-2 SPA-2 SP SPH-26 SPA-26 SP SPH-27 SPA-27 SP SPH-28 SPA-28 SP SPH-29 SPA-29 SP SPH-0 SPA-0 SP SPH- SPA- Notes on Pricing: Shear Pin List Price includes any finished bore within the stated range, standard keyway, setscrew, and hardened steel shear pin bushing. Shear Pin Adapter List Price includes the Shear Pin bushin and grease fitting. Complete Assembly List Price includes all components of the Shear Pin assembly as described above. Total list price of any Shear Pin sprocket is the complete assembly list price plus the list price of the desired plate sprocket (from tables of stock sprocket list prices). Replacement Sprockets should be priced as altered stock sprockets directly from List Price and Alteration Charge tables. Shear Pin Components may be ordered separately and will be treated as stock items when conforming to standard specifications and descriptions above. Pricing Examples:. Stock Shear Pin Sprocket To price a tooth shear pin sprocket for 60 chain (60SP) using SP-26 shear pin assembly with 7 6 bore, standard keyway and setscrew: SP-26 Assembly List Price... See List 60A List Price... Price Sheet Total List Price Shear Pin Adapter and Sprocket for Existing To price a Bolt-on shear pin adapter and sprocket to replace the sprocket part of existing 0SP40 using SP-9 hub: SPA-9 Adapter List Price... See List 0A40 List Price... Price Sheet Total List Price... Shear Pin Sprockets can also be furnished in other standard styles or made to customer s specifications. Price on application. It is important that the torque requirement for the selected hub be checked in the torque rating table on page E-6 and the neck diameter of Shear Pin be specified. E-4

5 Bolt-On Shear Pin Sprockets SHEAR PIN ADAPTER SHEAR PIN HUB B STEEL PLATE SPROCKET N SAFETY COLLAR HARDENED STEEL BUSHING R E C D F J K L H G M P Shear Pin Assembly Dimensions (Inches) Table I Shear Pin Diameters Length Thru Adapt. Bolts Weights (lbs.) Shear Shear Adapt. Shear Flange Flange Sprocket Pin Pin Pin & Sprocket Pin Thick- Thick- Seat Number Bolt Shear Shear Assembly Radius Flange Collar Seat Adapt. Collar ness ness Width & Size Circle Pin Pin Number R B C D E F G H M J K L N P Adapt. SP SP SP SP SP SP SP SP SP SP SP SP SP SP SP NOTE: Shear Pin Pin length equals 2 J dimension. Sprocket Sizes For Stock Shear Pin Assemblies Table II Minimum Number of Teeth for Single Sprockets Shear Pin Chain Number Assembly Bore Number Range SP-7 & UNDER SP SP SP SP SP SP SP SP SP SP SP SP SP SP E-

6 Bolt-On Shear Pin Sprockets Shear Pin Sprocket Selection. The shear pin assembly required is determined by the shaft size. Select the smallest shear pin assembly which will accommodate the required bore. Table on page E- contains the bore ranges and minimum sprocket sizes which allow chain clearance over the shear pin assembly flange. 2. Using one of the following formulas, compute the torque load the pin must transmit and find the value in the torque rating table below to obtain the proper shear pin neck diameter. T = HP x 6,000 x. or T = D x CP x. RPM 2 or T = Output of reducer x speed ratio of chain drive x. Where: T = Torque in pound inches HP = Horsepower at Sprocket RPM = Sprocket Speed D = Pitch Diameter of Sprocket CP = Chain pull in pounds. = Safety factor for starting load Example:. Determine the shear pin assembly and pin neck diameter to transmit 20 horsepower at 67 RPM with a 4 tooth, No. 00 sprocket on a 2 6 shaft. () Referring to Table I (page E-), shear pin assembly SP-2 is required for a 2 6 bore. The 4 tooth sprocket is well above the minimum size. (2) Torque and neck diameter: HP x 6,000 x. T = RPM T = 20 x 6,000 x. = 28,200 lb. in. 67 Referring to Table II (page E-) under SP-2, a pin necked to shows a torque rating of 29,80 lb. in., which exceeds the 28,200 lb. in. required. () Order: 00SP4, SP-2 assembly with 2 6 bore and pin neck diameter. Shear Pin Torque Ratings Shear TORQUE RATING POUND INCHES Pin Neck Shear Pin Number Diameter (inches) SP7 SP8 SP9 SP20 SP2 SP22 SP2 SP24 SP2 SP26 SP27 SP28 SP29 SP0 SP E-6

7 Solid and Split Detachable s Type D Sprockets Stock Detachable s Type D sprockets consist of a Type A plate sprocket bolted to a detachable hub. A solid or split plate sprocket may be assembled to a solid or split hub. When ordering a Type D sprocket, be sure to select a plate sprocket large enough to allow chain clearance over the hub flange diameter, dimension D. Bolt holes of Type D hubs are drilled for interchangeability. Speed ratios may be changed simply by removing the plate sprocket and substituting another with a different number of teeth. When worn, the sprocket may be reversed to use the unworn tooth surfaces, increasing the life of the sprocket. Split s-cast Iron Dimensions (Inches) Bore Range A Bolt Flange Bolt Holes Diameter Circle Diameter Wt. Number Stock *Maximum B C D Number Bolt Size E F L Lbs. 02S S S S S S S S *Maximum bores shown are maximum bores with standard keyseat and setscrew. To obtain the price of a complete Type D sprocket, add the list price of hub, plus alteration charges and the list price of the desired Type A plate sprocket, including rebore, bolt hole drilling, and splitting charge if desired. These hubs may also be used with Accu-Torch Sprockets. A B C D E F L G Alteration Charges See current discount sheet for alteration charges. Solid s-steel Dimensions (Inches) Bore Range A Bolt Flange Bolt Holes Diameter Circle Diameter Wt. Number Stock *Maximum B C D Number Bolt Size E F G L Lbs *Maximum bores shown are maximum bores with standard keyseat and setscrew. E-7

8 All Steel Instant Split Sprocket Manufactured from stock plate sprockets, Martin s Instant Split-Sprocket offers unlimited design and is simply installed with a hand wrench... greatly reducing costly downtime. Single-Style B and C Steel-Instant Split-Sprocket * Wt. Number Bore O.D. Length Bolts Lbs. S S S S S S S S *Add hub length to plate thickness to determine length thru bore. For style C, add hub length 2. TOTAL LIST PRICE OF Martin SPLIT-SPROCKET IS SIMPLY THE HUB PRICE PLUS THE PLATE PRICE. O.D. Bore PRICING EXAMPLE STYLE B 20B4 Split with S-, 2 6 Bore, KW & SS Bore O.D. PRICING EXAMPLE STYLE C 20C4 Split with S- s, 2 6 Bore, KW & SS S- 20A4 Plate Two S- s 20A4 Plate length SEE HUB LIST + SEE PLATE LIST TOTAL LIST PRICE length SEE HUB LIST + SEE PLATE LIST TOTAL LIST PRICE Sprocket Size For Instant Split s Minimum Number of Teeth for Single Sprockets Instant Split s are for use with plate sprockets only. For multiple strand split sprockets, consult Martin. Split Chain Number No. Bore S S S S S S S S E-8

9 Torque-Limiter Clutches Martin TORQUE-LIMITER clutch offers thrifty overload protection that s easy to adjust. Here is low cost protection for your machinery... a torque limiting clutch that is easy to install. Torque-Limiter clutches feature an exclusive Easy-Set Adjustment. With Easy-Set, torque adjustment is accomplished quickly! The need for hammer and block, brute strength, and spanner wrenches is eliminated. These simple steps and the job is done:. Snug up the adjusting nut, finger tight, locate set screw over nearest spline notch, and tighten. See table at right. 2. Tighten three cap screws until heads bottom with a small wrench; this gives maximum torque.. For less torque back off the cap screws, loosen the set screw, back off adjusting nut to one of the six spline notches as required, and retighten set screw and cap screws. Easy-Set Adjustment not only simplifies installation, it provides solid support for pressure plates by compression at their peripheries. The Torque-Limiter clutch gives machinery permanent protection against overloads during starting, reversing, or driving by slipping at any desired load. It resumes driving without resetting when the overload is relieved. It is simple in design, compact, efficient, and built for long life. It provides low cost torque limiting service for a wide variety of applications. No lubrication... minimum maintenance. Starting shock from electric motors is a major cause of maintenance of moving parts. Torque-Limiter clutches provide a cushion by slipping until the torque drops to a preset level. They can be set to reduce shock loads on motors and driven equipment during reversing or inching. They provide mechanical protection against breakage due to sudden overload by slipping when the pre-set torque limit is reached. TORQUE (lb.-ins.) Torque-Limiter clutches may be used with a sprocket, gear, sheave, flange, or other driven member. It is recommended that the rubbing sides of the driven member be ground to provide a smooth rubbing surface of 6 to 2 micro-inches. See torque rating table on following page. The driven member is mounted on an oil-impregnated bushing and clamped between two, high quality friction discs by spring pressure. Each Torque-Limiter unit, completely assembled, contains one spring. Higher torque ratings can be obtained by the use of a second spring nested within the original spring. See rating table on following page. When an overload occurs, the driven member slips between long-life, clutch-type friction discs. After slipping has started, it will continue at approximately 90% of the torque setting, due to the lower coefficient of friction when slipping, until the overload condition has been corrected. TORQUE-LIMITER CLUTCH CALIBRATION Torque Rating One Spring Two Springs Size Min. Max. Min. Max. # # # # SPLINES Note: Graph indicates approximate rated torque vs number of splines adjusting nut is backed off from finger tight. E-9

10 Torque-Limiter Clutches Torque-Limiter Clutch Ratings TORQUE-LIMITER CLUTCHES Each assembled unit contains one spring. Higher ratings can be obtained by ordering a second spring to nest in the original one. Bushings need to be ordered separately, if required. The rubbing sides of the center member should be ground parallel 6 to 2 micro-inches. Torque Rating C K L (Pound-Inches) With One With Two Size Avg. Spring Springs** G Spline Spkt. No. Wt. Min. Max. Min. Max A B Min. Max. D E H J O. D. Bore TT /.628 TT /2.00 TT /.00 TT /4.94 Using a center member with rubbing sides ground parallel 6 to 2 micro-inches. Center member must be clean and free from oil, rust, etc. ** Second spring may be nested in one originally furnished. Order if required. Stock Bores Torque Limiters (No KW -SS ) Size Stock Max. Bore No. Bore Std. KW* Shallow KW* TT2 2 7 TT TT0 4 2 TT Additional SS See List Price Alterations * KW To Be Cut Central w/threaded Spline B G E C E D J L K for maximum torque setting. For minimum torque setting, add for No. 2; for No. ; 2 for Nos. 0 and 70. When two springs are used this dimension is increased approximately 6 on Nos. 2, and 0 2 on No. 70. Standard Keyways Torque- Torque- Limiter Limiter Bore Keyway Bore Keyway A Stock Plate Sprockets with Ground Face and Bored to Fit the Martin Torque Limiter UNIT TT2 Sprocket Size TTA2-2 TTA TTA TTA TTA TTA TTA0-2 0TTA7-2 0TTA2-2 0TTA22-2 UNIT TT0 Sprocket Size 40TTA-0 0TTA0-0 0TTA2-0 60TTA2-0 60TTA TTA TTA0-0 80TTA TTA TTA24-0 UNIT TT Sprocket Size TTA- TTA40-40TTA28-40TTA0-40TTA2-0TTA22-0TTA24-0TTA2-0TTA26-60TTA8-60TTA20- UNIT TT70 Sprocket Size 60TTA TTA TTA TTA TTA TTA TTA24-70 Bored to Size Torque Limiters w/std. KW & -SS Size No. Finished Bores TT TT 7 4 TT TT KW Same as Std. Listed in Tables Above. Additional S.S. See List Price Unit Min. Allowable Sprocket Teeth and Length of Bushing Req d for Chain Number Size Sprocket Pitch STK TT2 Min. Teeth MTO Bush. Lght. Req d STK TT Min. Teeth MTO Bush. Lght. Req d STK TT0 Min. Teeth MTO Bush. Lght. Req d STK TT70 Min. Teeth MTO Bush. Lght. Req d Min. number of teeth on sprocket stocked by Martin which can be used w/torque-limiter clutch. Min. number of teeth on made-to-order sprocket which will permit chain to clear friction disc. * Use one long bushing and one 2 long. Use two 2 long bushings. SPARE PARTS TT2 TT0 TT TT70 QTY. REQ.* PRESSURE PLATE 2 FRICTION DISC 2 ADJ. NUT ASSY. & S.S. ADJ. TENSION NUT HUB * PER UNIT E-0

11 Double Pitch All Steel Stock Sprockets Standard Roller Double Duty Carrier Roller Double-Pitch Sprockets Double Pitch Single Duty Standard Rollers Made-To-Order Carrier Rollers Series C-2000 chains have rollers of the same diameters and widths as American Standard Roller Chains of one half the conveyor chain pitch. Engaged by every other tooth, double duty sprockets have two teeth per chain pitch. During each revolution only half the teeth function effectively. Sprockets with odd numbers of teeth will allow any given tooth to engage only on every other revoution, automatically increasing sprocket life. Double duty sprockets with even number of teeth may be manually advanced one tooth periodically to increase sprocket life. Martin Stock C-2000 series sprockets are furnished double duty only. Sprockets for the C-2002 series chain with carrier rollers are cut with space cutters or standard hobs for the American Standard roller Chain of the same diameter. Each sprocket tooth meshes with these chains. Double-duty sprockets cannot be made for double pitch chain with Carrier Rollers. NOTE: For drives of teeth or more we recommend using Standard sprockets with series C-2000 chains. All altered double pitch sprockets requiring a keyway will be furnished with keyway on center line of tooth, unless otherwise specified. E-

12 Double Pitch All Steel Stock Sprockets -Inch Double-Pitch Conveyor or Drive Series Standard Roller Double Pitch 2040/C2040 No. Teeth Bore Wt. Actual Eff. No. Outside Pitch Catalog Rec. Length Lbs. Teeth Diameter Diameter Number Type Stock Max. Diameter Thru (Approx.) B B B2 B B B B4 B B B B6 B B7 B B8 B B9 B B20 B B2 B B22 B B2 B B24 B B2 B B26 B B28 B B0 B Has recessed groove in hub for chain clearance..284 O.D. TYPE A Conveyor Series Carrier Roller Double Pitch 2042/C2042 No. Teeth Bore Wt. Wt. Actual Outside Pitch Catalog Rec. Length Lbs. Catalog Stock Lbs. Diameter Diameter Number Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) B8 B B9 B B0 B B B B2 B B B B4 B B B B6 B A 2042A B7 B A 2042A B8 B A 2042A B9 B A 2042A B20 B A 2042A B2 B A 2042A B22 B A 2042A B2 B A 2042A B24 B A 2042A B2 B A 2042A B26 B A 2042A B28 B A 2042A B0 B A 2042A Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. O.D. Length Thru.284. TYPE B E-2

13 Double Pitch All Steel Stock Sprockets 4-Inch Double-Pitch.4 O.D. Conveyor or Drive Series Standard Roller Double Pitch 200/C200 No. Teeth Bore Wt. Wt. Actual Eff. No. Outside Pitch Catalog Rec. Length Lbs. Catalog Stock Lbs. Teeth Diameter Diameter Number Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) B B B2 B B B B4 B B B B6 B B7 B B8 B B9 B B20 B B2 B B22 B B2 B B24 B A 200A B2 B A 200A B26 B A 200A B28 B A 200A B0 B A 200A Has recessed groove in hub for chain clearance. TYPE A O.D. Length Thru.4 TYPE B. Conveyor Series Carrier Roller Double Pitch 202/C202 No. Teeth Bore Wt. Wt. Actual Outside Pitch Catalog Rec. Length Lbs. Catalog Stock Lbs. Diameter Diameter Number Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) B8 B B9 B B0 B B B B2 B A 202A B B A 202A B4 B A 202A B B A 202A B6 B A 202A B7 B A 202A B8 B A 202A B9 B A 202A B20 B A 202A B2 B A 202A B22 B A 202A B2 B A 202A B24 B A 202A B2 B A 202A B26 B A 202A B28 B A 202A B0 B A 202A Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-

14 Double Pitch All Steel Stock Sprockets 2-Inch Double-Pitch Conveyor Series Standard Roller Double Pitch 2060/C2060 No. Teeth Bore Wt. Wt. Actual Eff. No. Outside Pitch Catalog Rec. Length Lbs. Catalog Stock Lbs. Teeth Diameter Diameter Number Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) B B B2 B B B B4 B B B B6 B B7 B B8 B B9 B B20 B B2 B B22 B B2 B B24 B A 2060A B2 B A 2060A B26 B A 2060A B28 B A 2060A B0 B A 2060A Has recessed groove in hub for chain clearance..49 O.D. TYPE A Conveyor Series Carrier Roller Double Pitch 2062/C2062 No. Teeth Bore Wt. Wt. Actual Outside Pitch Catalog Rec. Length Lbs. Catalog Stock Lbs. Diameter Diameter Number Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) B8 B B9 B B0 B B B B2 B A 2062A B B A 2062A B4 B A 2062A B B A 2062A B6 B A 2062A B7 B A 2062A B8 B A 2062A B9 B A 2062A B20 B A 2062A B2 B A 2062A B22 B A 2062A B2 B A 2062A B24 B A 2062A B2 B A 2062A B26 B A 2062A B28 B A 2062A B0 B A 2062A Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. O.D. Length Thru.49 TYPE B E-4

15 Double Pitch All Steel Stock Sprockets 2-Inch Double-Pitch.7 O.D. Conveyor or Drive Series Standard Roller Double Pitch 2080/C2080 No. Teeth Bore Wt. Wt. Actual Eff. No. Outside Pitch Catalog Rec. Length Lbs. Catalog Stock Lbs. Teeth Diameter Diameter Number Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) B B B2 B B B B4 B B B B6 B B7 B A 2080A B8 B A 2080A B9 B A 2080A B20 B A 2080A B2 B A 2080A B22 B A 2080A B2 B A 2080A B24 B A 2080A B2 B A 2080A B26 B A 2080A B28 B A 2080A B0 B A 2080A Has recessed groove in hub for chain clearance. TYPE A O.D. Length Thru.7 TYPE B Conveyor Series Carrier Roller Double Pitch 2082/C2082 No. Teeth Bore Wt. Wt. Actual Outside Pitch Catalog Rec. Length Lbs. Catalog Stock Lbs. Diameter Diameter Number Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) B8 B B9 B B0 B B B A 2082A B2 B A 2082A B B A 2082A B4 B A 2082A B B A 2082A B6 B A 2082A B7 B A 2082A B8 B A 2082A B9 B A 2082A B20 B A 2082A B2 B A 2082A B22 B A 2082A B2 B A 2082A B24 B A 2082A B2 B A 2082A B26 B A 2082A B28 B A 2082A B0 B A 2082A Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-

16 No. 2 4 Pitch All Steel Stock Sprockets Single-Type B Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 9 2B9.87 B B0.99 B B.002 B B2.08 B B.67 B B4.246 B B.26 B B6.407 B B7.487 B B8.68 B A 2A B9.648 B A 2A B B A 2A B2.809 B A 2A B B A 2A B2.969 B A 2A B B 2. A 2A B B 2.4 A 2A B B 2. A 2A B B 2.6 A 2A B B 2.8 A 2A B B 2.40 A 2A A 2A.6 6 2B6.008 B A 2A B40.27 B A 2A A 2A B4.72 B A 2A B B A 2A B B A 2A B B A 2A B70.77 B B B A 2A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat..0 Alteration Charges See current discount sheet for alteration charges. O.D. Length Thru TYPE B E-6

17 Stainless Steel Stock Sprockets No. 2 4 Pitch Single-Type B Stainless Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) 9 2B9SS.87 B B0SS.99 B BSS.00 B B2SS.08 B BSS.64 B B4SS.24 B BSS.26 B B6SS.407 B B7SS.487 B B8SS.68 B B9SS.648 B B20SS.728 B B2SS.809 B B22SS.889 B B2SS.969 B B24SS B B2SS 2.29 B B26SS B B28SS 2.69 B B0SS 2.29 B B6SS.008 B B40SS.27 B B4SS.72 B B60SS B Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Sprockets altered at factory (rebored with key way and setscrew added) will be supplied with stainless setscrew..0 Alteration Charges See current discount sheet for alteration charges. O.D.. Length Thru TYPE B STAINLESS STEEL E-7

18 No. Pitch All Steel Stock Sprockets Single-Type BS 2 Setscrews Bored-To-Size Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and 2 Setscrews 9 BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS Indicates no keyway. 2 4 setscrews only in 2 & bore. Keyway with Setscrew at 90. diameters vary to suit different bore sizes. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH..68 Length Thru TYPE BS BORED-TO-SIZE E-8

19 All Steel Stock Sprockets No. Pitch.68 Length Thru TYPE BS BORED-TO-SIZE No. -Hardened Teeth 2 Setscrews Bored-To-Size Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and 2 Setscrews 9 BS9HT BS0HT BSHT BS2HT BSHT BS4HT BSHT BS6HT BS7HT BS8HT BS9HT BS20HT BS2HT BS22HT BS2HT BS24HT BS2HT BS26HT BS28HT BS0HT Indicates no keyway. (2) 4 setscrews only in 2 & bore at 90. Setscrews at 90 and 80 to key. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. Martin stock hardened teeth sprockets afford longer chain and sprocket life. Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 R.P.M. E-9

20 No. Pitch Stainless Steel Stock Sprockets Single-Type B Stainless Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 9 B9SS.260 B B0SS.80 B BSS.00 B B2SS.60 B BSS.70 B B4SS.870 B BSS.990 B B6SS 2.0 B B7SS 2.20 B B8SS 2.0 B B9SS B B20SS 2.90 B B2SS 2.70 B B22SS 2.80 B B2SS 2.90 B B24SS.070 B B2SS.90 B B26SS.0 B B28SS.0 B B0SS.790 B BSS 4.90 B B40SS B A A40SS B4SS.90 B A A4SS B60SS 7.80 B A A60SS Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Sprockets altered at factory (rebored with keyway and setscrew added) will be supplied with stainless setscrew. Alteration Charges See current discount sheet for alteration charges..68 O.D. Length Thru STAINLESS STEEL TYPE B E-20

21 All Steel Stock Sprockets No. Pitch Single-Type B Steel Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 8 B8.0 B B9.260 B B0.80 B B.00 B B2.60 B B.70 B B4.870 B B.990 B A A B6 2.0 B A A B B A A B8 2.0 B A A B B A A B B A A B B A A B B A A B B A A B B A A B2.90 B A A B26.0 B A A B27.40 B A A B28.0 B A A B0.790 B A A B B A A2.46 B 4.90 B A A.60 6 B6 4.0 B A A B B A A B42.20 B A A B4.90 B A A B48.90 B A A B B A A B B A A B B A A B B A A B B A A B B A A B B A A B2.90 B A A Has recessed groove in hub for chain clearance. Single-Type A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat Alteration Charges See current discount sheet for alteration charges. O.D. O.D. Length Thru TYPE A TYPE A TYPE B TYPE B E-2

22 No. Pitch All Steel Stock Sprockets Single-Taper Bushed.68 O.D. C L TYPE B Single-Taper Bushed Diameter Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 8 BTB B.4. 9 BTB B.. 20 BTB B.6. 2 BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B..9 BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B Has recessed groove in hub for chain clearance. E-22

23 All Steel Stock Sprockets No. Pitch Single-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. With Rim Teeth Number Bushing Diameter Diameter Type Bore L L 2 C Y G X T Only 9 JA9 JA B JA20 JA B JA2 JA B JA22 JA B JA2 JA B JA24 JA B JA2 JA B JA26 JA.0. B JA27 JA B JA28 JA.0.49 B JA0 JA B JA2 JA B JA JA B SH6 SH B SH40 SH B SH42 SH B SH4 SH B SH48 SH B SH4 SH B SH60 SH B SH70 SH B SH72 SH B SH80 SH B SH84 SH B SH96 SH B SH2 SH.90.7 B O.D. QD TYPE B E-2

24 No. Pitch MST Sprockets Single - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 9 H9 H /2 -/2 -/4 /6 2-/2 -/ H20 H /2 -/2 -/4 /6 2-/2 -/ H2 H /2 -/2 -/4 /6 2-/2 -/ H22 H /2 -/2 -/4 /6 2-/2 -/ H2 H /2 -/2 -/4 /6 2-/2 -/ H24 H /2 -/2 -/4 /6 2-/2 -/ H2 H /2 -/2 -/4 /6 2-/2 -/ H26 H.0. -/2 -/2 -/4 /6 2-/2 -/ H28 H /2 -/2 -/4 /6 2-/2 -/ H0 H /2 -/2 -/4 /6 2-/2 -/ H2 H /2 -/2 -/4 /6 2-/2 -/ H H /2 -/2 -/4 /6 2-/2 -/ H6 H /2 -/2 -/4 /6 2-/2 -/ H40 H /2 -/2 -/4 /6 2-/2 -/ H42 H /2 -/2 -/4 /6 2-/2 -/ H4 H /2 -/2 -/4 /6 2-/2 -/ H48 H /2 -/2 -/4 /6 2-/2 -/ H4 H /2 -/2 -/4 /6 2-/2 -/ H60 H /2 -/2 -/4 /6 2-/2 -/ H70 H /2 -/2 -/4 /6 2-/2 -/ H72 H /2 -/2 -/4 /6 2-/2 -/ H80 H /2 -/2 -/4 /6 2-/2 -/ H84 H /2 -/2 -/4 /6 2-/2 -/ H96 H /2 -/2 -/4 /6 2-/2 -/ H2 H /2 -/2 -/4 /6 2-/2 -/ E-24

25 All Steel Stock Sprockets No. -2 Pitch Double-Type B O.D..6 Length Thru TYPE B Double-Type QD.62 Double-Taper Bushed QD TYPE C Diameters Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 9 DBTB9H B DBTB20H B.8. 2 DBTB2H B DBTB22H B.7. 2 DBTB24H B DBTB B DBTB B DBTB B DBTB B DBTB B DBTB B DBTB B..9 4 DBTB B DBTB B DBTB B DBTB B DBTB B DBTB B Sprockets with H suffix have hardened teeth. Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P X T W Only 68 DSDS68 SDS C DSDS72 SDS C DSDS76 SDS C DSK84 SK C DSK9 SK C DSK96 SK C DSK02 SK C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 2 DB2H.60 B DBH.70 B DB4H.870 B DBH.990 B DB6H 2.0 B DB7H 2.20 B DB8H 2.0 B DB9H B DB20H 2.90 B DB2H 2.70 B DB22H 2.80 B DB2H 2.90 B DB24H.070 B DB2H.90 B DB26.0 B DB0.790 B DB6 4.0 B DB42.20 B DB48.90 B DB B DB B DB B DB B DB B DB B DB9.60 B DB B DB B Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Sprockets with H suffix have hardened teeth C TAPER BUSHED TYPE B L.62 E-2

26 No. - Pitch All Steel Stock Sprockets Triple-Type B Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) EBH.70 B EB4H.870 B EBH.990 B EB6H 2.0 B EB7H 2.20 B EB8H 2.0 B EB9H B EB20H 2.90 B EB2H 2.70 B EB22H 2.80 B EB2H 2.90 B EB24H.070 B EB2H.90 B EB26.0 B EB0.790 B EB6 4.0 B EB42.20 B EB48.90 B EB B EB B EB B EB B EB B EB B EB9.60 B EB B EB B Length Thru TYPE B.62 Alteration Charges See current discount sheet for alteration charges. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. NOTE: Triple stock sprockets with 2 teeth or less have hardened teeth. Sprockets with H suffix have hardened teeth. QD TYPE C Triple-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P X T W Only 68 ESK68 SK C ESK72 SK C ESK76 SK C ESK84 SK C ESK9 SK C ESK96 SK C ESK02 SK C E-26

27 All Steel Stock Sprockets No. 4 2 Pitch Single-Type BS 2 Setscrews Bored-To-Size Length Weight Stock Finished Bores No. Catalog Outside Thru Lbs. Includes Keyway Teeth Number Diameter Bore (Approx.) and 2 Setscrews 9 4BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS Indicates no keyway. (2) 4 Setscrews only in 2 bore. diameters vary to suit different bore sizes. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH..227 Length Thru BORED-TO-SIZE TYPE BS E-27

28 No. 4 2 Pitch All Steel Stock Sprockets Single-Type B Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 6 4B6.70 B B7.40 B B8.0 B B9.670 B B0.840 B B B B B B 2.0 B B B B 2.60 B A 4A B B A 4A B B A 4A B8.40 B 2.2 A 4A B9.00 B A 4A B B A 4A B2.620 B A 4A B B 2.9 A 4A B2.940 B A 4A B B A 4A B B A 4A B B A 4A B B A 4A B B A 4A B0.060 B A 4A B2.80 B A 4A B.860 B A 4A B B A 4A B B A 4A B B A 4A B B A 4A B B A 4A B B A 4A B B A 4A B70.40 B A 4A B72.70 B A 4A B80.00 B A 4A B B A 4A B96.70 B A 4A B B A 4A Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat O.D. O.D. Length Thru TYPE A TYPE B E-28

29 All Steel Stock Sprockets No. 4 2 Pitch Single-Taper Bushed Diameters Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 4 4BTB B.4. 4BTB B.. 6 4BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B.9.9 4BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B..9 Has recessed groove in hub for chain clearance..227 TAPER BUSHED TYPE B Single-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y G X T Only 4JA JA B JA6 JA B JA7 JA B JA8 JA B JA9 JA B SH20 SH B SH2 SH.620. B SH22 SH.780. B SH2 SH B SH24 SH B SH2 SH B SH26 SH B SH27 SH B SH28 SH B SH0 SH B SH2 SH.80.0 B SH SH B SDS6 SDS B SDS40 SDS B SDS42 SDS B SDS4 SDS B SDS48 SDS B SDS4 SDS B SDS60 SDS B SK70 SK.40.4 B SK72 SK B SK80 SK B SK84 SK B SK96 SK B SK2 SK B O.D. QD TYPE B E-29

30 No Pitch All Steel Stock Sprockets Single-Type BS 2 Setscrews Bored-To-Size Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and 2 Setscrews 9 40BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS Indicates no keyway. (2) 4 setscrews only. diameters vary to suit different bore sizes. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. BORED-TO-SIZE Length Thru TYPE BS.284 E-0

31 All Steel Stock Sprockets No Pitch.284 No. 40-Hardened Teeth 2 Setscrews Bored-To-Size Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and 2 Setscrews Length Thru TYPE BS 9 40BS9HT BS0HT BSHT BS2HT BSHT BS4HT BSHT BS6HT BS7HT BS8HT BS9HT BS20HT BS2HT BS22HT BS2HT BS24HT BS2HT BS26HT BS28HT BS0HT Indicates no keyway. (2) 4 setscrews only in 2 & bore at 90. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. Martin stock hardened teeth sprockets afford longer chain and sprocket life. Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 R.P.M. O.D. Length Thru TYPE C.284 Single-Type C Steel Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 2 40C C C C C C C Has recessed groove in hub for chain clearance. E-

32 No Pitch All Steel Stock Sprockets Double Single-Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS40A A DS40A A DS40A A DS40A A DS40A A DS40A A DS40A A DS40A A DS40A A DS40A A DS40A A TYPE A Double Single-Taper Bushed Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only 8 DS40ATB8H A DS40ATB9H A DS40ATB20H A DS40ATB2H A DS40ATB2H A DS40ATB24H A TAPER BUSH TYPE A Double Single - MST Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only 9 DS40H9H H BH DS40H2H H BH DS40P2H P B DS40P24H P B E-2 MST TYPE B

33 Stainless Steel Stock Sprockets No Pitch Single-Type B Stainless Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 0 40B0SS.840 B BSS B B2SS 2.70 B BSS 2. B B4SS B BSS 2.60 B B6SS 2.80 B B7SS B B8SS.40 B B9SS.00 B B20SS.460 B B2SS.620 B B22SS.780 B B2SS.940 B B24SS 4.00 B B2SS B B26SS B A 40A26SS B28SS B A 40A28SS B0SS.060 B A 40A0SS BSS.860 B A 40ASS B40SS 6.60 B A 40A40SS B4SS 7.40 B A 40A4SS B60SS B A 40A60SS Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Sprockets altered at factory (rebored with keyway and setscrew added) will be supplied with stainless setscrew. Alteration Charges.284 See current discount sheet for alteration charges. O.D. Length Thru STAINLESS STEEL TYPE B E-

34 No Pitch All Steel Stock Sprockets O.D..284 O.D..284 Length Thru TYPE B Alteration Charges See current discount sheet for alteration charges. TYPE A Single-Type B Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 8 40B8.0 B B9.670 B B0.840 B B B B B A 40A B 2.0 B A 40A B B A 40A B 2.60 B A 40A B B A 40A B B A 40A B8.40 B A 40A B9.00 B A 40A B B A 40A B2.620 B A 40A B B A 40A B2.940 B 2 2. A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B0.060 B A 40A B.220 B A 40A B2.80 B A 40A B.40 B A 40A B4.700 B A 40A B.860 B A 40A B B A 40A B B A 40A B8 6.0 B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B4 7.0 B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B 8.40 B A 40A B B A 40A B 8.70 B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B70.40 B A 40A B72.70 B A 40A B80.00 B A 40A B B A 40A B96.70 B A 40A B B A 40A Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-4

35 All Steel Stock Sprockets No Pitch Single-Type QD With Hardened Teeth No. Catalog S Teeth Number A B E R 40JAH 6 40JA6H 7 40JA7H 8 40JA8H 9 40JA9H 20 40SH20H 2 40SH2H 22 40SH22H 2 40SH2H 24 40SH24H 2 40SH2H 26 40SH26H 27 40SH27H 28 40SH28H 0 40SH0H T O O T H O.D. Single-Type QD QD TYPE B Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y G X T Only 40JA JA B JA6 JA B JA7 JA B JA8 JA B JA9 JA B SH20 SH B SH2 SH.620. B SH22 SH.780. B SH2 SH B SH24 SH B SH2 SH B SH26 SH B SH27 SH B SH28 SH B SH0 SH B SH2 SH.80.0 B SH SH B SDS6 SDS B SDS40 SDS B SDS42 SDS B SDS4 SDS B SDS48 SDS B SDS4 SDS B SDS60 SDS B SK70 SK.40.4 B SK72 SK B SK80 SK B SK84 SK B SK96 SK B SK2 SK B E-

36 No Pitch All Steel Stock Sprockets Single-Taper Bushed with Hardened Teeth O.D. L.284 C TAPER BUSHED TYPE B S A B E R T O O T H No. Teeth Catalog Number 4 40BTB4H 40BTBH 6 40BTB6H 7 40BTB7H 8 40BTB8H 9 40BTB9H 20 40BTB20H 2 40BTB2H 22 40BTB22H 2 40BTB2H 24 40BTB24H 2 40BTB2H 26 40BTB26H 28 40BTB28H 0 40BTB0H Single-Taper Bushed Diameters Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 4 40BTB B.. 40BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B Has recessed groove in hub for chain clearance. E-6

37 MST Sprockets No Pitch Single - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 40HH H /2 9/2 /4 /2 2 /2 / H6H H /2 9/2 /4 /2 2 /2 / H7H H /2 /2 /4 /6 2 /2 / H8H H /2 /2 /4 /6 2 /2 / P8H P /4 2 /6 /6 0 2/ H9H H /2 /2 /4 /6 2 /2 / P9H P /4 2 /6 /6 0 2/ H20H H /2 /2 /4 /6 2 /2 / P20H P /4 2 /6 /6 0 2/ H2H H.620. /2 /2 /4 /6 2 /2 / P2H P /4 2 /6 /6 0 2/ H22H H.780. /2 /2 /4 /6 2 /2 / P22H P /4 2 /6 /6 0 2/ H2H H /2 /2 /4 /6 2 /2 / P2H P /4 2 /6 /6 0 2/ H24H H /2 /2 /4 /6 2 /2 / P24H P /4 2 /6 /6 0 2/ H2H H /2 /2 /4 /6 2 /2 / P2H P /4 2 /6 /6 0 2/ H26H H /2 /2 /4 /6 2 /2 / P26H P /4 2 /6 /6 0 2/ H27H H /2 /2 /4 /6 2 /2 / H28H H /2 /2 /4 /6 2 /2 / P28H P /4 2 /6 /6 0 2/ P29H P /4 2 /6 /6 0 2/ H0H H /2 /2 /4 /6 2 /2 / P0H P /4 2 /6 /6 0 2/ P P /4 2 /6 /6 0 2/ H2H H.80.0 /2 /2 /4 /6 2 /2 / P2 P /4 2 /6 /6 0 2/ HH H /2 /2 /4 /6 2 /2 / P P /4 2 /6 /6 0 2/ P4 P /4 2 /6 /6 0 2/ HH H /2 /2 /4 /6 2 /2 / P P /4 2 /6 /6 0 2/ H6H H /2 /2 /4 /6 2 /2 / P6 P /4 2 /6 /6 0 2/ P7 P /4 2 /6 /6 0 2/ H8H H /2 /2 /4 /6 2 /2 / P8 P /4 2 /6 /6 0 2/ H40H H /2 /2 /4 /6 2 /2 / P40 P /4 2 /6 /6 0 2/ P4 P /4 2 /6 /6 0 2/ P42 P /4 2 /6 /6 0 2/ P44 P /4 2 /6 /6 0 2/ P4 P /4 2 /6 /6 0 2/ P47 P /4 2 /6 /6 0 2/ P48 P /4 2 /6 /6 0 2/ P0 P /4 2 /6 /6 0 2/ P4 P /4 2 /6 /6 0 2/ P6 P /4 2 /6 /6 0 2/ P60 P /4 2 /6 /6 0 2/ Q60 Q /6 2 2/2 2 /2 0 4 /8 2 7/ P70 P /4 2 /6 /6 0 2/ Q70 Q /6 2 2/2 2 /2 0 4 /8 2 7/ Q72 Q /6 2 2/2 2 /2 0 4 /8 2 7/ Q80 Q /6 2 2/2 2 /2 0 4 /8 2 7/ Q84 Q /6 2 2/2 2 /2 0 4 /8 2 7/ Q96 Q /6 2 2/2 2 /2 0 4 /8 2 7/ Q2 Q /6 2 2/2 2 /2 0 4 /8 2 7/ Sprockets with H suffix have hardened teeth. E-7

38 No Pitch All Steel Stock Sprockets Double-Type B Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) D40BH B D40B2H 2.70 B D40BH 2.0 B D40B4H B D40BH 2.60 B D40B6H 2.80 B D40B7H B D40B8H.40 B D40B9H.00 B D40B20H.460 B D40B2H.620 B D40B22H.780 B D40B2H.940 B D40B24H 4.00 B D40B2H B D40B B D40B0.060 B D40B.860 B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B68.20 B D40B72.70 B D40B B D40B B D40B9.40 B D40B96.70 B D40B B D40B B Has recessed groove in hub for chain clearance. O.D..84 Length Thru TYPE B.27 QD TYPE C Alteration Charges See current discount sheet for alteration charges. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. NOTE: Double 40 stock sprockets with 2 teeth or less have hardened teeth. As indicated by H suffix. Double-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P X T W Only 6 D40SK6 SK C D40SK40 SK C D40SK42 SK C D40SK4 SK C D40SK48 SK C D40SK2 SK C D40SK4 SK C D40SK60 SK C D40SF68 SF C D40SF72 SF C D40SF76 SF C D40SF84 SF C D40SF9 SF C D40SF02 SF C D40SF2 SF C E-8

39 All Steel Stock Sprockets No Pitch Nom Nom Nom. C C C L TYPE A L TYPE B L TYPE C Double-Taper Bushed Diameters Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only D40ATBH A.. 6 D40ATB6H A.6. 7 D40ATB7H A.7. 8 D40BTB8H B D40BTB9H B D40BTB20H B D40BTB2H B D40BTB2H B..9 2 D40BTB2H B D40BTB B D40BTB B D40CTB C D40CTB C D40CTB C D40CTB C D40CTB C D40CTB C D40CTB C.6. 9 D40CTB C D40CTB C 6.8. NOTE: Double 40 stock sprockets with 2 teeth or less have hardened teeth. As indicated by H suffix. E-9

40 No /2 Pitch MST Sprockets Double - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only D40HH H /2 2-/2 -/4 2/2 2-/2 -/ D40H6H H /2 2-/2 -/4 2/2 2-/2 -/ D40H7H H /2 2-/2 -/4 2/2 2-/2 -/ D40P8H P /4 /6 -/6 -/ D40P9H P /4 2 /2 -/6 9/2 -/ D40P20H P /4 2-/2 -/6 7/2 -/ D40P2H P /4 2-/2 -/6 7/2 -/ D40P22H P /4 2-/2 -/6 7/2 -/ D40P2H P /4 2-/6 -/6 0 -/ D40P24H P /4 2-/6 -/6 0 -/ D40P2H P /4 2-/6 -/6 0 -/ D40P26H P /4 2-/6 -/6 0 -/ D40P28H P /4 2-/6 -/6 0 -/ D40Q0H Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q2H Q /6 2-2/2 2-/2 0 4-/8-2/ D40QH Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q6H Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q40H Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q42H Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q4H Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q48H Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q2H Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q4H Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q60H Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q68 Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q72 Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q76 Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q84 Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q9 Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q96 Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q02 Q /6 2-2/2 2-/2 0 4-/8-2/ D40Q2 Q /6 2-2/2 2-/2 0 4-/8-2/ Sprockets with H suffix have hardened teeth. E-40

41 All Steel Stock Sprockets No Pitch Triple-Type B Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.).407 Length Thru TYPE B.27 QD TYPE B Alteration Charges See current discount sheet for alteration charges. E40BH B E40B2H 2.70 B E40BH 2.0 B E40B4H B E40BH 2.60 B E40B6H 2.80 B E40B7H B E40B8H.40 B E40B9H.00 B E40B20H.460 B E40B2H.620 B E40B22H.780 B E40B2H.940 B E40B24H 4.00 B E40B2H B E40B B E40B0.060 B E40B.860 B E40B B E40B B E40B B E40B B E40B B E40B68.20 B E40B72.70 B E40B B E40B B E40B9.40 B E40B B Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. NOTE: Triple 40 stock sprockets with 2 teeth or less have hardened teeth. As indicated by H suffix. Triple-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y X T W Only 6 E40SK6 SK B E40SK42 SK B E40SK48 SK B..6 2 E40SK2 SK B E40SK60 SK B E40SF68 SF B E40SF72 SF B E40SF76 SF B E40SF84 SF B E40SF9 SF B E40SF02 SF B E-4

42 No. 40- /2 Pitch MST Sprockets Triple - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 8 9 E40P8H E40P9H P P /4 -/4 -/4 /2 -/6 -/6 9/6 27/2 -/8 -/ E40P20H P /4 2 /2 -/6 2/2 -/ E40P2H P /4 2-9/2 -/6 /2 / E40P24H P /4 2-9/2 -/6 /2 / E40P2H P /4 2-9/2 -/6 /2 / E40P27H P /4 2-9/2 -/6 /2 / E40Q0H Q /6 2-2/2 2-/2 0 4-/8 -/ E40QH Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q6H Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q42H Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q48H Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q4H Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q60H Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q68 Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q72 Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q76 Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q84 Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q9 Q /6 2-2/2 2-/2 0 4-/8 -/ E40Q02 Q /6 2-2/2 2-/2 0 4-/8 -/ Sprockets with H suffix have hardened teeth. E-42

43 All Steel Stock Sprockets No. 0 Pitch Single Type BS 2 Setscrews Bored-To-Size Length Weight Stock Finished Bores No. Catalog Outside Thru Lbs. Includes Keyway Teeth Number Diameter Bore (Approx.) and 2 Setscrews 9 0BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS Keyway with Setscrew at 90. KEYWAY IS ON CENTER LINE OF TOOTH. diameters vary to suit different bore sizes. E-4

44 No. 0 Pitch All Steel Stock Sprockets No. 0 Hardened Teeth 2 Setscrews Bored-To-Size Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and 2 Setscrews.4 9 0BS9HT BS0HT BSHT BS2HT BSHT BS4HT BSHT BS6HT BS7HT BS8HT BS9HT BS20HT BS2HT BS22HT BS2HT BS24HT Indicates no keyway. (2) 4 setscrews only in 2 & bore at 90. Setscrews at 90 and 80 to key. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. Length Thru TYPE BS Length Thru Martin stock hardened teeth sprockets afford longer chain and sprocket life. Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 R.P.M. Single-Type C Steel Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 2 0C C C C C C C C C Has recessed groove in hub for chain clearance. O.D. Length Thru TYPE C.4 E-44

45 All Steel Stock Sprockets No. 0 /8 Pitch TYPE A Double Single-Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS0A A DS0A A DS0A A DS0A A DS0A A DS0A A DS0A A DS0A A DS0A A DS0A A TAPER BUSH TYPE A Double Single-Taper Bushed Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only 6 DS0ATB6H A DS0ATB7H A DS0ATB8H A DS0ATB9H A DS0ATB20H A DS0ATB2H A DS0ATB2H A DS0ATB24H A Sprockets with H suffix have hardened teeth. MST TYPE B Double Single- MST Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only 7 DS0H7H H BH DS0P9H P B DS0P2H P B DS0P2H P B DS0P24H P B Sprockets with H suffix have hardened teeth. E-4

46 No. 0 Pitch Stainless Steel Stock Sprockets Single-Type B Stainless Single-Type A Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 0 0B0SS 2.00 B BSS 2.00 B B2SS 2.70 B BSS 2.90 B B4SS.0 B BSS.20 B B6SS.20 B B7SS.720 B B8SS.920 B B9SS 4.20 B B20SS 4.20 B B2SS 4.20 B A 0A2SS B22SS B 4 2. A 0A22SS B2SS B A 0A2SS B24SS.20 B A 0A24SS B2SS.20 B A 0A2SS B26SS.20 B A 0A26SS B28SS.920 B A 0A28SS B0SS 6.20 B A 0A0SS BSS 7.20 B A 0ASS B40SS 8.20 B A 0A40SS B4SS 9.0 B A 0A4SS B60SS 2.00 B A 0A60SS Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Sprockets altered at factory (rebored with keyway and setscrew added) will be supplied with stainless setscrew. Alteration Charges.4 See current discount sheet for alteration charges. O.D. Length Thru STAINLESS STEEL TYPE B E-46

47 All Steel Stock Sprockets No. 0 /8 Pitch O.D. Alteration Charges See current discount sheet for alteration charges. OD.4 TYPE A.4 Length Thru TYPE B Single-Type B Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 8 0B8.880 B.2 9 0B B B B B 2.00 B B B A 0A2.4 0B 2.90 B A 0A B4.0 B A 0A4.0 0B.20 B A 0A.4 6 0B6.20 B A 0A B7.720 B A 0A B8.920 B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B24.20 B A 0A B2.20 B A 0A B26.20 B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B 6.20 B A 0A B B A 0A B B A 0A B B A 0A B 7.20 B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B4 9.0 B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B0 0.0 B A 0A B 0.0 B A 0A B B A 0A B 0.90 B A 0A B4.0 B A 0A B.0 B A 0A B6.00 B A 0A B7.700 B A 0A B8.900 B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A B B A 0A Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-47

48 No. 0 Pitch All Steel Stock Sprockets Single-Type QD With Hardened Teeth No. Catalog S Teeth Number A B E R 2 0JA2H 0JAH 4 0JA4H 0JAH 6 0JA6H 7 0SH7H 8 0SH8H 9 0SH9H 20 0SDS20H 2 0SDS2H 22 0SDS22H 2 0SDS2H 24 0SDS24H 2 0SDS2H 26 0SDS26H 27 0SDS27H 28 0SDS28H 0 0SDS0H T O O T H O.D. Single-Type QD QD TYPE B Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y G X T Only 2 0JA2 JA B JA JA B JA4 JA B.4.2 0JA JA B JA6 JA B SH7 SH B SH8 SH B SH9 SH B SDS20 SDS B SDS2 SDS B SDS22 SDS B SDS2 SDS B SDS24 SDS B SDS2 SDS B SDS26 SDS.20.8 B SDS27 SDS B SDS28 SDS B SDS0 SDS B SDS2 SDS B SDS SDS B SDS6 SDS B SDS40 SDS B SDS42 SDS B SDS4 SDS B SDS48 SDS B SK4 SK B SK60 SK B SK70 SK B SK72 SK B SF80 SF B SF84 SF B SF96 SF B SF2 SF B E-48

49 All Steel Stock Sprockets No. 0 Pitch Single-Taper Bushed with Hardened Teeth No. Catalog Teeth Number S A B E R 2 0BTB2H 0BTBH 4 0BTB4H 0BTBH 6 0BTB6H 7 0BTB7H 8 0BTB8H 9 0BTB9H 20 0BTB20H 2 0BTB2H 22 0BTB22H 2 0BTB2H 24 0BTB24H 2 0BTB2H 26 0BTB26H 27 0BTB27H 28 0BTB28H 0 0BTB0H T O O T H O.D. L.4 TYPE B C Single-Taper Bushed Diameter Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 2 0BTB B.. 0BTB B.. 4 0BTB B.6. 0BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B.6.7 0BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B 8.7. Has recessed groove in hub for chain clearance. E-49

50 FOR MORE INFORMATION CALL CLARK No. 0 /8 Pitch Single - MST Sprockets MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 0HH H /2 2/2 /4 7/2 2 /2 / H4H H /2 9/2 /4 /2 2 /2 / HH H /2 /2 /4 /6 2 /2 / PH P /4 2 /6 /6 0 9/ H6H H /2 /2 /4 /6 2 /2 / P6H P /4 2 /6 /6 0 9/ H7H H /2 /2 /4 /6 2 /2 / P7H P /4 2 /6 /6 0 9/ H8H H /2 /2 /4 /6 2 /2 / P8H P /4 2 /6 /6 0 9/ H9H H /2 /2 /4 /6 2 /2 / P9H P /4 2 /6 /6 0 9/ H20H H /2 /2 /4 /6 2 /2 / P20H P /4 2 /6 /6 0 9/ H2H H /2 /2 /4 /6 2 /2 / P2H P /4 2 /6 /6 0 9/ H22H H /2 /2 /4 /6 2 /2 / P22H P /4 2 /6 /6 0 9/ H2H H /2 /2 /4 /6 2 /2 / P2H P /4 2 /6 /6 0 9/ Q2H Q /6 2 2/2 2 /2 0 4 /8 2 / H24H H /2 /2 /4 /6 2 /2 / P24H P /4 2 /6 /6 0 9/ Q24H Q /6 2 2/2 2 /2 0 4 /8 2 / H2H H /2 /2 /4 /6 2 /2 / P2H P /4 2 /6 /6 0 9/ Q2H Q /6 2 2/2 2 /2 0 4 /8 2 / H26H H.20.8 /2 /2 /4 /6 2 /2 / P26H P /4 2 /6 /6 0 9/ Q26H Q /6 2 2/2 2 /2 0 4 /8 2 / H27H H /2 /2 /4 /6 2 /2 / P27H P /4 2 /6 /6 0 9/ Q27H Q /6 2 2/2 2 /2 0 4 /8 2 / H28H H /2 /2 /4 /6 2 /2 / P28H P /4 2 /6 /6 0 9/ Q28H Q /6 2 2/2 2 /2 0 4 /8 2 / P29H P /4 2 /6 /6 0 9/ H0H H /2 /2 /4 /6 2 /2 / P0H P /4 2 /6 /6 0 9/ Q0H Q /6 2 2/2 2 /2 0 4 /8 2 / P P /4 2 /6 /6 0 9/ H2H H /2 /2 /4 /6 2 /2 / P2 P /4 2 /6 /6 0 9/ Q2 Q /6 2 2/2 2 /2 0 4 /8 2 / HH H /2 /2 /4 /6 2 /2 / P P /4 2 /6 /6 0 9/ H4H H /2 /2 /4 /6 2 /2 / P4 P /4 2 /6 /6 0 9/ HH H /2 /2 /4 /6 2 /2 / P P /4 2 /6 /6 0 9/ Q Q /6 2 2/2 2 /2 0 4 /8 2 / H6H H /2 /2 /4 /6 2 /2 / P6 P /4 2 /6 /6 0 9/ Q6 Q /6 2 2/2 2 /2 0 4 /8 2 / Q7 Q /6 2 2/2 2 /2 0 4 /8 2 / H8H H /2 /2 /4 /6 2 /2 / Q8 Q /6 2 2/2 2 /2 0 4 /8 2 / Q9 Q /6 2 2/2 2 /2 0 4 /8 2 / H40H H /2 /2 /4 /6 2 /2 / Q40 Q /6 2 2/2 2 /2 0 4 /8 2 / Q4 Q /6 2 2/2 2 /2 0 4 /8 2 / Q42 Q /6 2 2/2 2 /2 0 4 /8 2 / Q44 Q /6 2 2/2 2 /2 0 4 /8 2 / Q4 Q /6 2 2/2 2 /2 0 4 /8 2 / Q47 Q /6 2 2/2 2 /2 0 4 /8 2 / Q48 Q /6 2 2/2 2 /2 0 4 /8 2 / Q0 Q /6 2 2/2 2 /2 0 4 /8 2 / Q4 Q /6 2 2/2 2 /2 0 4 /8 2 / Q6 Q /6 2 2/2 2 /2 0 4 /8 2 / Q60 Q /6 2 2/2 2 /2 0 4 /8 2 / Q70 Q /6 2 2/2 2 /2 0 4 /8 2 / Q72 Q /6 2 2/2 2 /2 0 4 /8 2 / Q80 Q /6 2 2/2 2 /2 0 4 /8 2 / Q84 Q /6 2 2/2 2 /2 0 4 /8 2 / Q96 Q /6 2 2/2 2 /2 0 4 /8 2 / Q2 Q /6 2 2/2 2 /2 0 4 /8 2 / E-0 Sprockets with H suffix have hardened teeth.

51 All Steel Stock Sprockets No. 0-2 Pitch Double-Type B Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) Alteration Charges See current discount sheet for alteration charges. QD TYPE C O.D..04 Length Thru TYPE B.2 D0BH 2.00 B D0B2H 2.70 B D0BH 2.90 B D0B4H.0 B D0BH.20 B D0B6H.20 B D0B7H.720 B D0B8H.920 B D0B9H 4.20 B D0B20H 4.20 B D0B2H 4.20 B D0B22H B D0B2H B D0B24H.20 B D0B2H.20 B D0B26.20 B D0B B D0B B D0B 7.20 B D0B B D0B B D0B B D0B4 9.0 B D0B B D0B B D0B4.0 B D0B B D0B B D0B B D0B B D0B B D0B B D0B B D0B B D0B B Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. NOTE: Double 0 stock sprockets with 2 teeth or less have hardened teeth. As indicated by H suffix. Double-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P X T W Only 6 D0SK6 SK C D0SK42 SK C D0SK48 SK C D0SF2 SF C D0SF4 SF C D0SF60 SF C D0SF68 SF.890. C D0SF72 SF C D0SF76 SF C D0SF84 SF C D0SF9 SF C D0SF02 SF C D0SF2 SF C E-

52 No. 0-2 Pitch All Steel Stock Sprockets C C C Double-Taper Bushed L Diameter Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 4 D0ATB4H A.8. D0ATBH A D0ATB6H A..6 7 D0ATB7H A..6 8 D0ATB8H A..9 9 D0ATB9H A D0BTB20H B..7 2 D0BTB2H B D0BTB2H B D0BTB B D0CTB C D0CTB C D0CTB C D0CTB C D0CTB C D0CTB C D0CTB C D0CTB C D0CTB C D0CTB C 67.. NOTE: Double 0 stock sprockets with 2 teeth or less have hardened teeth. As indicated by H suffix. L TYPE A TYPE B TYPE C L E-2

53 MST Sprockets No. 0-2 /8 Pitch Double - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 4 D0H4H H /2 2 /6 -/4 7/8 2-/2 -/ D0PH P /4 7/6 -/6 -/4 -/ D0P6H P /4 2-/6 -/6 /2 -/ D0P7H P /4 2-/6 -/6 /2 -/ D0P8H P /4 2-/6 -/6 /2 -/ D0P9H P /4 2-/6 -/6 0 29/ D0P20H P /4 2-/6 -/6 0 29/ D0P2H P /4 2-/6 -/6 0 29/ D0P22H P /4 2-/6 -/6 0 29/ D0P2H P /4 2-/6 -/6 0 29/ D0Q24H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q26H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q27H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q28H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q0H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ D0QH Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q6H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q40H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q42H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q4H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q48H Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q2 Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q4 Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q60 Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q72 Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q76 Q /6 2-2/2 2-/2 0 4-/8 -/ D0Q84 Q /6 2-2/2 2-/2 0 4-/8 -/ D0R9 R /4 -/2 2-7/8 0 -/8 2-/ D0R96 R /4 -/2 2-7/8 0 -/8 2-/ D0R02 R /4 -/2 2-7/8 0 -/8 2-/ D0R2 R /4 -/2 2-7/8 0 -/8 2-/ Sprockets with H suffix have hardened teeth. E-

54 No. 0- Pitch All Steel Stock Sprockets Triple-Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) E0BH 2.00 B E0B2H 2.70 B E0BH 2.90 B E0B4H.0 B E0BH.20 B E0B6H.20 B E0B7H.720 B E0B8H.920 B E0B9H 4.20 B E0B20H 4.20 B E0B2H 4.20 B E0B22H B E0B2H B E0B24H.20 B E0B2H.20 B E0B26.20 B E0B B E0B 7.20 B E0B B E0B B E0B B E0B B E0B B E0B B E0C C E0C C E0C C E0C C E0C C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat..78 Length Thru TYPE B.2.78 Length Thru TYPE C.2 NOTE: Triple 0 stock sprockets with 2 teeth or less have Hardened Teeth. As indicated by H suffix. Alteration Charges See current discount sheet for alteration charges. QD TYPE B NOTE: Triple 0 stock sprockets with 2 teeth or less have hardened teeth. Triple-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y V X T W Only 6 E0SK6 SK B E0SK42 SK B E0SK48 SK B E0SF2 SF B E0SF60 SF B E0SF68 SF.890. B E0SF72 SF B E0SF76 SF B E0SF84 SF B E0SF9 SF B E0SF02 SF B E-4

55 MST Sprockets No. 0- /8 Pitch Triple - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only E0PH P /4 4-/8 2-/6 /6 -/ E0P6H P /4 /8 2-/6 /6 -/ E0P7H P /4 /8 2-/6 /6 -/ E0P8H P /4 /8 2-/6 /6 -/ E0P9H P /4 2-/8 -/6 7/6 / E0P20H P /4 2-/8 -/6 7/6 / E0P2H P /4 2-/8 -/6 7/6 / E0P2H P /4 2-/8 -/6 7/6 / E0Q24H Q /6 2-2/2 2-/2 0 4-/8 / E0Q2H Q /6 2-2/2 2-/2 0 4-/8 / E0Q26H Q /6 2-2/2 2-/2 0 4-/8 / E0Q28H Q /6 2-2/2 2-/2 0 4-/8 / E0Q0H Q /6 2-2/2 2-/2 0 4-/8 / E0Q2H Q /6 2-2/2 2-/2 0 4-/8 / E0QH Q /6 2-2/2 2-/2 0 4-/8 / E0Q6H Q /6 2-2/2 2-/2 0 4-/8 / E0Q40H Q /6 2-2/2 2-/2 0 4-/8 / E0Q42H Q /6 2-2/2 2-/2 0 4-/8 / E0Q48H Q /6 2-2/2 2-/2 0 4-/8 / E0Q2 Q /6 2-2/2 2-/2 0 4-/8 / E0R60 R /4 2-/2 2-7/8 0 -/8 -/ E0R68 R /4 2-/2 2-7/8 0 -/8 -/ E0R72 R /4 2-/2 2-7/8 0 -/8 -/ E0R76 R /4 2-/2 2-7/8 0 -/8 -/ E0R84 R /4 2-/2 2-7/8 0 -/8 -/ E0R9 R /4 2-/2 2-7/8 0 -/8 -/ E0R02 R /4 2-/2 2-7/8 0 -/8 -/ Sprockets with H suffix have hardened teeth. E-

56 No Pitch All Steel Stock Sprockets Single Type BS 2 Setscrews Bored-To-Size Length Weight Stock Finished Bores No. Catalog Outside Thru Lbs. Includes Keyway Teeth Number Diameter Bore (Approx.) and Setscrews 9 60BS BS BS BSW BS BS2W BS BS BS BS BS BS BS8W BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS diameters vary to suit different bore sizes. W = Winch Sprockets KW 6 2 One SS at 90 KEYWAY IS ON CENTER LINE OF TOOTH. E-6

57 All Steel Stock Sprockets No Pitch Length Thru TYPE BS.49 No. 60-Hardened Teeth 2 Setscrews Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and Setscrews 9 60BS9HT BS0HT BSHT BS2HT BSHT BS4HT BSHT BS6HT BS7HT BS8HT BS9HT BS20HT KEYWAY IS ON CENTER LINE OF TOOTH. Martin stock hardened teeth sprockets afford longer chain and sprocket life. Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 R.P.M. O.D. Length Thru TYPE C.49 Single-Type C Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 2 60C C C C C C C Has recessed groove in hub for chain clearance. E-7

58 No Pitch All Steel Stock Sprockets Double Single-Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS60A A DS60A A DS60A A DS60A A DS60A A DS60A A DS60A A DS60A A DS60A A DS60A A DS60A A DS60A A TYPE A Double Single-Taper Bushed Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only 6 DS60ATB6H A DS60ATB7H A DS60ATB8H A DS60ATB9H A DS60ATB20H A DS60ATB2H A DS60ATB2H A DS60ATB24H A TAPER BUSH TYPE A Double Single-MST Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only 7 DS60P7H P B DS60P9H P B DS60Q2H Q B DS60Q22H Q B DS60Q2H Q B DS60Q24H Q B E-8 MST TYPE B

59 Stainless Steel Stock Sprockets No Pitch Single-Type B Stainless Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Appl.) 2 60B2SS.20 B BSS.490 B B4SS.740 B BSS.980 B B6SS B B7SS B B8SS B B9SS 4.90 B B20SS.90 B B2SS.40 B A 60A2SS B22SS.670 B A 60A22SS B2SS.90 B A 60A2SS B24SS 6.0 B A 60A24SS B2SS 6.90 B A 60A2SS B26SS 6.60 B A 60A26SS B28SS 7.0 B A 60A28SS B0SS 7.90 B A 60A0SS BSS B A 60ASS B40SS B A 60A40SS B4SS.80 B A 60A4SS B60SS B A 60A60SS Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Sprockets altered at factory (rebored with keyway and setscrew added) will be supplied with stainless setscrew. Alteration Charges See current discount sheet for alteration charges..49 O.D. Length Thru STAINLESS STEEL TYPE B E-9

60 No Pitch All Steel Stock Sprockets Single-Type B Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 8 60B B B9 2.0 B B B A 60A B.000 B A 60A B2.20 B A 60A B.490 B A 60A B4.740 B A 60A B.980 B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B20.90 B A 60A B2.40 B A 60A B B A 60A B2.90 B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B 7.80 B A 60A B B A 60A B 8.00 B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B4.80 B A 60A B B A 60A B47.60 B A 60A B B A 60A B B A 60A B B A 60A B 2.60 B A 60A B B A 60A B.090 B A 60A B4.0 B A 60A B.70 B A 60A B6.80 B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B6.960 B A 60A A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A O.D. TYPE A TYPE B Alteration Charges See current discount sheet for alteration charges Length Thru Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-60

61 All Steel Stock Sprockets No Pitch Single-Type QD With Hardened Teeth No. Teeth Catalog Number 60JAH 2 60JA2H 60JAH 4 60SH4H 60SHH 6 60SH6H 7 60SDS7H 8 60SDS8H 9 60SDS9H 20 60SDS20H 2 60SDS2H 22 60SDS22H 2 60SDS2H 24 60SDS24H 2 60SDS2H 26 60SK26H 27 60SK27H 28 60SK28H 0 60SK0H C O.D. C O.D S A B E R T O O T H QD TYPE B QD TYPE B Single-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y G X T Only 60JA JA B JA2 JA B JA JA B SH4 SH B SH SH B SH6 SH B SDS7 SDS B SDS8 SDS B SDS9 SDS B SDS20 SDS B SDS2 SDS B SDS22 SDS B SDS2 SDS B SDS24 SDS B SDS2 SDS B SK26 SK B SK27 SK B SK28 SK B SK0 SK B SK2 SK B SK SK B SK6 SK B SK40 SK B SF42 SF B SF4 SF B SF48 SF B SF4 SF B SF60 SF B SF70 SF B SF72 SF B SF80 SF B SF84 SF B SF96 SF B E2 E B E-6

62 No Pitch All Steel Stock Sprockets Single-Taper Bushed with Hardened Teeth No. Catalog S Teeth Number A B E R 60BTBH 2 60BTB2H 60BTBH 4 60BTB4H 60BTBH 6 60BTB6H 7 60BTB7H 8 60BTB8H 9 60BTB9H 20 60BTB20H 2 60BTB2H 22 60BTB22H 2 60BTB2H 24 60BTB24H 2 60BTB2H 26 60BTB26H 27 60BTB27H 28 60BTB28H 0 60BTB0H T O O T H O.D..49 TAPER BUSH TYPE B Single-Taper Bushed Diameters Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 60BTB B BTB B.8. 60BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B Has recessed groove in hub for chain clearance. E-62

63 MST Sprockets No. 60 /4 Pitch Single - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 60HH H /2 -/6 -/4 /8 2-/2 -/ H2H H /2 -/4 -/4 /6 2-/2 -/ HH H /2 -/2 -/4 /6 2-/2 27/ PH P /4 2-/6 -/6 0 -/ H4H H /2 -/2 -/4 /6 2-/2 27/ P4H P /4 2-/6 -/6 0 -/ HH H /2 -/2 -/4 /6 2-/2 27/ PH P /4 2-/6 -/6 0 -/ H6H H /2 -/2 -/4 /6 2-/2 27/ P6H P /4 2-/6 -/6 0 -/ H7H H /2 -/2 -/4 /6 2-/2 27/ P7H P /4 2-/6 -/6 0 -/ H8H H /2 -/2 -/4 /6 2-/2 27/ P8H P /4 2-/6 -/6 0 -/ H9H H /2 -/2 -/4 /6 2-/2 27/ P9H P /4 2-/6 -/6 0 -/ H20H H /2 -/2 -/4 /6 2-/2 27/ P20H P /4 2-/6 -/6 0 -/ Q20H Q /6 2-2/2 2-/2 0 4-/8 2-/ P2H P /4 2-/6 -/6 0 -/ Q2H Q /6 2-2/2 2-/2 0 4-/8 2-/ H22H H /2 -/2 -/4 /6 2-/2 27/ P22H P /4 2-/6 -/6 0 -/ Q22H Q /6 2-2/2 2-/2 0 4-/8 2-/ P2H P /4 2-/6 -/6 0 -/ Q2H Q /6 2-2/2 2-/2 0 4-/8 2-/ H24H H /2 -/2 -/4 /6 2-/2 27/ P24H P /4 2-/6 -/6 0 -/ Q24H Q /6 2-2/2 2-/2 0 4-/8 2-/ P2H P /4 2-/6 -/6 0 -/ Q2H Q /6 2-2/2 2-/2 0 4-/8 2-/ P26H P /4 2-/6 -/6 0 -/ Q26H Q /6 2-2/2 2-/2 0 4-/8 2-/ P27H P /4 2-/6 -/6 0 -/ Q27H Q /6 2-2/2 2-/2 0 4-/8 2-/ P28H P /4 2-/6 -/6 0 -/ Q28H Q /6 2-2/2 2-/2 0 4-/8 2-/ Q29H Q /6 2-2/2 2-/2 0 4-/8 2-/ P0H P /4 2-/6 -/6 0 -/ Q0H Q /6 2-2/2 2-/2 0 4-/8 2-/ Q Q /6 2-2/2 2-/2 0 4-/8 2-/ Q2 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q Q /6 2-2/2 2-/2 0 4-/8 2-/ Q4 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q Q /6 2-2/2 2-/2 0 4-/8 2-/ Q6 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q7 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q8 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q9 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q40 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q4 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q42 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q44 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q4 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q47 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q48 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q0 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q4 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q6 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q60 Q /6 2-2/2 2-/2 0 4-/8 2-/ Q70 Q /6 2-2/2 2-/2 0 4-/8 2-/ R70 R /4 -/2 2-7/8 0 -/8 2-/ Q72 Q /6 2-2/2 2-/2 0 4-/8 2-/ R72 R /4 -/2 2-7/8 0 -/8 2-/ Q80 Q /6 2-2/2 2-/2 0 4-/8 2-/ R80 R /4 -/2 2-7/8 0 -/8 2-/ Q84 Q /6 2-2/2 2-/2 0 4-/8 2-/ R84 R /4 -/2 2-7/8 0 -/8 2-/ Q96 Q /6 2-2/2 2-/2 0 4-/8 2-/ R96 R /4 -/2 2-7/8 0 -/8 2-/ Q2 Q /6 2-2/2 2-/2 0 4-/8 2-/ R2 R /4 -/2 2-7/8 0 -/8 2-/ Sprockets with H suffix have hardened teeth. E-6

64 No Pitch All Steel Stock Sprockets Double-Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) D60BH.000 B D60B2H.20 B D60BH.490 B D60B4H.740 B D60BH.980 B D60B6H B D60B7H B D60B8H B D60B9H 4.90 B D60B20H.90 B D60B2H.40 B D60B22H.670 B D60B2H.90 B D60B24H 6.0 B D60B2H 6.90 B D60B B D60B B D60B B D60B B D60B B D60B B D60B B D60B4.80 B D60B B D60B B D60C C D60C C D60C C D60C C Length Thru TYPE B Length Thru TYPE C.444 Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. NOTE: Double 60 stock sprockets with 2 teeth or less have hardened teeth. As indicated by H suffix. Alteration Charges See current discount sheet for alteration charges. QD TYPE C QD TYPE C 2 QD TYPE C 4 Double-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G X T W Only 4 D60SH4H SH B D60SDS22H SDS B D60SF6 SF C D60E42 E C D60E4 E C D60E2 E C D60E60 E C D60E68 E C D60E76 E C D60E9 E C Not illustrated. Dimensions listed correspond approximately to illustrations shown. E-64

65 All Steel Stock Sprockets No Pitch.4.4 L L.4 TYPE A.4 TYPE B L TYPE C L TYPE C Double-Taper Bushed Diameters Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only D60BTBH B D60BTB4H B.6.7 D60BTBH B..8 6 D60BTB6H B D60BTB7H B D60ATB8H A D60ATB9H A D60BTB20H B D60BTB2H B D60BTB2H B D60BTB B.. 6 D60CTB C D60CTB C D60CTB C D60CTB C D60CTB C D60CTB C D60CTB C D60CTB C NOTE: Double 60 stock sprockets with 2 teeth or less have hardened teeth. E-6

66 No /4 Pitch MST Sprockets.4 Nom..4 Nom..4 Nom..4 Nom. Double - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only D60PH P /4 -/6 -/6 /8 -/ D60P4H P /4 -/6 /6 -/ D60PH P /4 -/6 /6 -/ D60P6H P /4 2-7/2 -/6 /2 / D60P7H P /4 2-7/2 -/6 /2 / D60P8H P /4 2-7/2 -/6 /2 / D60P9H P /4 2-7/2 -/6 /2 / D60P20H P /4 2-7/2 -/6 /2 / D60Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q22H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q24H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q26H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q27H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q28H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q0H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ D60QH Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q6H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q40H Q /6 2-2/2 2-/2 0 4-/8 -/ D60Q42 Q /6 2-2/2 2-/2 0 4-/8 -/ D60R42 R /4 -/2 2-7/8 0 -/8 7/ D60R4 R /4 -/2 2-7/8 0 -/8 7/ D60R48 R /4 -/2 2-7/8 0 -/8 7/ D60R2 R /4 -/2 2-7/8 0 -/8 7/ D60R4 R /4 -/2 2-7/8 0 -/8 7/ D60R60 R /4 -/2 2-7/8 0 -/8 7/ D60R68 R /4 -/2 2-7/8 0 -/8 7/ D60R72 R /4 -/2 2-7/8 0 -/8 7/ D60R76 R /4 -/2 2-7/8 0 -/8 7/ D60R84 R /4 -/2 2-7/8 0 -/8 7/ D60R9 R /4 -/2 2-7/8 0 -/8 7/ D60R96 R /4 -/2 2-7/8 0 -/8 7/ Sprockets with H suffix have hardened teeth. E-66

67 All Steel Stock Sprockets No Pitch Triple-Type B & C 2.28 Length Thru TYPE B Length Thru TYPE C.444 Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) E60BH.000 B E60B2H.20 B E60BH.490 B E60B4H.740 B E60BH.980 B E60B6H B E60B7H B E60B8H B E60B9H 4.90 B E60B20H.90 B E60B2H.40 B E60B22H.670 B E60B2H.90 B E60B24H 6.0 B E60B2H 6.90 B E60B B E60B B E60B B E60B B E60B B E60B4.80 B E60C C E60C C E60C C E60C C E60C C E60C C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. NOTE: Triple 60 stock sprockets with 2 teeth or less have hardened teeth. As indicated by H suffix. Alteration Charges See current discount sheet for alteration charges. QD TYPE B QD TYPE B Triple-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T W Only 6 E60E6 E B E60E42 E B E60E2 E B E60E68 E B E60E76 E B E60E9 E B E-67

68 No. 60- /4 Pitch MST Sprockets Triple - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only E60PH P /4 4 2/2 2-/6 7/2 -/ E60P4H P /4 29/2 2-/6-2/2 -/ E60PH P /4 29/2 2-/6-2/2 -/ E60P6H P /4 /8 -/6 /6 / E60Q7H Q /6 -/2 /2 4-/8-2/ E60Q8H Q /6 4-/6 -/2 /2 4-/8-2/ E60Q9H Q /6 4-/6 -/2 /2 4-/8-2/ E60Q20H Q /6 4-/6 -/2 /2 4-/8-2/ E60Q2H Q /6 -/4 2-/2 /2 4-/8 / E60Q22H Q /6 -/4 2-/2 /2 4-/8 / E60Q2H Q /6 2-2/2 2-/2 0 4-/8 / E60Q24H Q /6 2-2/2 2-/2 0 4-/8 / E60Q2H Q /6 2-2/2 2-/2 0 4-/8 / E60Q26H Q /6 2-2/2 2-/2 0 4-/8 / E60Q27H Q /6 2-2/2 2-/2 0 4-/8 / E60Q28H Q /6 2-2/2 2-/2 0 4-/8 / E60R0H R /4 -/2 2-7/8 0 -/8 / E60R2H R /4 -/2 2-7/8 0 -/8 / E60RH R /4 -/2 2-7/8 0 -/8 / E60R6H R /4 -/2 2-7/8 0 -/8 / E60R40 R /4 -/2 2-7/8 0 -/8 / E60R42 R /4 -/2 2-7/8 0 -/8 / E60R2 R /4 -/2 2-7/8 0 -/8 / Sprockets with H suffix have hardened teeth. E-68

69 All Steel Stock Sprockets No. 80 Pitch Single Type BS 2 Setscrews Bored-To-Size Length Weight Stock Finished Bores No. Catalog Outside Thru Lbs. Includes Keyway Teeth Number Diameter Bore (Approx.) and Setscrews 9 80BS BS BS0W BS BSW BS BS2W BS BS BS BSW BS BS BS BS8W BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS diameters vary to suit different bore sizes. W = Winch Sprockets KW 6 2 One S.S. at 90 NOTE: KEYWAY IS ON CENTER LINE OF TOOTH E-69

70 No. 80 Pitch All Steel Stock Sprockets Single Type BS Winch Setscrew Length Weight Stock Finished Bores No. Catalog Outside Thru Lbs. Includes Keyway (see Footnote) Teeth Number Diameter Bore (Approx.) and Set Screw at 90 from Keyway BS0W BSW BS2W BSW BS8W NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. Double Type BS Winch (Hardened Teeth) Setscrew Length Weight Stock Finished Bores No. Catalog Outside Thru Lbs. Includes Keyway (see Footnote) Teeth Number Diameter Bore (Approx.) and Set Screw at 90 from Keyway 2 D80BS2HW D80BSHW D80BS8HW D80BS20HW D80BS24HW NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. Length Thru SINGLE TYPE BS.70.7 Footnote: 4 bore has a 6 x 2 keyway 2 bore has a 6 x 2 keyway 4 bore has a x 6 keyway 2 4 bore has a x 6 keyway Length Thru DOUBLE TYPE BS No. 80 Hardened Teeth 2 Setscrews Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and 2 Setscrews BS9HT BS0HT BSHT BS2HT BSHT BS4HT BSHT BS6HT BS7HT BS8HT BS9HT BS20HT NOTE: KEYWAY IS ON CENTER LINE OF TOOTH Martin stock hardened teeth sprockets afford longer chain and sprocket life. Hardened teeth on the smaller sprocket of a roller chain drive are recommended if the drive ratio is four to one or greater or if the smaller sprocket has 24 teeth or less and is running at a speed of over 600 R.P.M. Single-Type C Steel Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 80C C C C C C Has recessed groove in hub for chain clearance. E-70 O.D. Length Thru TYPE BS Length Thru TYPE C.7

71 All Steel Stock Sprockets No. 80 Pitch TYPE A Double Single-Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS80A A DS80A A DS80A A DS80A A DS80A A DS80A A DS80A A DS80A A DS80A A DS80A A DS80A A TAPER BUSH TYPE A Double Single-Taper Bushed Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only 7 DS80ATB7H A DS80ATB8H A DS80ATB9H A DS80ATB20H A DS80ATB2H A DS80ATB22H A DS80ATB2H A Sprockets with H suffix have hardened teeth. MST TYPE B Double Single- MST Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only 7 DS80Q7H Q B DS80Q9H Q B DS80Q20H Q B DS80R2H R B DS80R2H R B Sprockets with H suffix have hardened teeth. E-7

72 No. 80 Pitch Stainless Steel Stock Sprockets.7.7 O.D. O.D. TYPE A Length Thru TYPE B Single-Type B & C Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) 0 80B0SS.680 B BSS 4.00 B B2SS 4.0 B BSS B B4SS B BSS.00 B B6SS.60 B B7SS.90 B B8SS B B9SS 6.90 B B20SS 6.90 B B2SS B A 80A2SS B22SS 7.60 B A 80A22SS B2SS B A 80A2SS B24SS B A 80A24SS B2SS 8.20 B A 80A2SS B26SS B A 80A26SS B0SS 0.0 B A 80A0SS BSS.70 B A 80ASS B40SS.0 B A 80A40SS Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-72

73 All Steel Stock Sprockets No. 80 Pitch Single-Type B & C Single-Type A.7 Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) O.D. O.D. O.D. TYPE A TYPE B.7 Length Thru LengthThru TYPE C B8.00 B B9.0 B A 80A B0.680 B A 80A B 4.00 B A 80A B2 4.0 B 7.4 A 80A B B 2 2. A 80A B B A 80A B.00 B A 80A B6.60 B A 80A B7.90 B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B0 0.0 B A 80A B 0.40 B A 80A B B A 80A B.070 B A 80A B4.90 B A 80A B.70 B A 80A B B A 80A B7 2.0 B A 80A B B A 80A B B A 80A B40.0 B A 80A B4.60 B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B47.40 B A 80A B B A 80A B B A 80A B B A 80A B 6.80 B A 80A B2 7.0 B A 80A B 7.40 B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A C C A 80A C C A 80A C C A 80A C C A 80A C C A 80A C C A 80A C96.0 C A 80A C C A 80A2 2 6 Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-7

74 No. 80 Pitch All Steel Stock Sprockets Single-Type QD With Hardened Teeth No. Catalog S Teeth Number A B E R 80SHH 2 80SH2H 80SDSH 4 80SDS4H 80SKH 6 80SK6H 7 80SK7H 8 80SK8H 9 80SK9H 20 80SF20H 2 80SF2H 22 80SF22H 2 80SF2H 24 80SF24H 2 80SF2H 26 80SF26H 27 80SF27H 28 80SF28H 0 80SF0H T O O T H O.D. O.D. QD TYPE B QD TYPE C Single-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G X T Only 80SH SH B SH2 SH B SDS SDS B SDS4 SDS B SK SK B SK6 SK B SK7 SK B SK8 SK B SK9 SK B SF20 SF B SF2 SF B SF22 SF B SF2 SF B SF24 SF B SF2 SF B SF26 SF B SF27 SF B SF28 SF B SF0 SF B SF2 SF B SF SF B SF4 SF B SF SF.70.6 B SF6 SF B SF40 SF B SF42 SF B SF4 SF B SF48 SF B SF4 SF B SF60 SF B E70 E C E72 E C E80 E C E84 E C E96 E C F2 F C E-74

75 All Steel Stock Sprockets No. 80 Pitch S A B E R T O O T H Single-Taper Bushed with Hardened Teeth No. Teeth Catalog Number 0 80BTB0H 80BTBH 2 80BTB2H 80BTBH 4 80BTB4H 80BTBH 6 80BTB6H 7 80BTB7H 8 80BTB8H 9 80BTB9H 20 80BTB20H 2 80BTB2H 22 80BTB22H 2 80BTB2H 24 80BTB24H 2 80BTB2H 26 80BTB26H 27 80BTB27H 28 80BTB28H 0 80BTB0H O.D. TYPE B.7 Single-Taper Bushed Diameter Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 0 80BTB B..8 80BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B Has recessed groove in hub for chain clearance. E-7

76 No. 80 Pitch Single - MST Sprockets MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 0 80H0H H /2 2-/2 /4 2/2 2-/2-2/ HH H /2 -/2 -/4 /6 2-/2 / PH P /4 2-/2 -/6 /2-7/ P2H P /4 2-/6 -/6 0 -/ PH P /4 2-/6 -/6 0 -/ P4H P /4 2-/6 -/6 0 -/ Q4H Q /6 2-2/2 2-/2 0 4-/8 -/ PH P /4 2-/6 -/6 0 -/ QH Q /6 2-2/2 2-/2 0 4-/8 -/ P6H P /4 2-/6 -/6 0 -/ Q6H Q /6 2-2/2 2-/2 0 4-/8 -/ P7H P /4 2-/6 -/6 0 -/ Q7H Q /6 2-2/2 2-/2 0 4-/8 -/ P8H P /4 2-/6 -/6 0 -/ Q8H Q /6 2-2/2 2-/2 0 4-/8 -/ P9H P /4 2-/6 -/6 0 -/ Q9H Q /6 2-2/2 2-/2 0 4-/8 -/ Q20H Q /6 2-2/2 2-/2 0 4-/8 -/ Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ Q22H Q /6 2-2/2 2-/2 0 4-/8 -/ Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ Q24H Q /6 2-2/2 2-/2 0 4-/8 -/ Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ Q26H Q /6 2-2/2 2-/2 0 4-/8 -/ Q27H Q /6 2-2/2 2-/2 0 4-/8 -/ Q28H Q /6 2-2/2 2-/2 0 4-/8 -/ Q29H Q /6 2-2/2 2-/2 0 4-/8 -/ Q0H Q /6 2-2/2 2-/2 0 4-/8 -/ Q Q /6 2-2/2 2-/2 0 4-/8 -/ Q2 Q /6 2-2/2 2-/2 0 4-/8 -/ Q Q /6 2-2/2 2-/2 0 4-/8 -/ Q4 Q /6 2-2/2 2-/2 0 4-/8 -/ Q Q /6 2-2/2 2-/2 0 4-/8 -/ Q6 Q /6 2-2/2 2-/2 0 4-/8 -/ R6 R /4 -/2 2-7/8 0 -/8 2 / Q7 Q /6 2-2/2 2-/2 0 4-/8 -/ Q8 Q /6 2-2/2 2-/2 0 4-/8 -/ R9 R /4 -/2 2-7/8 0 -/8 2 / Q40 Q /6 2-2/2 2-/2 0 4-/8 -/ R40 R /4 -/2 2-7/8 0 -/8 2 / R4 R /4 -/2 2-7/8 0 -/8 2 / Q42 Q /6 2-2/2 2-/2 0 4-/8 -/ R42 R /4 -/2 2-7/8 0 -/8 2 / R44 R /4 -/2 2-7/8 0 -/8 2 / Q4 Q /6 2-2/2 2-/2 0 4-/8 -/ R4 R /4 -/2 2-7/8 0 -/8 2 / R47 R /4 -/2 2-7/8 0 -/8 2 / Q48 Q /6 2-2/2 2-/2 0 4-/8 -/ R48 R /4 -/2 2-7/8 0 -/8 2 / R0 R /4 -/2 2-7/8 0 -/8 2 / Q4 Q /6 2-2/2 2-/2 0 4-/8 -/ R4 R /4 -/2 2-7/8 0 -/8 2 / R6 R /4 -/2 2-7/8 0 -/8 2 / Q60 Q /6 2-2/2 2-/2 0 4-/8 -/ R60 R /4 -/2 2-7/8 0 -/8 2 / Q70 Q /6 2-2/2 2-/2 0 4-/8 2 / R70 R /4 -/2 2-7/8 0 -/8 2 / Q72 Q /6 2-2/2 2-/2 0 4-/8 2 / R72 R /4 -/2 2-7/8-7/6 -/8 7/ R80 R /4 -/2 2-7/8-7/6 -/8 7/ R84 R /4 -/2 2-7/8-7/6 -/8 7/ R96 R /4 -/2 2-7/8-7/6 -/8 7/ S2 S /4 4-/4 4-/8 2 /4 6-/8 -/ Sprockets with H suffix have hardened teeth. E-76

77 All Steel Stock Sprockets No Pitch Double-Type B & C O.D Length Thru TYPE B Length Thru TYPE C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 0 D80B0H.680 B D80BH 4.00 B D80B2H 4.0 B D80BH B D80B4H B D80BH.00 B D80B6H.60 B D80B7H.90 B D80B8H B D80B9H 6.90 B D80B20H 6.90 B D80B2H B D80B22H 7.60 B D80B2H B D80B24H B D80B2H 8.20 B D80B B D80B0 0.0 B D80B B D80B.70 B D80B B D80B B D80B B D80C2 7.0 C D80C C D80C C D80C C D80C C Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. NOTE: Double 80 stock sprockets with 2 teeth or less have hardened teeth. As indicated by H suffix. QD TYPE C QD TYPE C QD TYPE C 4 Alteration Charges See current discount sheet for alteration charges. Double-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T W Only 6 D80E6 E C D80E42 E C D80E4 E C D80E2 E C D80E60 E C D80E68 E C D80E76 E C D80F9 F C E-77

78 No Pitch All Steel Stock Sprockets C C C C L L L L TYPE A TYPE B TYPE C TYPE C Double-Taper Bushed Diameter Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only D80ATBH A D80ATB4H A..7 D80ATBH A D80ATB6H A.8. 7 D80ATB7H A.. 8 D80ATB8H A D80BTB9H B D80BTB20H B D80BTB2H B D80BTB2H B D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C 2 6. NOTE: Double 80 stock sprockets with 2 teeth or less have hardened teeth. As indicated by H suffix. E-78

79 MST Sprockets No Pitch Double- MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only D80PH P /4 2-9/2 -/6 /2 / D80Q4H Q /8 4 /8 -/2 27/2 4-/8 -/ D80QH Q /8-2/2 -/2 0 4-/8 / D80Q6H Q /6 2-2/2 2-/2 0 4-/8 / D80Q7H Q /6 2-2/2 2-/2 0 4-/8 / D80Q8H Q /6 2-2/2 2-/2 0 4-/8 / D80Q9H Q /6 2-2/2 2-/2 0 4-/8 / D80R20H R /4 -/2 2-7/8 0 -/8 -/ D80R2H R /4 -/2 2-7/8 0 -/8 -/ D80R22H R /4 -/2 2-7/8 0 -/8 -/ D80R2H R /4 -/2 2-7/8 0 -/8 -/ D80R24H R /4 -/2 2-7/8 0 -/8 -/ D80R2H R /4 -/2 2-7/8 0 -/8 -/ D80R26 R /4 -/2 2-7/8 0 -/8 -/ D80R27 R /4 -/2 2-7/8 0 -/8 -/ D80R28 R /4 -/2 2-7/8 0 -/8 -/ D80R0 R /4 -/2 2-7/8 0 -/8 -/ D80R6 R /4 -/2 2-7/8 0 -/8 -/ D80R42 R /4 -/2 2-7/8 0 -/8 -/ D80R4 R /4 -/2 2-7/8 0 -/8 -/ D80R48 R /8 -/2 4-7/8 2-9/2 -/8 7/ D80R2 R /8 -/2 4-7/8 2-9/2 -/8 7/ D80R4 R /8 -/2 4-7/8 2-9/2 -/8 7/ D80R60 R /8 -/2 4-7/8 2-9/2 -/8 7/ D80R68 R /8 -/2 4-7/8 2-9/2 -/8 7/ D80R72 R /8 -/2 4-7/8 2-9/2 -/8 7/ D80U76 U /2-2/2 -/4 2-/2 8-/8 -/ D80U9 U /2-2/2 -/4 2-/2 8-/8 -/ Sprockets with H suffix have hardened teeth. E-79

80 No. 80- Pitch All Steel Stock Sprockets Triple-Type B & C 2.86 Length Thru TYPE B Length Thru 2.86 TYPE C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) E80BH 4.00 B E80B2H 4.0 B E80BH B E80B4H B E80BH.00 B E80B6H.60 B E80B7H.90 B E80B8H B E80B9H 6.90 B E80B20H 6.90 B E80B2H B E80B22H 7.60 B E80B2H B E80B24H B E80B2H 8.20 B E80B B E80B0 0.0 B E80B.70 B E80B B E80C C E80C C E80C2 7.0 C E80C C E80C C E80C C E80C C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. As indicated by H suffix. Length Thru QD TYPE B TYPE B NOTE: Triple 80 stock sprockets with 2 teeth or less have hardened teeth. TYPE QD Alteration Charges See current discount sheet for alteration charges. Triple-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T W Only 6 E80E6 E B E80E42 E B E80E4 E B E80E2 E B E80F60 F B E80F68 F B E80F76 F B E80F9 F B E-80

81 MST Sprockets No. 80- Pitch Triple - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only E80PH P /4 -/4 2-/6 9/6 / E80Q4H Q /8 2/2 -/2 2 4-/8 -/ E80QH Q /8 4 29/2 -/2 -/8 4-/8 -/ E80Q6H Q /8 7/8 -/2 /2 4-/8 / E80Q7H Q /8 29/2 -/2 /8 4-/8 / E80Q8H Q /8 29/2 -/2 /8 4-/8 / E80Q9H Q /8 29/2 -/2 /8 4-/8 / E80R20H R /4 4 /2 2-7/8 7/8 -/8 7/ E80R2H R /4 4 /2 2-7/8 7/8 -/8 7/ E80R22H R /4 4 /2 2-7/8 7/8 -/8 7/ E80R2H R /4 -/2 2-7/8 0 -/ E80R24 R /4 -/2 2-7/8 0 -/ E80R2 R /4 -/2 2-7/8 0 -/ E80R26 R /4 -/2 2-7/8 0 -/ E80R27 R /4 -/2 2-7/8 0 -/ E80R28 R /4 -/2 2-7/8 0 -/ E80R0 R /4 -/2 2-7/8 0 -/ E80S6 S /4 -/8 4-/8 0 6-/8 -/ E80S42 S /4 -/8 4-/8 0 6-/8 -/ E80S4 S /4 -/8 4-/8 0 6-/8 -/ E80U2 U /2-2/2 -/4 0 8-/8-2/ E80U60 U /2-2/2 -/4 0 8-/8-2/ E80U68 U /2-2/2 -/4 0 8-/8-2/ E80U76 U /2-2/2 -/4 0 8-/8-2/ E80U9 U /2 -/64 -/4 /2 8-/8 -/ Sprockets with H suffix have hardened teeth. E-8

82 No Pitch All Steel Stock Sprockets.692 O.D. BORED-TO-SIZE Single Type BS 2 Setscrews Bored-To-Size Length Thru TYPE BS Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and Setscrews 8 00BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS BS diameters vary to suit different bore sizes. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH..692 Single-Type C Steel Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 0 00C C C C C O.D. Length Thru TYPE C E-82

83 All Steel Stock Sprockets No Pitch Double Single-Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS00A A DS00A A DS00A A DS00A A DS00A A DS00A A DS00A A DS00A A DS00A A TYPE A Double Single-Taper Bushed Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only DS00ATBH A DS00ATB6H A DS00ATB7H A DS00ATB8H A DS00ATB9H A DS00ATB20H A DS00ATB2H A Sprockets with H suffix have hardened teeth. TAPER BUSH TYPE A Double Single- MST Steel Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L C E L 2 Nom. Only 7 DS00R7H R B DS00R9H R B DS00R2H R B Sprockets with H suffix have hardened teeth. MST TYPE B E-8

84 No Pitch Stainless Steel Stock Sprockets O.D. O.D. O.D. TYPE A Length Thru TYPE B Length Thru TYPE C Single-Type B & C Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 00BSS.00 B B2SS.420 B BSS.820 B B4SS 6.20 B BSS 6.60 B Single-Type A 6 00B6SS 7.00 B A 00A6SS B7SS B A 00A7SS B8SS B A 00A8SS B9SS B A 00A9SS B20SS B A 00A20SS B2SS B A 00A2SS Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat., or setscrew at angle to keyseat. Alteration Charges See current discount sheet for alteration charges. E-84

85 All Steel Stock Sprockets No Pitch Single-Type B & C Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) 7.0 A 00A B8.770 B A 00A B B A 00A B B A 00A B.00 B A 00A B2.420 B A 00A B.820 B A 00A B B A 00A B 6.60 B A 00A B B A 00A B B A 00A B B A 00A B B A 00A B B A 00A B B A 00A B B A 00A B B A 00A B B A 00A B B A 00A B26.00 B A 00A B B A 00A B B A 00A B B A 00A B B A 00A A 00A B2.440 B A 00A A 00A A 00A B B A 00A B6.040 B A 00A A 00A B8.840 B A 00A B B A 00A B B A 00A A 00A B B A 00A A 00A A 00A B B A 00A A 00A A 00A B B A 00A A 00A A 00A A 00A A 00A A 00A C C A 00A A 00A A 00A A 00A A 00A A 00A C C A 00A C C A 00A C C A 00A C C A 00A C C A 00A C C A 00A C C A 00A C C A 00A Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. O.D. O.D..692 O.D. TYPE A.692 Length Thru TYPE B Length Thru TYPE C.692 Alteration Charges See current discount sheet for alteration charges. E-8

86 No Pitch All Steel Stock Sprockets Single-Type QD With Hardened Teeth No. Catalog S Teeth Number A B E R 00SDSH 2 00SDS2H 00SKH 4 00SK4H 00SFH 6 00SF6H 7 00SF7H 8 00E8H 9 00E9H 20 00E20H 2 00E2H 22 00E22H 2 00E2H 24 00E24H 2 00E2H 26 00E26H 27 00E27H 28 00E28H 0 00E0H T O O T H O.D. O.D. O.D. QD TYPE B QD TYPE B QD TYPE C Single-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G X T Only 00SDS SDS B SDS2 SDS B SK SK B SK4 SK B SF SF B SF6 SF B SF7 SF B E8 E B E9 E B E20 E B E2 E B E22 E B E2 E B E24 E B E2 E B E26 E B E27 E B E28 E B E0 E B E2 E B E E B E6 E B E40 E B E42 E B E4 E B E48 E B E4 E C E60 E C F70 F C F72 F C F80 F C F84 F C E-86

87 All Steel Stock Sprockets No Pitch Single-Taper Bushed with Hardened Teeth No. Catalog Teeth Number S A B E R 00BTBH 2 00BTB2H 00BTBH 4 00BTB4H 00BTBH 6 00BTB6H 7 00BTB7H 8 00BTB8H 9 00BTB9H 20 00BTB20H 2 00BTB2H 22 00BTB22H 24 00BTB24H 26 00BTB26H 28 00BTB28H 0 00BTB0H T O O T H O.D. L TYPE B.692 C Single-Taper Bushed Diameter Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 00BTB B BTB B..2 00BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B E-87

88 No Pitch MST Sprockets Single - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 00PH P /4 2-/6 -/6 0 -/ Q2H Q /6 2-27/2 2-/2 /6 4-/8-7/ QH Q /6 2-27/2 2-/2 /6 4-/8-7/ Q4H Q /6 2-2/2 2-/2 0 4-/8 -/ QH Q /6 2-2/2 2-/2 0 4-/8 -/ Q6H Q /6 2-2/2 2-/2 0 4-/8 -/ Q7H Q /6 2-2/2 2-/2 0 4-/8 -/ Q8H Q /6 2-2/2 2-/2 0 4-/8 -/ Q9H Q /6 2-2/2 2-/2 0 4-/8 -/ Q20H Q /6 2-2/2 2-/2 0 4-/8 -/ Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ R2H R /4 -/2 2-7/8 0 -/8 2-/ Q22H Q /6 2-2/2 2-/2 0 4-/8 -/ Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ Q24H Q /6 2-2/2 2-/2 0 4-/8 -/ R24H R /4 -/2 2-7/8 0 -/8 2-/ Q2H Q /6 2-2/2 2-/2 0 4-/8 -/ R2H R /4 -/2 2-7/8 0 -/8 2-/ Q26H Q /6 2-2/2 2-/2 0 4-/8 -/ R26H R /4 -/2 2-7/8 0 -/8 2-/ Q27H Q /6 2-2/2 2-/2 0 4-/8 -/ R27H R /4 -/2 2-7/8 0 -/8 2-/ Q28H Q /6 2-2/2 2-/2 0 4-/8 -/ R28H R /4 -/2 2-7/8 0 -/8 2-/ Q0H Q /6 2-2/2 2-/2 0 4-/8 -/ R0H R /4 -/2 2-7/8 0 -/8 2-/ Q2 Q /6 2-2/2 2-/2 0 4-/8 -/ R2 R /4 -/2 2-7/8 0 -/8 2-/ Q Q /6 2-2/2 2-/2 0 4-/8 -/ R R /4 -/2 2-7/8 0 -/8 2-/ R6 R /4 -/2 2-7/8 0 -/8 2-/ R40 R /4 -/2 2-7/8 0 -/8 2-/ R42 R /4 -/2 2-7/8 0 -/8 2-/ R4 R /4 -/2 2-7/8 0 -/8 2-/ R48 R /4 -/2 2-7/8 0 -/8 2-/ R4 R /4 -/2 2-7/8 -/6 -/8 7/ R60 R /4 -/2 2-7/8 -/6 -/8 7/ R70 R /4 -/2 2-7/8 -/6 -/8 7/ R72 R /4 -/2 2-7/8 -/6 -/8 7/ R80 R /4 -/2 2-7/8 -/6 -/8 7/ R84 R /4 -/2 2-7/8 -/6 -/8 7/ Sprockets with H suffix have hardened teeth. E-88

89 All Steel Stock Sprockets No Pitch Double-Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 9 D00B B D00B B D00B.00 B D00B2.420 B D00B.820 B D00B B D00B 6.60 B D00B B D00B B D00B B D00B B D00B B D00B B D00B B D00B B D00B B D00B B D00B26.00 B D00B B D00C C D00C C D00C C D00C C D00C C O.D Length Thru TYPE B Length Thru TYPE C.669 Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. QD TYPE C 2 QD TYPE C 6 Alteration Charges See current discount sheet for alteration charges. Double-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T W Only D00F F C D00F4 F C D00J60 J C D00J70 J C D00J80 J C E-89

90 No /4 Pitch MST Sprockets Double - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only D00PH P /4 2-/6 -/6 /4 / D00Q2H Q /8 4-7/2 -/2 7/6 4-/8 -/ D00QH Q /8 4-7/2 -/2 7/6 4-/8 -/ D00Q4H Q /6 -/2 2-/2 /6 4-/8 / D00QH Q /6 -/2 2-/2 /6 4-/8 / D00Q6H Q /6 -/2 2-/2 /6 4-/8 / D00R7H R /4-7/2 2-7/8 /6 -/8 7/ D00R8H R /4-7/2 2-7/8 /6 -/8 7/ D00R9 R /4-7/2 2-7/8 /6 -/8 7/ D00R20 R /4-7/2 2-7/8 /6 -/8 7/ D00R2 R /4-7/2 2-7/8 /6 -/8 7/ D00R22 R /4-7/2 2-7/8 /6 -/8 7/ D00R24 R /4-7/2 2-7/8 /6 -/8 7/ D00R R /4-7/2 2-7/8 /6 -/8 7/ D00S4 S /4 4-/4 4-/8 -/64 6-/8 -/ D00S60 S /4 4-/4 4-/8 -/64 6-/8 -/ D00S70 S /4 7-/8 6-/4 2 /4 6-/8 2-7/ D00S80 S /4 7-/8 6-/4 2 /4 6-/8 2-7/ Sprockets with H suffix have hardened teeth. E-90

91 All Steel Stock Sprockets No Pitch Triple-Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) E00B.00 B E00B2.420 B E00B.820 B E00B B E00B 6.60 B E00B B E00B B E00B B E00B B E00B B E00B B E00B B E00B B E00B B E00B B E00B26.00 B E00B B E00C C E00C C E00C C E00C C E00C C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat Length Thru TYPE B Length Thru TYPE C QD TYPE B QD TYPE C Alteration Charges See current discount sheet for alteration charges. Triple-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T W Only E00F F B E00F4 F B E00J60 J C E00J70 J C E00J80 J C E-9

92 No Pitch All Steel Stock Sprockets O.D. O.D. O.D. TYPE A Length Thru TYPE B Length Thru TYPE C Single-Type B & C Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) A 20A B9.020 B A 20A B0.20 B A 20A B 6.00 B A 20A B B A 20A B B A 20A B B A 20A B B A 20A B B A 20A B B A 20A B B A 20A B B A 20A B B A 20A B B A 20A B22.0 B A 20A B2.80 B A 20A B B A 20A B B A 20A B26.20 B A 20A A 20A B B A 20A B0.70 B A 20A B2 6.0 B A 20A A 20A A 20A B 7.70 B A 20A B B A 20A C C A 20A C C A 20A C C A 20A C C A 20A C C A 20A C C A 20A C C A 20A C C A 20A A 20A Has recessed groove in hub for chain clearance. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Alteration Charges See current discount sheet for alteration charges. E-92

93 All Steel Stock Sprockets No Pitch Single-Type QD With Hardened Teeth No. Catalog Teeth Number S A B E R 2 20SF2H 20SFH 4 20SF4H 20SFH 6 20E6H 7 20E7H 8 20E8H 9 20E9H 20 20E20H 2 20E2H 22 20E22H 2 20E2H 24 20E24H 2 20E2H 26 20E26H 28 20E28H 0 20E0H T O O T H O.D. O.D. O.D. QD TYPE B QD TYPE B QD TYPE C Single-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G X T Only 2 20SF2 SF B SF SF B SF4 SF B SF SF B E6 E B E7 E B E8 E B E9 E B E20 E B E2 E B E22 E B E2 E B E24 E B E2 E B E26 E B E28 E B E0 E B F2 F C F F C F6 F C F40 F C F42 F C F4 F C F48 F C F4 F C J60 J C J70 J C J80 J C E-9

94 FOR MORE INFORMATION CALL CLARK No Pitch Single-Taper Bushed All Steel Stock Sprockets Diameter Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 2 20BTB B..7 20BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B CTB C CTB C CTB C CTB C CTB C Single-Taper Bushed with Hardened Teeth No. Catalog S Teeth Number A B E R 2 20BTB2 H 20BTB H 4 20BTB4 H 20BTB H 6 20BTB6 H 7 20BTB7 H 8 20BTB8 H 9 20BTB9 H 20 20BTB20 H 2 20BTB2 H 24 20BTB24 H 26 20BTB26 H 0 20BTB0 H T O O T H O.D. L.924 TYPE B C L TYPE C.924 C Single-Type C Steel 2 Pitch Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 20C C C C Double Single-Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS20A A DS20A A DS20A A DS20A A DS20A A DS20A A TYPE A E-94

95 MST Sprockets No. 20 /2 Pitch Single - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 20QH Q /6 2-2/2 2-/2 0 4-/8 9/ Q2H Q /6 2-2/2 2-/2 0 4-/8 9/ QH Q /6 2-2/2 2-/2 0 4-/8 9/ Q4H Q /6 2-2/2 2-/2 0 4-/8 9/ QH Q /6 2-2/2 2-/2 0 4-/8 9/ Q6H Q /6 2-2/2 2-/2 0 4-/8 -/ R6H R /4 -/2 2-7/8 0 -/8 -/ Q7H Q /6 2-2/2 2-/2 0 4-/8 -/ R7H R /4 -/2 2-7/8 0 -/8 -/ Q8H Q /6 2-2/2 2-/2 0 4-/8 -/ R8H R /4 -/2 2-7/8 0 -/8 -/ R9H R /4 -/2 2-7/8 0 -/8 -/ R20H R /4 -/2 2-7/8 0 -/8 -/ R2H R /4 -/2 2-7/8 0 -/8 -/ R22H R /4 -/2 2-7/8 0 -/8 -/ R2H R /4 -/2 2-7/8 0 -/8 -/ R24H R /4 -/2 2-7/8 0 -/8 -/ R2H R /4 -/2 2-7/8 0 -/8 -/ R26H R /4 -/2 2-7/8 -/6 -/8 7/ R28H R /4 -/2 2-7/8 -/6 -/8 7/ R0H R /4 -/2 2-7/8 -/6 -/8 7/ R2 R /4 -/2 2-7/8 -/6 -/8 7/ R R /8 -/2 4-7/8 2 -/8 -/ R6 R /8 -/2 4-7/8 2 -/8 -/ R40 R /8 -/2 4-7/8 2 -/8 -/ S40 S /4 4-/4 4-/8 2-/8 6-/8 -/ S42 S /4 4-/4 4-/8 2-/8 6-/8 -/ R4 R /8 -/2 4-7/8 2 -/8 -/ S4 S /4 4-/4 4-/8 2-/8 6-/8 -/ S48 S /4 4-/4 4-/8 2-/8 6-/8 -/ S4 S /4 4-/4 4-/8 2-/8 6-/8 -/ R60 R /8 -/2 4-7/8 2 -/8 -/ S60 S /4 4-/4 4-/8 2-/8 6-/8 -/ R70 R /8 -/2 4-7/8 2 -/8 -/ S70 S /6 7-/8 6-/4 2-7/8 6-/8 2-/ R80 R /8 -/2 4-7/8 2 -/8 -/ S80 S /6 7-/8 6-/4 2-7/8 6-/8 2-/ Sprockets with H suffix have hardened teeth. E-9

96 No Pitch All Steel Stock Sprockets Double-Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) D20B 6.00 B D20B B D20B B D20B B D20B B D20B B D20B B D20B B D20B B D20B B D20B B D20B22.0 B D20B2.80 B D20B B D20B B D20B26.20 B D20B0.70 B D20C 7.70 C D20C C D20C C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. O.D Length Thru TYPE B Length Thru TYPE C.894 QD TYPE C QD TYPE C 6 Alteration Charges See current discount sheet for alteration charges. Double-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T W Only 0 D20J0 J C D20J J C D20J4 J C D20M60 M C E-96

97 MST Sprockets No Pitch Double - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 0 D20S0 S /4 4-/4 4-/8 /8 6-/8 -/ D20S S /4 4-/4 4-/8 /8 6-/8 -/ D20S4 S /6 7-/8 6-/4-27/2 6-/8 2-7/ D20U60 U /2-2/2 -/4-9/2 8-/8 9/ Sprockets with H suffix have hardened teeth. E-97

98 No Pitch All Steel Stock Sprockets.924 O.D. TYPE A.924 O.D. Single-Type B & C Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) 40B 7.00 B A 40A B B A 40A B 8.0 B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B9.40 B A 40A B B A 40A B B A 40A B B A 40A B2.780 B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A B B A 40A A B B A 40A C C A 40A A 40A C C A 40A C C A 40A C C A 40A C4.00 C A 40A C C A 40A C C A 40A C C A 40A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. O.D. TYPE B TYPE C Alteration Charges See current discount sheet for alteration charges. Length Thru Length Thru.924 E-98

99 All Steel Stock Sprockets No Pitch Single-Type QD With Hardened Teeth No. Catalog Teeth Number S A B E R 40SF H 2 40SF2 H 40SF H 4 40E4 H 40E H 6 40E6 H 7 40E7 H 8 40E8 H 9 40E9 H 20 40E20 H 2 40E2 H 22 40E22 H 2 40F2 H 24 40F24 H 2 40F2 H 26 40F26 H 0 40F0 H T O O T H O.D. O.D. O.D. QD TYPE B QD TYPE B QD TYPE C QD TYPE C Single-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T Only 40SF SF B SF2 SF B SF SF B E4 E B E E B E6 E B E7 E B E8 E B E9 E B E20 E B E2 E B E22 E B F2 F B F24 F B F2 F B F26 F B F0 F B F F C F6 F C J40 J C J4 J C J48 J C J4 J C J60 J C M70 M C M80 M C E-99

100 No Pitch All Steel Stock Sprockets Single-Taper Bushed with Hardened Teeth No. Catalog S Teeth Number.924 A B E R 2 40BTB2 H 40BTB H 4 40BTB4 H 40BTB H 6 40BTB6 H 7 40BTB7 H 8 40BTB8 H 9 40BTB9 H 2 40BTB2 H 26 40BTB26 H T O O T H O.D. L TYPE B C L TYPE C.924 C Single-Taper Bushed Diameter Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 2 40BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B CTB C CTB C CTB C CTB C Double Single-Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) 4 DS40A A DS40A A DS40A A DS40A A DS40A A TYPE A E-00

101 MST Sprockets No. 40 /4 Pitch Single - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 40QH Q /6 2-2/2 2-/2 0 4-/8 9/ Q2H Q /6 2-2/2 2-/2 0 4-/8 9/ RH R /4 -/2 2-7/8 0 -/8 -/ R4H R /4 -/2 2-7/8 0 -/8 -/ RH R /4 -/2 2-7/8 0 -/8 -/ R6H R /4 -/2 2-7/8 0 -/8 -/ R7H R /4 -/2 2-7/8 0 -/8 -/ R8H R /4 -/2 2-7/8 0 -/8 -/ R9H R /4 -/2 2-7/8 0 -/8 -/ R20H R /4 -/2 2-7/8 0 -/8 -/ R2H R /4 -/2 2-7/8 0 -/8 -/ R22H R /4 -/2 2-7/8 -/6 -/8 7/ R2H R /4 -/2 2-7/8 -/6 -/8 7/ R24H R /4 -/2 2-7/8 -/6 -/8 7/ R2H R /4 -/2 2-7/8 -/6 -/8 7/ R26H R /4 -/2 2-7/8 -/6 -/8 7/ R0H R /8 -/2 4-7/8 2 -/8 7/ R R /8 -/2 4-7/8 2 -/8 7/ R6 R /8 -/2 4-7/8 2 -/8 7/ S6 S /4 4/4 4-/8 2-/8 6-/8 -/ R40 R /8 -/2 4-7/8 2 -/8 7/ S40 S /4 4-/4 4-/8 2-/8 6-/8 -/ S4 S /4 4-/4 4/8 2-/8 6-/8 -/ S48 S /6 7-/2 6-/4 2-7/8 6-/8 2-/ S4 S /6 7-/2 6-/4 2-7/8 6-/8 2-/ S60 S /6 7-/2 6-/4 2-7/8 6-/8 2-/ S70 S /6 7-/2 6-/4 2-7/8 6-/8 2-/ S80 S /6 7-/2 6-/4 2-7/8 6-/8 2-/ Sprockets with H suffix have hardened teeth. E-0

102 No /4 Pitch All Steel Stock Sprockets Double-Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) D40B 8.0 B D40B B D40B B D40B B D40B B D40B B D40B9.40 B D40B B D40B B D40B B D40B2.780 B D40B B D40B B D40B B D40C C D40C C D40C C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. O.D Length Thru TYPE B Length Thru TYPE C.894 QD TYPE C QD TYPE C 6 Alteration Charges See current discount sheet for alteration charges. Double-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T W Only D40J J C D40J4 J C D40M60 M C E-02

103 All Steel Stock Sprockets No Pitch Single-Type B & C Single-Type A Plate Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) 8 60B B A 60A B B A 60A B B A 60A B 8.00 B A 60A B B A 60A B 9.0 B A 60A B B A 60A B 0.60 B A 60A B6.260 B A 60A B7.900 B A 60A B B A 60A B9.90 B A 60A B20.80 B A 60A B B A 60A B22.0 B A 60A B2.70 B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A C C A 60A C C A 60A C C A 60A C4.40 C A 60A C C A 60A C C A 60A C C A 60A O.D. TYPE A.6 O.D..6 Length Thru TYPE B Single-Type C Steel 2 Pitch.6 Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 60C C O.D. Length Thru TYPE C Alteration Charges Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. See current discount sheet for alteration charges. E-0

104 No Pitch All Steel Stock Sprockets Single-Type QD With Hardened Teeth No. Catalog S Teeth Number A B E R 2 60E2 H 60E H 4 60E4 H 60F H 6 60F6 H 7 60F7 H 8 60F8 H 9 60F9 H 20 60F20 H 2 60F2 H 22 60F22 H 2 60F2 H 24 60F24 H 2 60F2 H 26 60J26 H 28 60J28 H 0 60J0 H T O O T H O.D. O.D. QD TYPE B QD TYPE C QD TYPE C Single-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T Only 2 60E2 E B E E B E4 E B F F B F6 F B F7 F B F8 F B F9 F B F20 F B F2 F B F22 F B F2 F B F24 F B F2 F B J26 J C J28 J C J0 J C 96 60J J C M40 M C M4 M C M4 M C M60 M C M70 M C M80 M C E-04

105 All Steel Stock Sprockets No Pitch O.D. L TYPE B.6 C Single-Taper Bushed with Hardened Teeth No. Catalog Teeth Number S A B E R 60BTBH 2 60BTB2H 60BTBH 4 60BTB4H 60BTBH 6 60BTB6H 7 60BTB7H 8 60BTB8H 9 60BTB9H 2 60BTB2H 26 60BTB26H T O O T H.6 L TYPE C C Single-Taper Bushed Diameter Dimensions Weight (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 60BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B BTB B CTB C CTB C CTB C TYPE A Double Single-Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS60A A DS60A A DS60A A DS60A A E-0

106 No Pitch MST Sprockets Single - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 60RH R /4 -/2 2-7/8 /4 -/8 -/ R2H R /4 -/2 2-7/8 /4 -/8 -/ RH R /4 -/2 2-7/8 0 -/8-2/ R4H R /4 -/2 2-7/8 0 -/8-2/ RH R /4 -/2 2-7/8 0 -/8-2/ R6H R /4 -/2 2-7/8 0 -/8-2/ R7H R /4 -/2 2-7/8 0 -/8-2/ R8H R /4 -/2 2-7/8 0 -/8-2/ R9H R /4 -/2 2-7/8 0 -/8-2/ R20H R /8 -/2 4-7/8 2 -/8-2/ R2H R /8 -/2 4-7/8 2 -/8-2/ R22H R /8 -/2 4-7/8 2 -/8-2/ R2H R /8 -/2 4-7/8 2 -/8-2/ R24H R /8 -/2 4-7/8 2 -/8-2/ R2H R /8 -/2 4-7/8 2 -/8-2/ R26H R /8 -/2 4-7/8 2 -/8-2/ S26H S /6 7-/8 6-/4 2-7/8 6-/8 2-2/ R28H R /8 -/2 4-7/8 2 -/8-2/ S28H S /6 7-/8 6-/4 2-7/8 6-/8 2-2/ R0H R /8 -/2 4-7/8 2 -/8-2/ S0H S /6 7-/8 6-/4 2-7/8 6-/8 2-2/ S S /6 7-/8 6-/4 2-7/8 6-/8 2-2/ S40 S /6 7-/8 6-/4 2-7/8 6-/8 2-2/ S4 S /6 7-/8 6-/4 2-7/8 6-/8 2-2/ U60 U /2 2/2 -/4 -/6 8-/8-2/ U70 U /2 2/2 -/4 -/6 8-/8-2/ S80 S /6 7-/8 6-/4 2-7/8 6-/8 2-2/ U80 U /2 7-9/2 7-/8 2-7/8 8-/8 2 9/ Sprockets with H suffix have hardened teeth. E-06

107 All Steel Stock Sprockets No Pitch Double-Type B & C O.D..424 Length Thru TYPE B Length Thru TYPE C.9 Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (App.) D60B 9.0 B D60B B D60B 0.60 B D60B6.260 B D60B7.900 B D60B B D60B9.90 B D60B20.80 B D60B B D60B22.0 B D60B2.70 B D60B B D60B B D60B B D60C C D60C C D60C C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. QD TYPE C 6 Alteration Charges See current discount sheet for alteration charges. Double-Type QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L L 2 C Y P G V X T W Only D60M M C D60N4 N C D60N60 N C E-07

108 No Pitch All Steel Stock Sprockets Single-Type B & C Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) 80B 9.00 B A 80A B B A 80A B B A 80A B4.20 B A 80A B.90 B A 80A B B A 80A B7.90 B A 80A B8 4.0 B A 80A B B A 80A B20.60 B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A B B A 80A C C A 80A C 26.0 C A 80A C C A 80A C4.0 C A 80A C C A 80A C C A 80A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat O.D. O.D. O.D. Length Thru Length Thru Alteration Charges TYPE A TYPE B TYPE C See current discount sheet for alteration charges. E-08

109 All Steel Stock Sprockets No Pitch Single-Type B & C Single-Type A.89 Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) Type Number Bore (Approx.) O.D B B A 200A B B A 200A B B A 200A B.640 B A 200A B B A 200A B.260 B A 200A B B A 200A B B A 200A B8.680 B A 200A B B A 200A B B A 200A B B A 200A B B A 200A B B A 200A B B A 200A B B A 200A C C A 200A C C A 200A C C A 200A C C A 200A C C A 200A C C A 200A C C A 200A C C A 200A C C A 200A O.D. TYPE B.89 Length Thru TYPE A O.D. Length Thru TYPE C.89 Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Alteration Charges Single-Type QD See current discount sheet for alteration charges. Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Type Bore L L 2 C Y P G V X T Only 2 200F2 F C J J C J4 J C J J C J6 J C M7 M C M8 M C M9 M C M20 M C M2 M C M22 M C M2 M C M24 M C M2 M C M26 M C M28 M C M0 M C M2 M C M M C M40 M C N4 N C N4 N C N60 N C E-09

110 No Pitch MST Sprockets Single - MST Sprockets Diameters Dimensions Weight No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 2 200R2 R /8 -/2 4-7/8 2 -/8 -/ S S /6 7-/8 6-/4 2-7/8 6-/8 2-/ S4 S /6 7-/8 6-/4 2-7/8 6-/8 2-/ S S /6 7-/8 6-/4 2-7/8 6-/8 2-/ S6 S /6 7-/8 6-/4 2-7/8 6-/8 2-/ S7 S /6 7-/8 6-/4 2-7/8 6-/8 2-/ U8 U /2-2/2 -/4 /8 8-/8 2-7/ U9 U /2-2/2 -/4 /8 8-/8 2-7/ U20 U /2-2/2 -/4 /8 8-/8 2-7/ U2 U /2-2/2 -/4 /8 8-/8 2-7/ U22 U /2-2/2 -/4 /8 8-/8 2-7/ U2 U /2-2/2 -/4 /8 8-/8 2-7/ U24 U /2-2/2 -/4 /8 8-/8 2-7/ U2 U /2-2/2 -/4 /8 8-/8 2-7/ U26 U /2-2/2 -/4 /8 8-/8 2-7/ U28 U /2-2/2 -/4 /8 8-/8 2-7/ U0 U /2-2/2 -/4 /8 8-/8 2-7/ U2 U /2-2/2 -/4 /8 8-/8 2-7/ U U /2 7-9/2 7-/8 2-7/8 8-/8 2-7/ U40 U /2 7-9/2 7-/8 2-7/8 8-/8 2-7/ U4 U /2 7-9/2 7-/8 2-7/8 8-/8 2-7/ U4 U /2 0-/8 4-/4 8-/8-29/ U60 U /2 0-/8 4-/4 8-/8-29/ Sprockets with H suffix have hardened teeth. E-0

111 All Steel Stock Sprockets No Pitch Double-Type B & C Bore (inches (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) D200B B D200B B D200B.640 B D200B B D200B.260 B D200B B D200B B D200B8.680 B D200B B D200B B D200B B D200B B D200B B D200B B D200B B D200B B D200C C D200C C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. OD QD TYPE C QD TYPE C O.D. Alteration Charges See current discount sheet for alteration charges. Length Thru TYPE B Length Thru TYPE C E-

112 No. 240 Pitch All Steel Stock Sprockets Single-Type B & C Single-Type A Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) Type Number Bore (Approx.) 0 240B0.00 B A 240A B B A 240A B2.000 B A 240A B.970 B A 240A B B A 240A B.90 B A 240A B B A 240A B B A 240A B B A 240A B B A 240A B B A 240A B B A 240A B2 2.0 B A 240A C C A 240A C.0 C A 240A C C A 240A C C A 240A C4.0 C A 240A C C A 240A O.D. O.D. Length Thru Length Thru TYPE A TYPE B TYPE C E-2

113 Roller Chain Sprockets Metric Sprockets ISO STANDARDS Types A - B & C Stock Sprockets TYPE A TYPE B TYPE C TYPE B SIMPLEX SIMPLEX TRIPLEX DUPLEX Taper Bushed Taper Bushed INSTANT SIMPLEX DUPLEX SPLIT SPROCKET Made-to-Order Taper Bushed QD IDLER TYPE B DOUBLE-SIMPLEX SIMPLEX BALL BEARING SIMPLEX HARDENED TEETH STAINLESS Double Simplex QD Sprockets Idler Sprockets Stainless Steel E-

114 Metric Sprockets 0.7 INCH (9.2mm) PITCH SIMPLEX Simplex-Type B Steel Simplex-Type A Steel No. Pitch Catalog Bore Weight Catalog Bore Weight Teeth Diameter Number Stock Max. Thru (Approx.) Number Stock (Approx.) MM MM MM MM MM Kilos MM Kilos B B B B B B B B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A4 8. Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. ISO 06B- METRIC CHAIN DATA: BS 228/ ISO 06B- PITCH: 9.mm (0.7 in.) ROLLER DIAMETER: 6.mm (0.20 in.) ROLLER WIDTH:.72mm (0.22 in.) TENSILE: 90 kilos (2000 lbs.) TYPE A Length Thru.mm.209.mm.209 TYPE B E-4

115 Metric Sprockets 0.7 INCH (9.2mm) PITCH SIMPLEX ISO 06B-.mm.209 CHAIN DATA: BS 228/ ISO 06B- PITCH: 9.mm (0.7 in.) ROLLER DIAMETER: 6.mm (0.20 in.) ROLLER WIDTH:.72mm (0.22 in.) TENSILE: 90 kilos (2000 lbs.) METRIC C Length Thru TYPE B Simplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos BTB8H * BTB9H BTB20H BTB2H BTB22H BTB2H BTB24H BTB2H BTB26H * BTB28H BTB0H BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB Has recessed groove in hub for chain clearance. Sprockets with H suffix have hardened teeth. E-

116 Metric Sprockets ISO 06B-2 METRIC -2.44mm.608.2mm INCH (9.2mm) PITCH DUPLEX WIDTH CHAIN CHAIN DATA: BS 228/ ISO 06B-2 PITCH: 9.mm (0.7 in.) ROLLER DIAMETER: 6.mm (0.20 in.) ROLLER WIDTH:.72mm (0.22 in.) TENSILE: 70 kilos (800 lbs.) Length Thru TYPE B Duplex-Type B Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B D06B Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-6

117 Metric Sprockets ISO 06B-2 METRIC INCH (9.2mm) PITCH DUPLEX WIDTH CHAINS.44mm.608.2mm.20 CHAIN DATA: BS 228/ ISO 06B-2 PITCH: 9.mm (0.7 in.) ROLLER DIAMETER: 6.mm (0.20 in.) ROLLER WIDTH:.72mm (0.22 in.) TENSILE: 70 kilos (800 lbs.) C Length Thru TYPE B Duplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB E-7

118 Metric Sprockets 0.7 INCH (9.2mm) PITCH TRIPLEX ISO 06B- METRIC - 2.7mm.0.2mm.20 CHAIN DATA: BS 228/ ISO 06B- PITCH: 9.mm (0.7 in.) ROLLER DIAMETER: 6.mm (0.20 in.) ROLLER WIDTH:.72mm (0.22 in.) TENSILE: 240 kilos (600 lbs.) Length Thru TYPE B Triplex-Type B Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E06B E-8

119 Metric Sprockets ISO 08B- METRIC 40 CHAIN DATA: BS 228/7 ISO 08B- PITCH: 2.70mm (0.00 in.) ROLLER DIAMETER: 8.mm (0. in.) ROLLER WIDTH: 7.7mm (0.0 in.) TENSILE: 820 kilos (4000 lbs.) TYPE A Length Thru 7.7mm mm.290 Simplex-Type B Steel 0.00 INCH (2.70mm) PITCH SIMPLEX Simplex-Type A Steel No. Pitch Catalog Bore Weight Catalog Bore Weight Teeth Diameter Number Stock Max. Thru (Approx.) Number Stock (Approx.) MM MM MM MM MM Kilos MM Kilos B B B B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. TYPE B E-9

120 Metric Sprockets 0.00 INCH (2.70mm) PITCH SIMPLEX ISO 08B- METRIC mm.290 CHAIN DATA: BS 228/7 ISO 08B- PITCH: 2.70mm (0.00 in.) ROLLER DIAMETER: 8.mm (0. in.) ROLLER WIDTH: 7.7mm (0.0 in.) TENSILE: 820 kilos (4000 lbs.) C L TYPE B Simplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos BTB4H * BTBH BTB6H BTB7H * BTB8H * BTB9H BTB20H * BTB2H BTB22H BTB2H BTB24H BTB2H BTB26H BTB27H BTB28H BTB29H BTB0H BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB Has recessed groove in hub for chain clearance. Sprockets with H suffix have hardened teeth. E-20

121 Metric Sprockets 0.00 INCH (2.70mm) PITCH DUPLEX ISO 08B-2 2. mm mm.284 METRIC 40-2 CHAIN DATA: BS 228/7 ISO 08B-2 PITCH: 2.70mm (0.00 in.) ROLLER DIAMETER: 8.mm (0. in.) ROLLER WIDTH: 7.7mm (0.0 in.) TENSILE: 80 kilos (7000 lbs.) O.D. Length Thru TYPE B Duplex-Type B Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B D08B Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-2

122 Metric Sprockets ISO 08B-2 METRIC INCH (2.70mm) PITCH DUPLEX C.82 NOMINAL 2. MM.82 C NOMINAL 2. MM.82 NOMINAL 2. MM C CHAIN DATA: BS 228/7 ISO 08B-2 PITCH: 2.70mm (0.00 in.) ROLLER DIAMETER: 8.mm (0. in.) ROLLER WIDTH: 7.7mm (0.0 in.) TENSILE: 80 kilos (7000 lbs.) L L L TYPE A TYPE B TYPE C Duplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos 6.08 D08ATB D08ATB D08ATB D08BTB D08BTB D08BTB D08BTB D08BTB D08BTB D08BTB D08BTB D08BTB D08BTB D08BTB D08BTB D08BTB D08CTB D08CTB D08CTB D08CTB D08CTB D08CTB D08CTB D08CTB D08CTB D08CTB D08CTB D08CTB D08CTB D08CTB E-22

123 Metric Sprockets ISO 08B- METRIC mm mm INCH (2.70mm) PITCH TRIPLEX CHAIN DATA: BS 228/7 ISO 08B- PITCH: 2.70mm (0.00 in.) ROLLER DIAMETER: 8.mm (0. in.) ROLLER WIDTH: 7.7mm (0.0 in.) TENSILE: 440 kilos (0,000 lbs.) Length Thru TYPE B Triplex-Type B Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos 4.08 E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B E08B Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-2

124 Metric Sprockets 0.62 INCH (.88mm) PITCH SIMPLEX Simplex-Type B Steel Simplex-Type A Steel No. Pitch Catalog Bore Weight Catalog Bore Weight Teeth Diameter Number Stock Max. Thru (Approx.) Number Stock (Approx.) MM MM MM MM MM Kilos MM Kilos B B B B B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. ISO 0B- METRIC 0 CHAIN DATA: BS 228/ ISO 0B- PITCH:.88mm (0.62 in.) ROLLER DIAMETER: 0.6mm (0.400 in.) ROLLER WIDTH: 9.6mm (0.80 in.) TENSILE: 2270 kilos (400 lbs.) TYPE A Length Thru TYPE B 9.7 mm mm.6 E-24

125 Metric Sprockets ISO 0B- METRIC mm INCH (.88mm) PITCH SIMPLEX CHAIN DATA: BS 228/ ISO 0B- PITCH:.88mm (0.62 in.) ROLLER DIAMETER: 0.6mm (0.400 in.) ROLLER WIDTH: 9.6mm (0.80 in.) TENSILE: 2270 kilos (000 lbs.) C L TYPE B Simplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos BTB2H * BTBH BTB4H BTBH * BTB6H * BTB7H * BTB8H BTB9H BTB20H BTB2H BTB22H BTB2H BTB24H BTB2H BTB26H BTB27H BTB28H BTB0H BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB Has recessed groove in hub for chain clearance. Sprockets with H suffix have hardened teeth. E-2

126 Metric Sprockets 0.62 INCH (.88mm) PITCH DUPLEX ISO 0B-2 METRIC mm mm. CHAIN DATA: BS 228/ ISO 0B-2 PITCH:.88mm (0.62 in.) ROLLER DIAMETER: 0.6mm (0.400 in.) ROLLER WIDTH: 9.6mm (0.80 in.) TENSILE: 440 kilos (0,000 lbs.) Length Thru TYPE B Duplex-Type B Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos 6. D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B D0B Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-26

127 Metric Sprockets 0.62 INCH (.88mm) PITCH DUPLEX ISO 0B-2 METRIC mm mm mm.006 C L TYPE A C L TYPE B L TYPE C C Duplex-Taper Bushed Steel CHAIN DATA: BS 228/ ISO 0B-2 PITCH:.878mm (0.62 in.) ROLLER DIAMETER: 0.6mm (0.400 in.) ROLLER WIDTH: 9.6mm (0.80 in.) TENSILE: 440 kilos (0,000 lbs.) Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos D0ATB D0ATB D0ATB D0ATB D0ATB D0ATB D0BTB D0BTB D0BTB D0BTB D0BTB D0BTB D0CTB D0CTB D0CTB D0CTB D0CTB D0CTB D0CTB D0CTB D0CTB D0CTB D0CTB E-27

128 Metric Sprockets 0.62 INCH (.88mm) PITCH TRIPLEX ISO 0B mm mm mm mm. CHAIN DATA: BS 228/ ISO 0B- PITCH:.88mm (0.62 in.) ROLLER DIAMETER: 0.6mm (0.400 in.) ROLLER WIDTH: 9.6mm (0.80 in.) TENSILE: 680 kilos (0,000 lbs.) METRIC 0- Length Thru TYPE B Length Thru TYPE C Triplex-Type B Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos 6. E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0B E0C E0C E0C E0C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-28

129 Metric Sprockets ISO 2B- METRIC 60 CHAIN DATA: BS 228/ ISO 2B- PITCH: 9.0mm (0.70 in.) ROLLER DIAMETER: 2.07mm (0.47 in.) ROLLER WIDTH:.68mm (0.460 in.) TENSILE: 290 kilos (600 lbs.) TYPE A Length Thru.0 mm.47.0 mm.47 Simplex-Type B Steel 0.70 INCH (9.0mm) PITCH SIMPLEX Simplex-Type A Steel No. Pitch Catalog Bore Weight Catalog Bore Weight Teeth Diameter Number Stock Max. Thru (Approx.) Number Stock (Approx.) MM MM MM MM MM Kilos MM Kilos B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. TYPE B E-29

130 Metric Sprockets 0.70 INCH (9.0mm) PITCH SIMPLEX ISO 2B- METRIC 60 CHAIN DATA:.0 mm.47 BS 228/ ISO 2B- PITCH: 9.0mm (0.70 in.) ROLLER DIAMETER: 2.07mm (0.47 in.) ROLLER WIDTH:.68mm (0.460 in.) TENSILE: 290 kilos (600 lbs.) C L TYPE B Simplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos BTBH BTB2H BTBH BTB4H BTBH BTB6H BTB7H BTB8H BTB9H BTB20H BTB2H BTB22H BTB2H BTB24H BTB2H BTB26H BTB27H BTB28H BTB0H BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB Sprockets with H suffix have hardened teeth. E-0

131 Metric Sprockets 0.70 INCH (9.0mm) PITCH DUPLEX ISO 2B-2 0. mm mm mm mm.428 CHAIN DATA: BS 228/ ISO 2B-2 PITCH: 9.0mm (0.70 in.) ROLLER DIAMETER: 2.07mm (0.47 in.) ROLLER WIDTH:.68mm (0.460 in.) TENSILE: 900 kilos (,000 lbs.) METRIC 60-2 Length Thru TYPE B Length Thru TYPE C Duplex-Type B/C Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2C D2C D2C D2C D2C D2C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-

132 Metric Sprockets ISO 2B-2 METRIC INCH (9.0mm) PITCH DUPLEX 0. mm mm.94 C C L TYPE B L TYPE C CHAIN DATA: BS 228/ ISO 2B-2 PITCH: 9.0mm (0.70 in.) ROLLER DIAMETER: 2.07mm (0.47 in.) ROLLER WIDTH:.68mm (0.460 in.) TENSILE: 900 kilos (000 lbs.) Duplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2BTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB D2CTB E-2

133 Metric Sprockets ISO 2B- METRIC INCH (9.0mm) PITCH TRIPLEX mm mm 0.87 mm mm.428 CHAIN DATA: BS 228/ ISO 2B- PITCH: 9.0mm (0.70 in.) ROLLER DIAMETER: 2.07mm (0.47 in.) ROLLER WIDTH:.68mm (0.460 in.) TENSILE: 880 kilos (9,00 lbs.) Length Thru TYPE B Length Thru TYPE C Triplex-Type B/C Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2B E2C E2C E2C E2C E2C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-

134 Metric Sprockets.00 INCH (2.40mm) PITCH SIMPLEX Simplex-Type B/C Steel Simplex-Type A Steel No. Pitch Catalog Bore Weight Catalog Bore Weight Teeth Diameter Number Stock Max. Thru (Approx.) Number Stock (Approx.) MM MM MM MM MM Kilos MM Kilos B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A C A C A C A C A C A C A C A C A C A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. ISO 6B- METRIC 80 CHAIN DATA: BS 228/ ISO 6B- PITCH: 2.40mm (.00 in.) ROLLER DIAMETER:.88mm (0.62 in.) ROLLER WIDTH: 7.02mm (0.670 in.) TENSILE: 40 kilos (9,00 lbs.) Length Thru 6.8mm mm.67 Length Thru TYPE A 6.8mm.67 TYPE B TYPE C E-4

135 Metric Sprockets ISO 6B- METRIC mm INCH (2.40mm) PITCH SIMPLEX CHAIN DATA: BS 228/ ISO 6B- PITCH: 2.40mm (.00 in.) ROLLER DIAMETER:.88mm (0.62 in.) ROLLER WIDTH: 7.02mm (0.670 in.) TENSILE: 40 KILOS (9,00 lbs.) C L TYPE B Simplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos BTB0H BTBH BTB2H BTBH BTB4H BTBH BTB6H BTB7H BTB8H BTB9H BTB20H BTB2H BTB22H BTB2H BTB24H BTB2H BTB26H BTB27H BTB28H BTB0H BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB Sprockets with H suffix have hardened teeth. E-

136 Metric Sprockets ISO 6B-2 METRIC mm mm mm mm INCH (2.40mm) PITCH DUPLEX CHAIN DATA: BS 228/ ISO 6B-2 PITCH: 2.40mm (.00 in.) ROLLER DIAMETER:.88mm (0.62 in.) ROLLER WIDTH: 7.02mm (0.670 in.) TENSILE: 8620 kilos (9,000 lbs.) Length Thru TYPE B Length Thru TYPE C Duplex-Type B/C Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos 90.6 D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6B D6C D6C D6C D6C D6C D6C D6C D6C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-6

137 Metric Sprockets.00 INCH (2.40mm) PITCH DUPLEX ISO 6B-2 METRIC mm mm mm.878 C C L L L TYPE A TYPE B TYPE C CHAIN DATA: BS 228/ ISO 6B-2 PITCH: 2.40mm (.00 in.) ROLLER DIAMETER:.88mm (0.62 in.) ROLLER WIDTH: 7.02mm (0.670 in.) TENSILE: 8620 kilos (9,000 lbs.) Duplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos 06.4 D6ATB D6ATB D6ATB D6ATB D6ATB D6ATB D6ATB D6BTB D6BTB D6BTB D6BTB D6BTB D6BTB D6BTB D6BTB D6BTB D6BTB D6CTB D6CTB D6CTB D6CTB D6CTB D6CTB D6CTB D6CTB Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-7

138 Metric Sprockets.00 INCH (2.40mm) PITCH TRIPLEX ISO 6B mm..82mm mm..82mm.62 METRIC 80- CHAIN DATA: BS 228/ ISO 6B- PITCH: 2.40mm (.00 in.) ROLLER DIAMETER:.88mm (0.62 in.) ROLLER WIDTH: 7.02mm (0.670 in.) TENSILE: 2,90 kilos (28,00 lbs.) Length Thru TYPE B Length Thru TYPE C Triplex-Type B/C Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos 90.6 E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6B E6C E6C E6C E6C E6C E6C E6C E6C E6C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-8

139 Metric Sprockets ISO 20B- METRIC 00 CHAIN DATA: BS 228/7 ISO 20B- PITCH:.7mm (.20 in.) ROLLER DIAMETER: 9.0mm (0.70 in.) ROLLER WIDTH: 9.6mm (0.770 in.) TENSILE: 680 kilos (4,00 lbs.) 8.9 mm.72 Length Thru TYPE A 8.9 mm.72 Length Thru 8.9 mm.72 TYPE B TYPE C Simplex-Type B/C Steel.2 INCH (.7mm) PITCH SIMPLEX Simplex-Type A Steel No. Pitch Catalog Bore Weight Catalog Bore Weight Teeth Diameter Number Stock Max. Thru (Approx.) Number Stock (Approx.) MM MM MM MM MM Kilos MM Kilos B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A C A C A C A C A C A C A C A C A C A C A C A C A C A C A C A C A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-9

140 Metric Sprockets.2 INCH (.7mm) PITCH SIMPLEX ISO 20B- 8.9mm mm.72 METRIC 00 CHAIN DATA: BS 228/7 ISO 20B PITCH:.7mm (.20 in.) ROLLER DIAMETER: 9.0mm (0.70 in.) ROLLER WIDTH: 9.6mm (0.770 in.) TENSILE: 680 kilos (4,00 lbs.) C C L TYPE B L TYPE C Simplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos BTBH BTB2H BTBH BTB4H BTBH BTB6H BTB7H BTB8H BTB9H BTB20H BTB2H BTB22H BTB2H BTB24H BTB2H BTB26H BTB27H BTB0H BTB BTB BTB BTB BTB BTB BTB BTB BTB BTB CTB CTB CTB CTB CTB CTB CTB Sprockets with H suffix have hardened teeth. E-40

141 Metric Sprockets ISO 20B-2 METRIC INCH (.7mm) PITCH DUPLEX 4.64mm mm mm mm.76 CHAIN DATA: BS 228/7 ISO 20B-2 PITCH:.7mm (.20 in.) ROLLER DIAMETER: 9.0mm (0.70 in.) ROLLER WIDTH: 9.6mm (0.770 in.) TENSILE:,60 kilos (29,000 lbs.) Length Thru TYPE B Length Thru TYPE C Duplex-Type B/C Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20B D20C D20C D20C D20C D20C D20C D20C D20C D20C D20C D20C D20C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-4

142 Metric Sprockets.2 INCH (.7mm) PITCH TRIPLEX ISO 20B- METRIC mm mm mm mm.76 CHAIN DATA: BS 228/7 ISO 20B- PITCH:.7mm (.20 in.) ROLLER DIAMETER: 9.0mm (0.70 in.) ROLLER WIDTH: 9.6mm (0.770 in.) TENSILE: 9,740 kilos (4,00 lbs.) Length Thru TYPE B Length Thru TYPE C Triplex-Type B/C Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20B E20C E20C E20C E20C E20C E20C E20C E20C E20C E20C E20C E20C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-42

143 Metric Sprockets ISO 24B- METRIC 20.0 INCH (8.0mm) PITCH SIMPLEX CHAIN DATA: BS 228/8 ISO 24B- PITCH: 8.0mm (.0 in.) ROLLER DIAMETER: 2.40mm (.00 in.) ROLLER WIDTH: 2.40mm (.00 in.) TENSILE: 9980 kilos (22,000 lbs.) Length Thru 24.mm mm mm.90 TYPE A TYPE B Simplex-Type B/C Steel Simplex-Type A Steel No. Pitch Catalog Bore Weight Catalog Bore Weight Teeth Diameter Number Stock Max. Thru (Approx.) Number Stock (Approx.) MM MM MM MM MM Kilos MM Kilos B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A C A C A C A C A C A C A C A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Length Thru TYPE C E-4

144 Metric Sprockets.0 INCH (8.0mm) PITCH SIMPLEX ISO 24B- 24.mm mm.90 METRIC 20 CHAIN DATA: BS 228/8 ISO 24B- PITCH: 8.0mm (.0 in.) ROLLER DIAMETER: 2.40mm (.00 in.) ROLLER WIDTH: 2.40mm (.00 in.) TENSILE: 9980 kilos (22,000 lbs.) C C L TYPE B L TYPE C Simplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos.2 24BTBH BTB2H BTBH BTB4H BTBH BTB6H BTB7H BTB8H BTB9H BTB20H BTB2H BTB22H BTB2H BTB24H BTB2H BTB26H BTB27H BTB28H BTB29H BTB0H BTB BTB CTB CTB CTB CTB CTB CTB CTB CTB CTB CTB CTB CTB CTB CTB Sprockets with H suffix have hardened teeth. E-44

145 Metric Sprockets ISO 24B-2 METRIC INCH (8.0mm) PITCH DUPLEX 7.98mm mm mm mm.90 CHAIN DATA: BS 228/8 ISO 24B-2 PITCH: 8.0mm (.0 in.) ROLLER DIAMETER: 2.40mm (.00 in.) ROLLER WIDTH: 2.40mm (.00 in.) TENSILE: 9,960 kilos (44,000 lbs.) Length Thru TYPE B Length Thru TYPE C Duplex-Type B/C Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos.2 D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24B D24C D24C D24C D24C D24C D24C D24C D24C D24C D24C D24C D24C D24C D24C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-4

146 Metric Sprockets.7 INCH (44.4mm) PITCH SIMPLEX CHAIN DATA: BS 228/20 ISO 28B- PITCH: 44.4mm (.7 in.) ROLLER DIAMETER: 27.94mm (.0 in.) ROLLER WIDTH: 0.99mm (.22 in.) TENSILE:,60 kilos (29,000 lbs.) ISO 28B- METRIC 40 Simplex-Type B/C Steel Simplex-Type A Steel No. Pitch Catalog Bore Weight Catalog Bore Weight Teeth Diameter Number Stock Max. Thru (Approx.) Number Stock (Approx.) MM MM MM MM MM Kilos MM Kilos B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A C A C A C A C A C A C A C A C A C A C A C A C A C A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat mm mm.9 TYPE A Length Thru TYPE B 29.44mm.9 E-46 Length Thru TYPE C

147 Metric Sprockets ISO 28B- METRIC mm.9.7 INCH (44.4mm) PITCH SIMPLEX 29.44mm.9 CHAIN DATA: BS 228/20 ISO 28B- PITCH: 44.4mm (.7 in.) ROLLER DIAMETER: 27.94mm (.0 in.) ROLLER WIDTH: 0.99mm (.22 in.) TENSILE:,60 kilos (29,000 lbs.) C C L TYPE B L TYPE C Simplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos BTBH BTB2H BTBH BTB4H BTBH BTB6H BTB7H BTB8H BTB9H BTB20H BTB2H BTB22H BTB2H BTB24H BTB2H BTB26H BTB BTB BTB BTB BTB CTB CTB CTB CTB CTB CTB CTB CTB CTB CTB CTB CTB CTB E-47

148 Metric Sprockets.7 INCH (44.4mm) PITCH DUPLEX ISO 28B mm mm. 88.9mm mm. METRIC 40-2 CHAIN DATA: BS 228/20 ISO 28B-2 PITCH: 44.4mm (.7 in.) ROLLER DIAMETER: 27.94mm (.0 in.) ROLLER WIDTH: 0.99mm (.22 in.) TENSILE: 26,20 kilos (8,000 lbs.) Length Thru TYPE B Length Thru TYPE C Duplex-Type B/C Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos 7.77 D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28B D28C D28C D28C D28C D28C D28C D28C D28C D28C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-48

149 Metric Sprockets ISO 2B- METRIC INCH (0.80mm) PITCH SIMPLEX CHAIN DATA: BS 228/22 ISO 2B- PITCH: 0.80mm(2.00 in.) ROLLER DIAMETER: 29.2mm (. in.) ROLLER WIDTH: 0.99mm (.22 in.) TENSILE: 7,240 kilos (8,000 lbs.) 29.44mm.9 TYPE A 29.44mm.9 Simplex-Type B/C Steel Simplex-Type A Steel No. Pitch Catalog Bore Weight Catalog Bore Weight Teeth Diameter Number Stock Max. Thru (Approx.) Number Stock (Approx.) MM MM MM MM MM Kilos MM Kilos 80. 2B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A C A C A C A C A C A C A C A C A C A C A Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. Length Thru TYPE B 29.44mm.9 Length Thru TYPE C E-49

150 Metric Sprockets 2.00 INCH (0.80mm) PITCH SIMPLEX ISO 2B mm mm.9 METRIC 60 CHAIN DATA: BS 228/22 ISO 2B- PITCH: 0.80mm (2.00 in.) ROLLER DIAMETER: 29.2mm (. in.) ROLLER WIDTH: 0.99mm (.22 in.) TENSILE: 7,240 kilos (8,000 lbs.) C C L TYPE B L TYPE C Simplex-Taper Bushed Steel Pitch Bore Dimension Weight No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM Kilos Kilos 80. 2BTBH BTB2H BTBH BTB4H BTBH BTB6H BTB7H BTB8H BTB9H BTB20H BTB2H BTB22H BTB2H BTB24H BTB2H BTB26H BTB BTB BTB BTB BTB CTB CTB CTB CTB CTB CTB CTB CTB E-0

151 Metric Sprockets ISO 2B-2 METRIC INCH (0.80mm) PITCH DUPLEX 87.8mm mm. 87.8mm mm. CHAIN DATA: BS 228/22 ISO 2B-2 PITCH: 0.80mm (2.00 in.) ROLLER DIAMETER: 29.2mm (. in.) ROLLER WIDTH: 0.99mm (.22 in.) TENSILE: 4,480 kilos (76,000 lbs.) Length Thru TYPE B Length Thru TYPE C Duplex-Type B/C Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru (Approx.) Teeth MM Number MM MM MM MM Kilos 80. D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2B D2C D2C D2C D2C D2C D2C D2C Maximum bores shown will accommodate standard keyseat and setscrew over keyseat. Slightly larger bores are possible with no keyseat, shallow keyseat, or setscrew at angle to keyseat. E-

152 Engineering SPROCKET ENGINEERING DATA ROLLER CHAIN DIMENSIONS SPROCKET TOOTH DIMENSIONS MAXIMUM HUB RECOMMENDATIONS APPLICATION AND SELECTION HARDENING CHAIN LENGTH CALCULATION SPEED RATIOS SPROCKET DIAMETERS HORSEPOWER RATINGS American sprocket manufacturers have adopted 4 specific types of sprocket construction styles as American Standards. In addition to the standard sprockets, special sprockets may be available in the same styles. Style A - Flat sprocket with no hub extension either side. Style B - Sprocket with hub extension one side. Style C - Sprocket with hub extension both sides. Style D - Sprocket with a detachable bolt on hub attached to a plate. LTB Pitch Outside Diam Pitch Length Thru Single Type A Single Type B Single Type C Single Type D E-2

153 Sprocket Nomenclature Multiple Strand Sprockets - Listed using a letter prefix starting with the letter D for Double Strand, E for Triple Strand, and F for Quadruple, etc. They also have the same hub configuration letter designation listed on previous page. In addition to the four specific types, sprockets may also be made in various other styles. Double Triple Five common styles are: O.D. QD The QD (quick detachable) sprocket; here a tapered bushing is bolted into the bore machined in the sprocket. This bushing, when inserted into the sprocket, compresses onto the shaft providing a tight grip. MST The MST (Martin Split Taper ) is another style of bushed sprocket. The bushing is similar to the QD style except it has an external key that fits into the driven product. HOD Bore TB The TB (taper bushed) sprocket is another style of an interchangeable bushed sprocket, which provides a positive grip on a driven shaft. Length Thru Split A split type sprocket is used in place of solid type to allow quick installation without disruption of shaft and alignment. Shear Pin Sprocket A shear pin type hub is bolted to a sprocket providing an overload device; as sprocket torque ratings are exceeded the shear device disengages sprocket from drive. E-

154 Sprocket Nomenclature Sprocket nomenclatures provide the chain pitch written to the left of the hub style code letter followed by the number of teeth in the sprocket. If the sprocket is to be multiple strand, the prefix code letter is added to the beginning of the part number. A suffix of H is added if the teeth are to be heat treated. If the sprocket is to be bored for QD, Taper Bushed or MST, the center hub letter is changed. For QD and MST styles the letter designation of the bushing is used in lieu of the hub style code. If a taper bushing is to be used, the two letters TB are added behind the hub code letter. In some instances, the material a sprocket is to be manufactured from will be added into the part number as a suffix. For example: SS - Stainless Steel Material NM- Non-Metallic BR - Brass or Bronze Material CD - Cadmium Plated Zi - Zinc Plated Ni - Nickel Plated CH - Chrome Plated If the part is to be used with a shear pin device, the center hub style letter is substituted with an SP. Most manufacturers of sprockets conform to the ANSI (American Standards Institute) and conforms to the Type II tooth form as given in the standard B It is not necessary to show detailed tooth information on sprocket drawings, just specify ANSI standard tooth form. Face Width Caliper Diameter Bottom Bore Pitch Outside Maximum and Groove LTB E-4

155 Sprocket Dimensional Specifications Sprocket Nomenclature Bottom Diameter - The diameter of a circle tangent to the bottoms of the (B.D.) tooth spaces. Caliper Diameter - Since the bottom diameter of a sprocket with odd number of teeth cannot be measured directly, caliper diameters are the measurement across the tooth spaces nearly opposite. Pitch Diameter - The diameter across to the pitch circle which is the circle (P.D.) followed by the centers of the chain pins as the sprocket revolves in mesh with the chain. PD = PITCH SIN (80/Nt) Outside Diameter - The measurement from the tip of the sprocket tooth (O.D.) across to the corresponding point directly across the sprocket. It is comparatively unimportant as the tooth length is not vital to proper meshing with the chain. The outside diameter may vary depending on type of cutter used. OD = (Pitch) (.6 + COT [80 / Nt]) Diameter - That distance across the hub from one side to another. (HOD) This diameter must not exceed the calculated diameter of the inside of the chain side bars. Maximum Sprocket - Maximum Sprocket Bore is determined by the required Bore hub wall thickness for proper strength. Allowance must be made for keyway and setscrews. Face Width - Face width is limited in its maximum dimension to allow proper clearance to provide for chain engagement and disengagement. The minimum width is limited to provide the proper strength to carry the imposed loads. Length Thru Bore - Length Thru Bore (or L.T.B.) must be sufficient to allow (LTB) a long enough key to withstand the torque transmitted by the shaft. This also assures stability of the sprocket on the shaft. E-

156 Roller Chain Dimensions Inside Cottered Riveted Average ANSI Roller Roller Link Plate Chain Chain Tensile Number Width Diam. Height Width* Width* Strength STANDARD SERIES CHAIN *Dimensions are across pins. Inside Cottered Riveted Average ANSI Roller Roller Link Plate Chain Chain Tensile Number Width Diam. Height Width* Width* Strength STANDARD SERIES CHAIN *Dimensions are across pins. STANDARD KEYWAYS AND SETSCREWS Diameter Keyway Diameter Keyway of Shaft Width x Depth Setscrew of Shaft Width x Depth x x 2 4 x 6 x 2 x 6 2 x * size may require smaller setscrews in some instances. x 6 4 x 7 x x x 2* x 4 Setscrew * * STANDARD BORE TOLERANCES and Less to to & up Bores with closer tolerances will be supplied at a slight increase in price. E-6

157 Sprocket Tooth Dimensions Sprocket Tooth Dimensions TMR SINGLE HOT ROLLED STEEL PLATE t t2 M7 M6 M M4 M M M2 M2 K K K K K K K T4 PITCH LINE SINGLE DOUBLE AND TRIPLE QUADRUPLE AND OTHER MULTIPLES Chain A.S.A. Data For All Sprockets Single For 4 or more Strands Minus Double and Triple Roller Strand Tolerance Strand on t Chain Pitch Width Roller t and and M No. P W Diameter T HR t 2 M 2 M t 4 M 2 M M 4 M M 6 M 8 M 0 M 2 M 6 K Machined Dimensions in Inches STANDARD SERIES ROLLER CHAIN HEAVY SERIES CHAIN Minus Tolerance on T HR 60H H H H H H H H = Not made in multiple strands. E-7

158 Maximum Dimensions AMERICAN STANDARD NO. 2 Recommended Max. and Bore Sizes STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x 6 4 AMERICAN STANDARD NO. STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x AMERICAN STANDARD NO. 4 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x AMERICAN STANDARD NO. 40 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x AMERICAN STANDARD NO. 0 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x AMERICAN STANDARD NO. 60 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x E-8

159 Maximum Dimensions Recommended Max. and Bore Sizes AMERICAN STANDARD NO. 80 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x AMERICAN STANDARD NO. 00 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x AMERICAN STANDARD NO. 20 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x AMERICAN STANDARD NO. 40 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x AMERICAN STANDARD NO. 60 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x AMERICAN STANDARD NO. 200 STD. KEYWAY (Am. Std.) and SETSCREW No. of Max. Max. Max. No. of Max. Max. Max. No. of Max. Max. Max. Min. added to bore for Teeth RPM Bore Teeth RPM Bore Teeth RPM Bore Diam. adequate hub wall Steel Sprockets of Diameter Keyway Set- Setscrew Setscrew of Shaft Width x Depth screw over Key not over Key x x x x x x x E-9

160 Sprocket Selection Application Data and Selection Procedure How to Check Horsepower Rating of Installed Drive. Determine the types of driving and driven loads and obtain the proper service factor, as explained in Steps and 2 under Selection Procedures. 2. Find the multiple strand factor, for the number of chain strands in the drive, from the Multiple Strand Factor Table, in Horsepower Tables (Page E-86 thru E-92).. From the horsepower rating table for the chain pitch, read the figure under the RPM of the small sprocket and to the right of the column giving number of teeth in the small sprocket. 4. The horsepower this drive can properly transmit is as follows: HORSEPOWER Rating Table Multiple Strand DRIVE CAN = ( Horsepower ) X ( Factor ) TRANSMIT Service Factor Center Distance The following general principals should be applied in determining shaft center distances. The center distance must always be greater than one-half the sum of the sprocket outside diameters to avoid interference of teeth. When the speed ratio is greater than to, the center distance should be not less than the sum of the sprocket diameters. Chain wrap should be at least 20 of the small sprocket onethird of the teeth meshing. Longer center distances give greater chain wrap. For average applications a center distance of 0 to 0 pitches of chain is recommended for best results. For pulsating loads, a center distance of 20 to 0 pitches may be desirable. For center distances of 80 pitches or greater, idlers or chain guides should be used to support the chain. Slightly adjustable center distances will provide chain tension as the chain elongates with wear. Alignment Accurate alignment of shafts and sprocket tooth faces provide uniform distribution of the load across the entire chain width and contributes substantially to optimum drive life. Shafting, bearings, and foundations should be suitable to maintain the initial alignment. Periodic maintenance should include an inspection of alignment to insure optimum chain life. Design Horsepower When making drive selections consideration is given to the loads imposed on the chain. Service factors based on the type of equipment to be driven (Table I, Page E62) and the type of input power (Table II, Page E62) are used to compensate for these loads. Horsepower Rating Tables The horsepower ratings in this catalog apply to lubricated single pitch, single strand precision roller chains, both standard and double pitch roller chain. The ratings reflect a service factor of, a chain length of approximately 00 pitches, use of recommended lubrication methods, and a drive arrangement where two aligned sprockets are mounted on parallel horizontal shafts. The horsepower ratings relate to the speed of the smaller sprocket and drive selections are made on this basis, whether the drive is speed reducing or speed increasing. For ratings of multiple strand roller chains refer to Multiple Strand Factor in Horsepower Tables. Lubrication It has been shown that a separate wedge of fluid lubricant is formed in operating chain joints much like that formed in journal bearings. Therefore, fluid lubricant must be applied to assure an oil supply to the joints and minimize metal to metal contact. Lubrication, if supplied in sufficient volume, also provides effective cooling and impact damping at the higher speeds. For this reason, it is important that the lubrication recommendations be followed. The horsepower rating tables shown throughout this catalog, apply only to drives lubricated in the manner specified in the tables. Chain drives should be protected against dirt and moisture and the oil supply kept free of contamination. Periodic oil change is desirable. A good grade of non-detergent petroleum base oil is recommended. Heavy oils and grease are generally too stiff to enter and fill the chain joints. E-60

161 Application Data and Selection Procedure Sprocket Selection Types of Lubrication There are four basic types of lubrication for chain drives. The recommended type shown in the horsepower rating tables is influenced by chain speed and the amount of power transmitted. These are minimum lubrication requirements and the use of a better type (for example, Type C instead of Type B) is acceptable and may be beneficial. Chain life can vary appreciably depending upon the way the drive is lubricated. The better the lubrication, the longer the chain and sprocket life. For this reason, it is important that the lubrication recommendations be followed when using the rating tables given in this catalog. Lubrication TYPE A Manual Lubrication. Oil applied periodically with brush or spout can. TYPE B Oil Bath or Oil Slinger. Oil level maintained in casing at predetermined height. TYPE C Oil Stream. Oil supplied by circulating pump inside chain loop on lower span. NOTE: Drip Lubrication. Oil applied between link plate edges from a drip lubricator and should be used in clean environments only. Most roller chain drive applications allow considerable latitude in the selection of sprocket sizes and chain pitch, although usually one combination will best fulfill the requirements of power, speed, space limitations and economy. Chain and Sprocket Selection Procedure Steps:. Determine class of driven load. 2. Select service factor.. Calculate design horsepower. 4. Select chain pitch.. Select number of teeth in small sprocket. 6. Determine number of teeth in larger sprocket. 7. Determine center distance. 8. Calculate chain length. Drive Positions Selection of Roller Chain Drives The following information is necessary for the proper selection and design of Roller Chain Drives:. Type of input horsepower (electrical motor, internal combustion engine.) 2. Type of equipment to be driven.. Horsepower to be transmitted. 4. Full load speed of the fastest running shaft. (R.P.M.). Desired speed of the slow speed shaft. (R.P.M.) 6. Diameters of the driving and driven shafts. 7. Center to center distance of shafts. 8. Position of drive and space limitations. 9. Method of lubrication. 0. Conditions of drive, steady or fluctuating load, hours of operation, lubrication. Good Avoid Except with Adjustable Centers Permissible Avoid E-6

162 Sprocket Selection Application Data and Selection Procedure Step I Step III Service Classification Table I Uniform Load Agitators, Liquid Generators Blowers, Centrifugal Line Shafts, Even Load Conveyors, Even Load Machines, Even Load, Elevators, Even Load Non-reversing Fans, Centrifugal Pumps, Centrifugal Moderate Shock Load Beaters Laundry - Washers Compressors, and Tumblers Centrifugal Line Shafts, Uneven Load Conveyors, Uneven Machines, Pulsating Load Load, Non-reversing Elevators, Uneven Load Pumps, Reciprocating, Triplex Grinders, Pulp Screens, Rotary, Even Load Kilns and Dryers Woodworking Machinery Heavy Shock Load Brick Machines Mills, Hammer, Rolling Compressors or Drawing Reciprocating Presses Crushers Pumps, Reciprocating, Machines, Reversing Simplex or Duplex or Impact Loads Step II Service Factor Table II TYPE OF INPUT POWER Internal Electric Internal SERVICE Combustion Motor Combustion CLASSIFICATION Engine with or Engine with Hydraulic Turbine Mechanical Drive Drive Uniform Load Moderate Shock Load.2..4 Heavy Shock Load.4..7 Unfavorable Operating Conditions which may be present should be compensated for by adding.2 to the Service Factor for each unfavorable condition. Some of these conditions are listed below:. Multiple Shafts add.2 for each additional shaft. 2. Excessive speed ratios exceeding 7 to.. Heavy starting loads with frequent starts and stops. 4. Conditions of high temperatures, unusually abrasive conditions, or circumstances decreasing lubrication effectiveness or not allowing the use of recommended lubrication procedures. Determination of Design Horsepower Determine the design horsepower of the required drive using the following procedure.. Determine Service Classification Table I. Unlisted equipment may be classified by its similarity to a listed type. 2. Using Service Classification and Frequency of Service, select the Service Factor Table II. Increase the Service Factor by adding compensation for unfavorable operating conditions.. Multiply the normal operating horsepower of the drive by the Compensated Service Factor to obtain Service Horsepower. Step IV Drive Selection Using Design Horsepower computed above, use Trial Selection Chart on page E84-E8, or enter tables of Horsepower Ratings shown on pages E84 thru E8. Select the smallest pitch chain which has the required horsepower rating for a pinion sprocket turning at the specified RPM. Check to be certain the selected sprocket has a listed maximum bore large enough to accommodate the specified shaft. The tables on pages E-8 thru E- 9 gives maximum bores for the usual range of driving sprockets. If the Design Horsepower at the required RPM is greater than the horsepower rating of the largest pitch chain which can operate at that speed, a multiple chain drive should be considered for the application. Selection of drives to operate at speeds somewhat below the maximum rating will increase the life of the drive and quietness of operation. Step V Driving Sprocket In selecting the driving sprocket 7 teeth are recommended as a minimum although teeth are quite often used, and as low as 7 teeth can be cut. When the maximum bore of the 7 tooth sprocket will not accomodate the driving shaft, it is necessary to go to a sprocket with a greater number of teeth. Hardened teeth are recommended for sprockets with 2 teeth or less. E-62

163 Application Data and Selection Procedure Sprocket Selection Step VI Driven Sprocket (Ratio) The number of teeth selected for the driven sprocket depends upon the driving sprocket chosen and the desired speed of the driven shaft. When space limitations are a factor, the diameter of the driven sprocket sometimes determines the final selection of drive. The recommended maximum speed ratio is 7 to, although higher ratios are occasionally used. It is usually better design, however, for large reductions to use a double reduction drive. Select the driven sprocket size from the Speed Ratio Table on page E-70 using the required speed ratio and size of driver sprocket. Step VII Shaft Centers May be calculated from the formula on page E-68 where the sprocket diameters and chain length are known. On many applications the motor base is adjustable, allowing for slight changes in shaft centers. On long centers some form of chain adjuster or take-up is recommended. Step VIII Chain Length On page E-68 is shown a simple method of computing the length of chain necessary for a drive with given sprocket dimensions and center to center distance of shafts. (See chart on page E-69 for length in ft.) Chain Drive Design Example To select a roller chain drive from a 0 HP electric motor ( '' shaft) 200 RPM (0 under load) to a wood working machine shaft at 00 RPM on 0'' centers. Drive conditions moderate pulsating load, good lubrication, 0 hour day operation.. Service class moderate shock load (Table I). 2. Service factor. (Table II).. Design HP. x 0 = DHP. 4. Selection The Horsepower Ratings on page E-84 show that either of the following combinations may be used. No. D40-9 Tooth Smoothest in operation No. 0-8 Tooth Lower drive cost For our purpose we select No. 0 chain and checking the bore find that the shaft can be accommodated with a stock bored to size sprocket. The driven sprocket is found as follows: No. Teeth Driven Sprocket = 8 x 0 (Ratio) = or 69 Teeth 00 Since 69 teeth is not a stock size we select 70 teeth. The chain length is calculated as shown on page E-69 and is 42 pitches. Overhung Load When a Sprocket is mounted on a reducer shaft, a calculation should be made to determine the overhung load in pounds using formula on page L-2 in general engineering section. E-6

164 Sprocket Engineering Engineering Data & Design Horsepower equals,000 foot pounds per minute, or 0 foot pounds per second. In terms of chain load and speed. HP = or HP = Working Load x Ft. Per Min.,000 Working Load x T x P x R.P.M. 96,000 Where T = number of sprocket teeth P = chain pitch Chain Working Load when the horsepower input is known and the chain working load is desired, this can be calculated as follows: Working Load = or = HP x,000 Ft. Per Min. HP x 96,000 T x P x R.P.M. Chain Speed can be determined from the following formula: Chain Speed = T x R.P.M. (Ft. Per Min.) K where T = number of sprocket teeth Constant K (Pitches of Chain Per Foot) PITCH K Approx. Wt./Ft. of Standard Roller Chain Number Single Double Triple Quadruple Factor of Safety is determined as follows: F.S. = Chain Ultimate Strength Chain Working Load Shaft Torque Ordinarily is greater for the driven shaft than for the driving shaft due to the difference in sprocket sizes and R.P.M. Torque is usually expressed in inch pounds. Torque (Driving Shaft) Torque (Driven Shaft) = HP x 6,000 R.P.M = Working Load R Where a crank arm is used the load transmitted by the arm can be determined as follows: Crank arm Load = Driven Shaft Torque r or = ChainiWorking Load x R r Catenary Tension imposed by reason of the weight of chain can be approximated as follows: W x L Catenary Tension = 2 8 x S + (W x S) where W = weight of chain (lbs. per ft.) S = chain sag (feet) = 2% to % of shaft centers approx. L = Shaft centers in feet. E-64

165 Sprocket Engineering Engineering Data & Design Conveyor Chains Chains used in the design of conveyors should be selected on the basis of the chain pull imposed by the application and the permissible or maximum working load of the chain. In some instances a larger pitch chain than is necessary may be selected due to the desired attachment spacing, and the effect in this case would be to increase the life of the conveyor. HORIZONTAL CONVEYORS Chain Pull The force or pull required to move a conveyor includes the pull necessary to move the weight of chain and material and the frictional resistance of the chain parts on the runways. The following formulas may be used in calculating the total chain pull. The same formula applies in the case of single or parallel strand chain conveyors, but in the case of parallel strand conveyors, the pull per chain is one-half of the figure calculated from the formula. INCLINED CONVEYORS Total pull of chains = f H (W + P) NOTE: When lower strand of conveyor drags on runway above formula becomes f H (W + 2P). VERTICAL CONVEYORS Total pull of chains = V(W+P) H (feet) = Horizontal projection of conveyor length. V (feet) = Vertical projection of conveyor length. W (pounds) = Weight of material handled per foot of conveyor length. P (pounds) = Weight per foot of all moving conveyor parts (single or two strand). f = Coefficient of friction of chain on runway. Total pull of chains = f H (W + P) + V (W + P) NOTE: When lower strand of conveyor drags on runway the factor P (f H V) should be added to above formula unless V is greater than f H. Value of Coefficient F Sliding steel on iron or steel...2% Rolling friction...% (If material or other than the usual chain parts are in contact with the runway, the coefficient should be increased to compensate for the added resistance.) E-6

166 Sprocket Engineering Chain Drive Selection Step : Prime Driver: Driven Comp: Type & Description Rated - H.P. R.P.M. Type & Description R.P.M. Hours/Day Center Distance: Maximum Minimum Step 2: Service Classification (Step I Page E-62) Step : Service Factor (Include additions to basic factor) (Step II Page E-62) Step 4: Determine Design H.P = H.P. Service Factor H.P. Design Step : Speed Ratio = RPM Faster Shaft RPM Slower Shaft Ratio (E-72) Step 6: From selector chart, select proper chain pitch & driver sprocket. (check Martin Catalog page E-84) A B Chain Pitch Driver Sprocket Maximum Bore (Pages E-6 thru E-2) Step 7: From ratio chart, select proper driven sprocket. C Driven Sprocket Maximum Bore Step 8: Check manufacturer s catalog for maximum bore recommended & final stock selection. (Pages E-6 thru E-2) Step 9: Review Horsepower table for type of lubrication required. TYPE: A B C (Pages E-6 and E-86 thru E-92) OR TYPE: 2 (Pages E-9 and E-92) Step 0: Center Dist. (inches) Chain Pitch Center Dist. (pitches) Step : Formula for chain length = 2C + N+n + A 2 C Where: E-66 C = Center Dist. in pitches N = Number of teeth in Driven Sprocket n = Number of teeth in Driver Sprocket A = Value from table tabulated for N - n values

167 Sprocket Hardening Brinell, Rockwell and Scleroscope Hardness Numbers with Corresponding Tensile Strength Brinell Rockwell C Scleroscope Tensile Strength 0 MM Ball 20 Cone Shore 000 Lb.,000 Kg. 0 Kg. Model C Per Sq. In Rockwell B 6 Ball 00 Kg Material All Martin stock sprockets are made of quality steel poured to our specifications. Bar size sprockets normally include sizes up to 7 or 7 2 in diameter type B, BS, QD, TB single, double & triple width. And can easily be electrical induction or flame hardened to Rockwell C 40 to 0. Plate sprockets normally include sizes 7 2 in diameter and larger type B, BS, C, QD, TB single, double, & triple width fabricated and type A all diameters. This material would have to 40 points of carbon and can be induction or flame hardened to Rockwell C 0 to 4. Degree of hardness obtainable and method depends on size of sprocket. Special quality steel can be used for large quantities or made-to-order sprockets if specified. Hardening Recommendations Hardened teeth substantially increases sprocket life and is recommended under conditions listed below:. Pinion or driver where the reduction is 4: or greater. 2. Slow speed drives (00 FPM or less).. Where safety factor is less than standard. 4. Unusual abrasive conditions. Degree of hardness this is governed by conditions prevailing each application for stock sprockets these general suggestions may be used as guide lines:. Rockwell C to 0 pinion or driver. 2. Rockwell C 2 to 40 larger diameter or driver sprockets. Induction or flame hardening will be used as best suited to the individual application. The diameter and pitch of the sprocket govern the method used. Caution should be used to avoid file hardness (Rockwell C 62 and above) as it is not recommended for sprockets due to brittleness. Depth of hardening should be limited so as to provide case only on the wear surfaces with a tough resilient core to absorb shock (see illustration tooth section). Note: Hardening cannot be accurately checked with a file stationary or portable hardness testers should be used for conclusive results. Hardened Zone Working Face 60 Max No Special Hardness Required Hardened Tooth Section Depth of Hardness Required E-67

168 Chain Drive Engineering Chain Length Calculation The following equation may be used to determine the chain length required for any two-sprocket drive. L = 2C + N + n +.0 (N n)02 or substituting A for.0 (N n)0 2, L = 2C + N + n + A 2 4C 4 2 C where: C = Shaft Center Distance in pitches, L = Length of chain in pitches, N = Number of teeth in larger sprocket, n = Number of teeth in smaller sprocket, π =.46, A = Value from table below tabulated for values of N-n, P = Pitch of chain. CENTER DISTANCE NOTE: The method described with above table of constants is sufficiently accurate for practically all commercial chain drives. When, however, a high degree of precision is necessary, especially if the drive is vertical, the following formula is useful in determining the exact centers for chain length already determined. Calculation of shaft centers The following formula is useful in determining the approximate centers in inches for chain lengths in pitches already determined. C = P { 2L N n + (2L N n) (N n) 2} 8 Values of A For Chain Length Calculation N-n A N-n A N-n A N-n A N-n A N-n A E-68

169 Chain Drive Engineering No. Of Pitches 2 Roller Chain Lengths CHAIN PITCH INCHES CHAIN LENGTHS FEET E-69

170 Chain Drive Engineering Speed Ratios For Sprocket Combinations Driver Sprocket Teeth DRIVEN SPROCKET TEETH Martin stock sprockets in pitches No. 40 through No. 00 are available with 8 to 60 teeth inclusive and in all common larger sizes for all pitches. E-70

171 Sprocket Diameters No. 2 4 Pitch No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Odd tooth bottom diameters equal pitch diameters minus.0. ROLLER CHAIN SPROCKET DIAMETERS E-7

172 No. Pitch Sprocket Diameters ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-72

173 Sprocket Diameters No Pitch ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-7

174 No. 0 Pitch Sprocket Diameters ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-74

175 Sprocket Diameters No Pitch ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-7

176 No. 80 Pitch Sprocket Diameters ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-76

177 Sprocket Diameters No Pitch ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-77

178 No Pitch Sprocket Diameters ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-78

179 Sprocket Diameters No Pitch ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-79

180 No Pitch Sprocket Diameters ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-80

181 Sprocket Diameters No Pitch ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-8

182 No Pitch Sprocket Diameters ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-82

183 Sprocket Diameters No. 240 Pitch ROLLER CHAIN SPROCKET DIAMETERS No. Pitch Outside Caliper No. Pitch Outside Caliper No. Pitch Outside Caliper Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter Teeth Diameter Diameter Diameter E-8

184 Horsepower Table E-84