ROLLER CHAIN SPROCKETS INDEX...E-1 E-2 MADE-TO-ORDER CAPABILITIES...E-3

Transcription

1 Index SECTION E ROLLER CHAIN SPROCKETS PRODUCT PAGE INDEX...E-1 E-2 MADE-TO-ORDER CAPABILITIES...E-3 SECTION I STANDARD SPROCKETS...E-4 E-112 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-10 Double Pitch Sprockets...E-11 E- Double Single Sprockets...(See Pitch Below) Sprockets, Stock...E-16 E-112 No " pitch...e-16 E-17 No " pitch...e-18 E-26 No " pitch...e-27 E-29 No " pitch...e-30 E-42 No " pitch...e-43 E-55 No " pitch...e-56 E-68 No. 80 1" pitch...e-69 E-81 No " pitch...e-82 E-91 No " pitch...e-92 E-97 No " pitch...e-98 E-102 No " pitch...e-103 E-107 No " pitch...e-108 No " pitch...e-109 E-111 No " pitch...e-112 SECTION II METRIC SPROCKETS...E-1 E-1 ISO - 06B-1, Metric " (9.525 mm) Pitch, Simplex...E-114 E-1 ISO - 06B-2, Metric " (9.525 mm) Pitch, Duplex...E-116 E-117 ISO - 06B-3, Metric " (9.525 mm) Pitch, Triplex...E-118 ISO - 08B-1, Metric " (12.70 mm) Pitch, Simplex...E-119 E-120 ISO - 08B-2, Metric " (12.70 mm) Pitch, Duplex...E-121 E-122 ISO - 08B-3, Metric " (12.70 mm) Pitch, Triplex...E-1 ISO - 10B-1, Metric " (.88 mm) Pitch, Simplex...E-124 E-125 ISO - 10B-2, Metric " (.88 mm) Pitch, Duplex...E-126 E-127 ISO - 10B-3, Metric " (.88 mm) Pitch, Triplex...E-128 ISO - 12B-1, Metric " (19.05 mm) Pitch, Simplex...E-129 E-0 ISO - 12B-2, Metric " (19.05 mm) Pitch, Duplex...E-1 E-2 ISO - 12B-3, Metric " (19.05 mm) Pitch, Triplex...E-3 ISO - 16B-1, Metric " (25.40 mm) Pitch, Simplex...E-4 E-5 E-1

2 Index SECTION E ROLLER CHAIN SPROCKETS PRODUCT PAGE SECTION II METRIC SPROCKETS (continued) ISO - 16B-2, Metric " (25.40mm) Pitch, Duplex...E-6 E-7 ISO - 16B-3, Metric " (25.40mm) Pitch, Triplex...E-8 ISO - 20B-1, Metric " (31.75mm) Pitch, Simplex...E-9 E-140 ISO - 20B-2, Metric " (31.75mm) Pitch, Duplex...E-141 ISO - 20B-3, Metric " (31.75mm) Pitch, Triplex...E-142 ISO - 24B-1, Metric " (38.10mm) Pitch, Simplex...E-143 E-144 ISO - 24B-2, Metric " (38.10mm) Pitch, Duplex...E-145 ISO - 28B-1, Metric " (44.45mm) Pitch, Simplex...E-146 E-147 ISO - 28B-2, Metric " (44.45mm) Pitch, Duplex...E-148 ISO - 32B-1, Metric " (50.80mm) Pitch, Simplex...E-149 E-0 ISO - 32B-2, Metric " (50.80mm) Pitch, Simplex...E-1 SECTION III ENGINEERING...E-2 E-192 Sprocket Nomenclature...E-3 E-5 Roller Chain Dimensions...E-6 Sprocket Tooth Dimensions...E-7 Maximum Bore and Size...E-8 E-9 Sprocket Selection...E-160 E-163 Sprocket Engineering...E-164 E-166 Hardening...E-167 Chain Drive Engineering...E-168 E-169 Roller Chain Lengths...E-169 Speed Ratios...E-170 Sprocket Diameters...E-171 E-183 Horsepower Ratings...E-184 E-192 E-2

3 Made-to-Order Sprockets Multi-Strand Oil Field Triple 160 Sprocket with Clutch Jaws Shaft Sprocket Quadruple 160 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-3

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-17 1" & UNDER SPH-17 SPA-17 SP SPH-18 SPA-18 SP SPH-19 SPA-19 SP SPH-20 SPA-20 SP SPH-21 SPA-21 SP SPH-22 SPA-22 SP SPH- SPA- SP SPH-24 SPA-24 SP SPH-25 SPA-25 SP SPH-26 SPA-26 SP SPH-27 SPA-27 SP SPH-28 SPA-28 SP SPH-29 SPA-29 SP SPH-30 SPA-30 SP SPH-31 SPA-31 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: 1. Stock Shear Pin Sprocket To price a 35 tooth shear pin sprocket for 160 chain (160SP35) using SP-26 shear pin assembly with " bore, standard keyway and setscrew: SP-26 Assembly List Price... See List 160A35 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 50SP40 using SP-19 hub: SPA-19 Adapter List Price... See List 50A40 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 1 " J K L H G M P Shear Pin Assembly Dimensions (Inches) Table I Shear Pin Diameters Length Thru Adapt. Bolts Weights Lbs. (Approx.) 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-17 1" & UNDER SP SP SP SP SP SP SP SP SP SP SP SP SP SP E-5

6 Bolt-On Shear Pin Sprockets Shear Pin Sprocket Selection 1. 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-5 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 63, or T = D CP 1.5 RPM 2 or T = Output of reducer speed ratio of chain drive 1.5 Where: T = Torque in pound inches HP = Horsepower at Sprocket RPM = Sprocket Speed D = Pitch Diameter of Sprocket CP = Chain pull in pounds 1.5 = Safety factor for starting load Shear Pin Torque Ratings Example: 1. Determine the shear pin assembly and pin neck diameter to transmit 20 horsepower at 67 RPM with a 45 tooth, No. 100 sprocket on a 2 16" shaft. (1) Referring to Table II (page E-5), shear pin assembly SP-25 is required for a 2 16" bore. The 45 tooth sprocket is well above the minimum size. (2) Torque and neck diameter: HP 63, T = RPM 20 63, T = = 28,200 lb. in. 67 Referring to Table III (below) under SP-25, a pin necked to 3 " shows a torque rating of 29,810 lb. in., which exceeds the 28,200 lb. in. required. (3) Order: 100SP45, SP-25 assembly with 2 16" bore and 3 " pin neck diameter. Table III Shear TORQUE RATING POUND INCHES Pin Neck Shear Pin Number Diameter (inches) SP17 SP18 SP19 SP20 SP21 SP22 SP SP24 SP25 SP26 SP27 SP28 SP29 SP30 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. Lbs. Number Stock *Maximum B C D Number Bolt Size E F L (Approx.) 102S 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 Solid s-steel Dimensions (Inches) See current discount sheet for alteration charges. Bore Range A Bolt Flange Bolt Holes Diameter Circle Diameter Wt. Lbs. Number Stock *Maximum B C D Number Bolt Size E F G L (Approx.) *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. Lbs. Number Bore Length Bolts (Approx.) S-1 3 4" " 3 1 " 1" 3 " 2 1 4" 1.8 S " " 4 3 " 1 1 4" 1 2" 3" 4.1 S-3 2" - 3" 6" 1 3 " 5 " 4 1 2" 8.4 S " - 4" 7 5 " 1 1 2" 3 4" 5 1 2" 14.4 S " - 5" 9 1 4" 2" 1" 6" 27.8 S " - 6" " 2 1 4" 1" 6" 35.4 S " - 7" " 2 1 2" 1" 7" 64.4 S " - 8" " 3" 1" 8" 98.5 *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. Bore PRICING EXAMPLE STYLE B 120B45 Split with S-3, 2 16" Bore, KW & SS Bore PRICING EXAMPLE STYLE C 120C45 Split with S-3 s, 2 16" Bore, KW & SS S-3 120A45 Plate Two S-3 s 120A45 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 Instant Split s are for use with plate sprockets only. For multiple strand split sprockets, consult Martin. Split No. Bore Minimum Number of Teeth for Single Sprockets Chain Number S-1 3 4" " S " " S-3 2" - 3" S " - 4" S " - 5" S " - 6" S " - 7" S " - 8" E-8

9 Torque-Limiter Clutches Martin TORQUE-LIMITER clutch offers thrifty overload protection that s easy to adjust. Non-Asbestos Friction Discs Pressure Plate Spring Washer Long-Life Bushing More Adjustment Capability with Spline Sprocket Adjustment Nut Setscrew Cap Screw Spring Compression 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 63 to 125 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. 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: 1. 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. 3. 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 protec - tion 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.-in.) 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 63 to 125 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 /1.628 TT /2.003 TT /3.005 TT /4.194 Using a center member with rubbing sides ground parallel 63 to 125 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 1-SS ) Size Stock Max. Bore No. Bore Std. KW* Shallow KW* TT TT TT TT For additional SS see List Price Alterations. * KW to be cut central w/threaded spline. Bored to Size Torque Limiters w/std. KW & 1-SS B G E C ED J L K for maximum torque setting. For minimum torque setting, add 3 64" for No. 25; 5 64" for No. 35; 3 32" for Nos. 50 and 70. When two springs are used this dimension is increased approximately 1 16" on Nos. 25, 35 and " on No. 70. Standard Keyways Torque- Torque- Limiter Limiter Bore Keyway Bore Keyway Size No. Finished Bores TT TT TT TT KW same as std. listed in tables above. For additional SS see List Price. Unit Min. Allowable Sprocket Teeth and Length of Bushing Req d for Chain Number Size Sprocket Pitch STOCK TT25 Min. Teeth MTO Bush. Lght. Req d STOCK TT35 Min. Teeth MTO Bush. Lght. Req d STOCK TT50 Min. Teeth MTO Bush. Lght. Req d STOCK 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 3 " long bushing and one 1 2" long. Use two 1 2" long bushings. A Stock Plate Sprockets with Ground Face and Bored to Fit the Martin Torque Limiter UNIT TT25 Sprocket Size 35TTA TTA TTA TTA TTA TTA TTA TTA TTA TTA22-25 UNIT TT50 Sprocket Size 40TTA TTA TTA TTA TTA TTA TTA TTA TTA TTA24-50 SPARE PARTS UNIT TT35 Sprocket Size 35TTA TTA TTA TTA TTA TTA TTA TTA TTA TTA TTA20-35 UNIT TT70 Sprocket Size 60TTA TTA TTA TTA TTA TTA TTA24-70 TT25 TT50 TT35 TT70 QTY. REQ.* PRESSURE PLATE 2 FRICTION DISC 2 ADJ. NUT ASSY. & S.S. 1 ADJ. TENSION NUT 3 HUB 1 * PER UNIT E-10

11 Double Pitch All Steel 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 revolution, 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 31 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-11

12 Double Pitch All Steel 1-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 Bore (Approx.) B11 B B12 B B B B14 B B B B16 B B17 B B18 B B19 B B20 B B21 B B22 B B B B24 B B25 B B26 B B28 B B30 B Has recessed groove in hub for chain clearance..284" 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 Bore (Approx.) Type Number Bore (Approx.) B8 B B9 B B10 B B11 B B12 B B B B14 B B B B16 B A 2042A B17 B A 2042A B18 B A 2042A B19 B A 2042A B20 B A 2042A B21 B A 2042A B22 B A 2042A B B A 2042A B24 B A 2042A B25 B A 2042A B26 B A 2042A B28 B A 2042A B30 B A 2042A " Length Thru Bore. 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-12

13 Double Pitch All Steel Inch Double-Pitch.343" Conveyor or Drive Series Standard Roller Double Pitch 2050/C2050 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 Bore (Approx.) Type Number Bore (Approx.) B11 B B12 B B B B14 B B B B16 B B17 B B18 B B19 B B20 B B21 B B22 B B B B24 B A 2050A B25 B A 2050A B26 B A 2050A B28 B A 2050A B30 B A 2050A Has recessed groove in hub for chain clearance. TYPE A Length Thru Bore.343". Conveyor Series Carrier Roller Double Pitch 2052/C2052 No. Teeth Bore Wt. Wt. Actual Outside Pitch Catalog Rec. Length Lbs. Catalog Stock Lbs. Diameter Diameter Number Type Stock Max. Thru Bore (Approx.) Type Number Bore (Approx.) B8 B B9 B B10 B B11 B B12 B A 2052A B B A 2052A B14 B A 2052A B B A 2052A B16 B A 2052A B17 B A 2052A B18 B A 2052A B19 B A 2052A B20 B A 2052A B21 B A 2052A B22 B A 2052A B B A 2052A B24 B A 2052A B25 B A 2052A B26 B A 2052A B28 B A 2052A B30 B A 2052A 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 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 Bore (Approx.) Type Number Bore (Approx.) B11 B B12 B B B B14 B B B B16 B B17 B B18 B B19 B B20 B B21 B B22 B B B B24 B A 2060A B25 B A 2060A B26 B A 2060A B28 B A 2060A B30 B A 2060A " Has recessed groove in hub for chain clearance. 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 Bore (Approx.) Type Number Bore (Approx.) B8 B B9 B B10 B B11 B B12 B A 2062A B B A 2062A B14 B A 2062A B B A 2062A B16 B A 2062A B17 B A 2062A B18 B A 2062A B19 B A 2062A B20 B A 2062A B21 B A 2062A B22 B A 2062A B B A 2062A B24 B A 2062A B25 B A 2062A B26 B A 2062A B28 B A 2062A B30 B A 2062A Length Thru Bore.459" 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

15 Double Pitch All Steel 2-Inch Double-Pitch.575" 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 Bore(Approx.) Type Number Bore (Approx.) B11 B B12 B B B B14 B B B B16 B B17 B A 2080A B18 B A 2080A B19 B A 2080A B20 B A 2080A B21 B A 2080A B22 B A 2080A B B A 2080A B24 B A 2080A B25 B A 2080A B26 B A 2080A B28 B A 2080A B30 B A 2080A Has recessed groove in hub for chain clearance. TYPE A Length Thru Bore.575" 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 Bore (Approx.) Type Number Bore (Approx.) B8 B B9 B B10 B B11 B A 2082A B12 B A 2082A B B A 2082A B14 B A 2082A B B A 2082A B16 B A 2082A B17 B A 2082A B18 B A 2082A B19 B A 2082A B20 B A 2082A B21 B A 2082A B22 B A 2082A B B A 2082A B24 B A 2082A B25 B A 2082A B26 B A 2082A B28 B A 2082A B30 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 " Pitch All Steel.110" Alteration Charges Length Thru Bore See current discount sheet for alteration charges. 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 Bore (Approx.) Type Number Bore (Approx.) 9 25B B B B B B B B B B B B B B B B B B B B A 25A B B A 25A B B A 25A B B A 25A B B A 25A B B A 25A B B A 25A B B A 25A B B A 25A B B A 25A B B A 25A B B A 25A A 25A B B A 25A B B A 25A A 25A B B A 25A B B A 25A B B A 25A B B A 25A B B B B A 25A 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

17 Stainless Steel No " Pitch.110". Alteration Charges See current discount sheet for alteration charges. Length Thru Bore STAINLESS STEEL Single - Type B Stainless Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru (Approx.) 9 25B9SS B B10SS B B11SS B B12SS B BSS B B14SS B BSS B B16SS B B17SS B B18SS B B19SS B B20SS B B21SS B B22SS B BSS B B24SS B B25SS B B26SS B B28SS B B30SS B B32SS B B35SS B B36SS B B40SS B B45SS 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. E-17

18 No " Pitch All Steel 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 35BS 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) 1 4" setscrews only in 1 2" & 3 " bore. Keyway with Setscrew at 90. diameters vary to suit different bore sizes. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH..168" Length Thru Bore S BORED-TO-SIZE E-18

19 All Steel No " Pitch.168" Length Thru Bore S BORED-TO-SIZE No. 35-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 35BS9HT BS10HT BS11HT BS12HT BSHT BS14HT BSHT BS16HT BS17HT BS18HT BS19HT BS20HT BS21HT BS22HT BSHT BS24HT BS25HT BS26HT BS28HT BS30HT Indicates no keyway. (2) 1 4" setscrews only in 1 2" & 3 " bore at 90. Keyway with Setscrew at 90 & 180. diameters vary to suit different bore sizes. 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-19

20 No " Pitch Stainless Steel.168" STAINLESS STEEL Length Thru Bore Alteration Charges See current discount sheet for alteration charges. 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 35B9SS B B10SS B B11SS B B12SS B BSS B B14SS B BSS B B16SS B B17SS 2.0 B B18SS B B19SS B B20SS B B21SS B B22SS B BSS B B24SS B B25SS B B26SS B B28SS B B30SS B B32SS B B35SS B B36SS B B40SS B A 35A40SS B45SS B A 35A45SS B60SS B A 35A60SS 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. E-20

21 All Steel No " Pitch.168".168" Alteration Charges See current discount sheet for alteration charges. Length Thru Bore TYPE A TYPE A Single - Type B Steel 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 35B8 1.0 B B B B B B B B B B B B B B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A B B A 35A 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-21

22 No " Pitch All Steel Single - Taper Bushed.168" C L Single - Taper Bushed Diameter Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 18 35BTB 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-22

23 All Steel No " Pitch QD Single - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. With Rim Teeth Number Bushing Diameter Diameter Type Bore L 1 L 2 C Y G X T Only 19 35JA19 JA B JA20 JA B JA21 JA B JA22 JA B JA JA B JA24 JA B JA25 JA B JA26 JA B JA27 JA B JA28 JA B JA30 JA B JA32 JA B JA35 JA B SH36 SH B SH40 SH B SH42 SH B SH45 SH B SH48 SH B SH54 SH B SH60 SH B SH70 SH B SH72 SH B SH80 SH B SH84 SH B SH96 SH B SH112 SH B E-

24 No " Pitch MST Sprockets D.E. TYPE 3 Single - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 19 35H19 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H20 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H21 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H22 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H24 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H25 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H26 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H28 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H30 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H32 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H35 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H36 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H40 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H42 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H45 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H48 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H54 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H60 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H70 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H72 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H80 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H84 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H96 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ H112 H /2 1-1/2 1-1/4 1/16 2-1/2 1-5/ E-24

25 All Steel No " Pitch.561" Length Thru Bore.162" Double - Taper Bushed QD TYPE C Double - Type B Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 12 D35B12H B D35BH B D35B14H B D35BH B D35B16H B D35B17H 2.0 B D35B18H B D35B19H B D35B20H B D35B21H B D35B22H B D35BH B D35B24H B D35B25H B D35B B D35B B D35B B D35B B D35B B D35B B D35B B D35B B D35B B D35B B D35B B D35B B D35B B D35B 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. Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 19 D35BTB19H B D35BTB20H B D35BTB21H B D35BTB22H B D35BTB24H B D35BTB B D35BTB B D35BTB B D35BTB B D35BTB B D35BTB B D35BTB B D35BTB B D35BTB B D35BTB B D35BTB B D35BTB B D35BTB B Sprockets with H suffix have hardened teeth. Double - Type QD.561" C L TAPER BUSHED.162" Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P X T W Onl 68 D35SDS68 SDS C D35SDS72 SDS C D35SDS76 SDS C D35SK84 SK C D35SK95 SK C D35SK96 SK C D35SK102 SK C E-25

26 No " Pitch All Steel Triple - Type B Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx. E35BH B E35B14H B E35BH B E35B16H B E35B17H 2.0 B E35B18H B E35B19H B E35B20H B E35B21H B E35B22H B E35BH B E35B24H B E35B25H B E35B B E35B B E35B B E35B B E35B B E35B B E35B B E35B B E35B B E35B B E35B B E35B B E35B B E35B B " Length Thru Bore.162" 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 35 stock sprockets with 25 teeth or less have hardened teeth. Sprockets with H suffix have hardened teeth. QD TYPE C Triple - Type QD No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P X T W Only 68 E35SK68 SK C E35SK72 SK C E35SK76 SK C E35SK84 SK C E35SK95 SK C E35SK96 SK C E35SK102 SK C E-26 Diameters Dimensions Weight (Approx.)

27 All Steel No " Pitch.227" BORED-TO-SIZE Length Thru Bore S 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 41BS 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) 1 4" setscrews only in 1 2" bore. diameters vary to suit different bore sizes. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. E-27

28 No " Pitch All Steel & Stainless Steel.227".227" Single - Type B TYPE A Length Thru Bore 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 Bore (Approx.) Type Number Bore (Approx.) 6 41B B B B B B B B B B B B B B B B B B B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A B B A 41A Single - Type B Stainless Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs. Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru Bore (Approx.) Type Number Bore (Approx.) 9 41B9SS B B10SS B B11SS B B12SS B BSS B B14SS B BSS B B16SS B B17SS B B18SS B B19SS B B20SS B E-28 Single - Type A Stainless 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.

29 All Steel No " Pitch Single - Taper Bushed Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 14 41BTB 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..227" TAPER BUSHED Single - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y G X T Only 41JA JA B JA16 JA B JA17 JA B JA18 JA B JA19 JA B SH20 SH B SH21 SH B SH22 SH B SH SH B SH24 SH B SH25 SH B SH26 SH B SH27 SH B SH28 SH B SH30 SH B SH32 SH B SH35 SH B SDS36 SDS B SDS40 SDS B SDS42 SDS B SDS45 SDS B SDS48 SDS B SDS54 SDS B SDS60 SDS B SK70 SK B SK72 SK B SK80 SK B SK84 SK B SK96 SK B SK112 SK B QD E-29

30 No " Pitch All Steel 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) 1 4" setscrews only. diameters vary to suit different bore sizes. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. BORED-TO-SIZE Length Thru Bore S.284" E-30

31 All Steel No " Pitch No. 40-Hardened Teeth 2 Setscrews Bored-To-Size.284" Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and 2 Setscrews Length Thru Bore S 9 40BS9HT BS10HT BS11HT BS12HT BSHT BS14HT BSHT BS16HT BS17HT BS18HT BS19HT BS20HT BS21HT BS22HT BSHT BS24HT BS25HT BS26HT BS28HT BS30HT Indicates no keyway. (2) 1 4" setscrews only in 1 2" & 3 " bore at 90. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH..284" 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 Length Thru Bore TYPE C Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 12 40C C C C C C C Has recessed groove in hub for chain clearance. E-31

32 No " Pitch All Steel Double Single - Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Lbs. 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 1 C E L 2 Nom. Only 18 DS40ATB18H A DS40ATB19H A DS40ATB20H A DS40ATB21H A DS40ATBH 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 1 C E L 2 Nom. Only 19 DS40H19H H BH DS40H21H H BH DS40PH P B DS40P24H P B E-32 MST

33 Stainless Steel No " Pitch.284" Length Thru Bore Alteration Charges See current discount sheet for alteration charges. Single - Type B Stainless STAINLESS STEEL 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 Bore (Approx.) Type Number Bore (Approx.) 8 40B8SS B B9SS B B10SS B B11SS B B12SS B BSS B A 40ASS B14SS B A 40A14SS BSS B A 40ASS B16SS B A 40A16SS B17SS B A 40A17SS B18SS B A 40A18SS B19SS B A 40A19SS B20SS B A 40A20SS B21SS B A 40A21SS B22SS B A 40A22SS BSS B A 40ASS B24SS B A 40A24SS B25SS B A 40A25SS B26SS B A 40A26SS B28SS B A 40A28SS B30SS B A 40A30SS B32SS B A 40A32SS B35SS B A 40A35SS B36SS 6.0 B A 40A36SS B40SS B A 40A40SS B45SS B A 40A45SS B48SS B A 40A48SS B54SS B A 40A54SS 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. E-33

34 No " Pitch All Steel Single - Type B Bore (inches) (inches) Weight Weight No. Catalog Outside Rec. Length Lbs Catalog Stock Lbs. Teeth Number Diameter Type Stock Max. Diameter Thru Bore (Approx.) Type Number Bore (Approx.) 8 40B B B B B B B B 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 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 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 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 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 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 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 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. TYPE A.284".284" Length Thru Bore Alteration Charges See current discount sheet for alteration charges. E-34

35 All Steel No " Pitch Single - Type QD With Hardened Teeth No. Catalog Teeth Number 40JAH 16 40JA16H 17 40JA17H 18 40JA18H 19 40JA19H 20 40SH20H S A B E R 21 40SH21H 22 40SH22H 40SHH 24 40SH24H 25 40SH25H 26 40SH26H 27 40SH27H 28 40SH28H 30 40SH30H T O O T H Single - Type QD QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y G X T Only 40JA JA B JA16 JA B JA17 JA B JA18 JA B JA19 JA B SH20 SH B SH21 SH B SH22 SH B SH SH B SH24 SH B SH25 SH B SH26 SH B SH27 SH B SH28 SH B SH30 SH B SH32 SH B SH35 SH B SDS36 SDS B SDS40 SDS B SDS42 SDS B SDS45 SDS B SDS48 SDS B SDS54 SDS B SDS60 SDS B SK70 SK B SK72 SK B SK80 SK B SK84 SK B SK96 SK B SK112 SK B E-35

36 No " Pitch All Steel Single - Taper Bushed with Hardened Teeth.284" S A B E R No. Catalog Teeth Number 14 40BTB14H 40BTBH 16 40BTB16H 17 40BTB17H 18 40BTB18H 19 40BTB19H 20 40BTB20H 21 40BTB21H 22 40BTB22H 40BTBH 24 40BTB24H 25 40BTB25H 26 40BTB26H 28 40BTB28H 30 40BTB30H L C TAPER BUSHED T O O T H Single - Taper Bushed Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 14 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 BTB B Has recessed groove in hub for chain clearance. E-36

37 MST Sprockets No " Pitch D.E. TYPE 3 TYPE 4 Single - MST Sprockets Diameters Dimensions Weight Lbs. 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 1-19/32 1-1/4 5/32 2-1/2 1-1/ H16H H /2 1-19/32 1-1/4 5/32 2-1/2 1-1/ H17H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ H18H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P18H P /4 2-3/16 1-/ / H19H H /2 1-1/2 1-1/4 1/16 2 1/2 1-1/ P19H P /4 2-3/16 1-/ / H20H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P20H P /4 2-3/16 1-/ / H21H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P21H P /4 2-3/16 1-/ / H22H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P22H P /4 2-3/16 1-/ / HH H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ PH P /4 2-3/16 1-/ / H24H H /2 1 1/2 1-1/4 1/16 2-1/2 1-1/ P24H P /4 2 3/16 1-/ / H25H H /2 1 1/2 1-1/4 1/16 2-1/2 1-1/ P25H P /4 2 3/16 1-/ / H26H H /2 1 1/2 1-1/4 1/16 2-1/2 1-1/ P26H P /4 2-3/16 1-/ / H27H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ H28H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P28H P /4 2-3/16 1-/ / P29H P /4 2-3/16 1-/ / H30H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P30H P /4 2-3/16 1-/ / P31 P /4 2-3/16 1-/ / H32H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P32 P /4 2-3/16 1-/ / H33H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P33 P /4 2-3/16 1-/ / P34 P /4 2-3/16 1-/ / H35H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P35 P /4 2-3/16 1-/ / H36H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P36 P /4 2-3/16 1-/ / P37 P /4 2-3/16 1-/ / H38H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P38 P /4 2-3/16 1-/ / H40H H /2 1-1/2 1-1/4 1/16 2-1/2 1-1/ P40 P /4 2-3/16 1-/ / P41 P /4 2-3/16 1-/ / P42 P /4 2-3/16 1-/ / P44 P /4 2-3/16 1-/ / P45 P /4 2-3/16 1-/ / P47 P /4 2-3/16 1-/ / P48 P /4 2 3/16 1-/ / P50 P /4 2-3/16 1-/ / P54 P /4 2-3/16 1-/ / P56 P /4 2-3/16 1-/ / P60 P /4 2-3/16 1-/ / Q60 Q / /32 2-1/ /8 2-7/ P70 P /4 2-3/16 1-/ / Q70 Q / /32 2-1/ /8 2-7/ Q72 Q / /32 2-1/ /8 2-7/ Q80 Q / /32 2-1/ /8 2-7/ Q84 Q / /32 2-1/ /8 2-7/ Q96 Q / /32 2-1/ /8 2-7/ Q112 Q / /32 2-1/ /8 2-7/ Sprockets with H suffix have hardened teeth. E-37

38 No " Pitch All Steel Double - Type B Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 D40B11H B D40B12H B D40BH B D40B14H B D40BH B D40B16H B D40B17H B D40B18H B D40B19H B D40B20H B D40B21H B D40B22H B D40BH B D40B24H B D40B25H B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B D40B B Has recessed groove in hub for chain clearance..841" Length Thru Bore.275" 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 25 teeth or less have hardened teeth. As indicated by H suffix. Double - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P X T W Only 36 D40SK36 SK C D40SK40 SK C D40SK42 SK C D40SK45 SK C D40SK48 SK C D40SK52 SK C D40SK54 SK C D40SK60 SK C D40SF68 SF C D40SF72 SF C D40SF76 SF C D40SF84 SF C D40SF95 SF C D40SF102 SF C D40SF112 SF C E-38

39 All Steel No " Pitch.841".275" Nom..841".275" Nom..841".275" Nom. C C C L TYPE A L L TYPE C Double - Taper Bushed Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only D40ATBH A D40ATB16H A D40ATB17H A D40BTB18H B D40BTB19H B D40BTB20H B D40BTB21H B D40BTBH B D40BTB25H B D40BTB B D40BTB B D40CTB C D40CTB C D40CTB C D40CTB C D40CTB C D40CTB C D40CTB C D40CTB C D40CTB C NOTE: Double 40 stock sprockets with 25 teeth or less have hardened teeth. As indicated by H suffix. E-39

40 No " Pitch MST Sprockets.841".841".841" D.E. D.E. D.E. TYPE 11 TYPE 12 TYPE 16 Double - MST Sprockets Diameters Dimensions Weight Lbs. 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 2-5/32 1-1/4 /32 2-1/2 1-1/ D40H16H H /2 2-5/32 1-1/4 /32 2-1/2 1-1/ D40H17H H /2 2-5/32 1-1/4 /32 2-1/2 1-1/ D40P18H P /4 3-3/16 1-/ / D40P19H P /4 2-/32 1-/16 9/ / D40P20H P /4 2-/32 1-/16 7/ / D40P21H P /4 2-/32 1-/16 7/ / D40P22H P /4 2-/32 1-/16 7/ / D40PH P /4 2-3/16 1-/ / D40P24H P /4 2-3/16 1-/ / D40P25H P /4 2-3/16 1-/ / D40P26H P /4 2-3/16 1-/ / D40P28H P /4 2-3/16 1-/ / D40Q30H Q / /32 2-1/ /8 1-21/ D40Q32H Q / /32 2-1/ /8 1-21/ D40Q35H Q / /32 2-1/ /8 1-21/ D40Q36H Q / /32 2-1/ /8 1-21/ D40Q40H Q / /32 2-1/ /8 1-21/ D40Q42H Q / /32 2-1/ /8 1-21/ D40Q45H Q / /32 2-1/ /8 1-21/ D40Q48H Q / /32 2-1/ /8 1-21/ D40Q52H Q / /32 2-1/ /8 1-21/ D40Q54H Q / /32 2-1/ /8 1-21/ D40Q60H Q / /32 2-1/ /8 1-21/ D40Q68 Q / /32 2-1/ /8 1-21/ D40Q72 Q / /32 2-1/ /8 1-21/ D40Q76 Q / /32 2-1/ /8 1-21/ D40Q84 Q / /32 2-1/ /8 1-21/ D40Q95 Q / /32 2-1/ /8 1-21/ D40Q96 Q / /32 2-1/ /8 1-21/ D40Q102 Q / /32 2-1/ /8 1-21/ D40Q112 Q / /32 2-1/ /8 1-21/ Sprockets with H suffix have hardened teeth. E-40

41 All Steel No " Pitch Triple - Type B 1.407" Length Thru Bore.275" QD Alteration Charges See current discount sheet for alteration charges. Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 E40B11H B E40B12H B E40BH B E40B14H B E40BH B E40B16H B E40B17H B E40B18H B E40B19H B E40B20H B E40B21H B E40B22H B E40BH B E40B24H B E40B25H B E40B B E40B B E40B B E40B B E40B B E40B B E40B B E40B B E40B B E40B B E40B B E40B B E40B 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 25 teeth or less have hardened teeth. As indicated by H suffix. Triple - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y X T W Only 36 E40SK36 SK B E40SK42 SK B E40SK48 SK B E40SK52 SK B E40SK60 SK B E40SF68 SF B E40SF72 SF B E40SF76 SF B E40SF84 SF B E40SF95 SF B E40SF102 SF B E-41

42 No " Pitch MST Sprockets 1.407" 1.407" 1.407" TYPE 22 TYPE TYPE 27 Triple - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 18 E40P18H P /4 3-3/4 1-/16 1 9/ / E40P19H P /4 3-1/32 1-/16 27/ / E40P20H P /4 2-31/32 1-/16 25/ / E40PH P /4 2-9/32 1-/16 3/32 3 5/ E40P24H P /4 2-9/32 1-/16 3/32 3 5/ E40P25H P /4 2-9/32 1-/16 3/32 3 5/ E40P27H P /4 2-9/32 1-/16 3/32 3 5/ E40Q30H Q / /32 2-1/ /8 1-3/ E40Q35H Q / /32 2-1/ /8 1-3/ E40Q36H Q / /32 2-1/ /8 1-3/ E40Q42H Q / /32 2-1/ /8 1-3/ E40Q48H Q / /32 2-1/ /8 1-3/ E40Q52H Q / /32 2-1/ /8 1-3/ E40Q54H Q / /32 2-1/ /8 1-3/ E40Q60H Q / /32 2-1/ /8 1-3/ E40Q68 Q / /32 2-1/ /8 1-3/ E40Q72 Q / /32 2-1/ /8 1-3/ E40Q76 Q / /32 2-1/ /8 1-3/ E40Q84 Q / /32 2-1/ /8 1-3/ E40Q95 Q / /32 2-1/ /8 1-3/ E40Q102 Q / /32 2-1/ /8 1-3/ Sprockets with H suffix have hardened teeth. E-42

43 All Steel No " 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 50BS 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. diameters vary to suit different bore sizes. KEYWAY IS ON CENTER LINE OF TOOTH. E-43

44 No " Pitch All Steel No. 50 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 50BS9HT BS10HT BS11HT BS12HT BSHT BS14HT BSHT BS16HT BS17HT BS18HT BS19HT BS20HT BS21HT BS22HT BSHT BS24HT Setscrews at 90 and 180 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. Length Thru Bore S.343".343" Length Thru Bore Single - Type C Steel Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 12 50C C C C C C C C C Length Thru Bore TYPE C Has recessed groove in hub for chain clearance. E-44

45 All Steel No /8" Pitch Double Single - Type A Steel TYPE A Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Lbs. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS50A A DS50A A DS50A A DS50A A DS50A A DS50A A DS50A A DS50A A DS50A A DS50A A Double Single - Taper Bushed Steel TAPER BUSH TYPE A Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L 1 C E L 2 Nom. Only 16 DS50ATB16H A DS50ATB17H A DS50ATB18H A DS50ATB19H A DS50ATB20H A DS50ATB21H A DS50ATBH A DS50ATB24H A Sprockets with H suffix have hardened teeth. Double Single- MST Steel MST Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L 1 C E L 2 Nom. Only 17 DS50H17H H BH DS50P19H P B DS50P21H P B DS50PH P B DS50P24H P B Sprockets with H suffix have hardened teeth. E-45

46 No " Pitch Stainless Steel.343" STAINLESS STEEL Length Thru Bore Alteration Charges See current discount sheet for alteration charges. 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.) 8 50B8SS B B9SS B B10SS B B11SS B B12SS B BSS B A 50ASS B14SS B A 50A14SS BSS B A 50ASS B16SS B A 50A16SS B17SS B A 50A17SS B18SS B A 50A18SS B19SS B A 50A19SS B20SS B A 50A20SS B21SS B A 50A21SS B22SS B A 50A22SS BSS B A 50ASS B24SS B A 50A24SS B25SS B A 50A25SS B26SS B A 50A26SS B28SS B A 50A28SS B30SS B A 50A30SS B32SS B A 50A32SS B35SS B A 50A35SS B36SS B A 50A36SS B40SS B A 50A40SS B45SS B A 50A45SS B48SS B A 50A46SS B54SS B A 50A54SS B60SS B A 50A60SS 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. E-46

47 All Steel No /8" Pitch.343" Single - Type B Single - Type A Alteration Charges See current discount sheet for alteration charges. TYPE A.343" Length Thru Bore OD 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 50B B B B B B B B B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A B B A 50A 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 " Pitch All Steel Single - Type QD With Hardened Teeth No. Catalog S Teeth Number 12 50JA12H A 50JAH B 14 50JA14H E R 50JAH 16 50JA16H 17 50SH17H 18 50SH18H 19 50SH19H 20 50SDS20H 21 50SDS21H 22 50SDS22H 50SDSH 24 50SDS24H 25 50SDS25H 26 50SDS26H 27 50SDS27H 28 50SDS28H 30 50SDS30H Single - Type QD T O O T H QD Diameters Dimensions Weight (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y G X T Only 12 50JA12 JA B JA JA B JA14 JA B JA JA B JA16 JA B SH17 SH B SH18 SH B SH19 SH B SDS20 SDS B SDS21 SDS B SDS22 SDS B SDS SDS B SDS24 SDS B SDS25 SDS B SDS26 SDS B SDS27 SDS B SDS28 SDS B SDS30 SDS B SDS32 SDS B SDS35 SDS B SDS36 SDS B SDS40 SDS B SDS42 SDS B SDS45 SDS B SDS48 SDS B SK54 SK B SK60 SK B SK70 SK B SK72 SK B SF80 SF B SF84 SF B SF96 SF B SF112 SF B E-48

49 All Steel No " Pitch Single - Taper Bushed with Hardened Teeth S A B E R No. Catalog Teeth Number 12 50BTB12H 50BTBH 14 50BTB14H 50BTBH 16 50BTB16H 17 50BTB17H 18 50BTB18H 19 50BTB19H 20 50BTB20H 21 50BTB21H 22 50BTB22H 50BTBH 24 50BTB24H 25 50BTB25H 26 50BTB26H 27 50BTB27H 28 50BTB28H 30 50BTB30H T O O T H L.343" C Single - Taper Bushed Diameter Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 12 50BTB HH B BTB B BTB B BTB HH B BTB HH B BTB HH 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 HH Has recessed groove in hub for chain clearance. E-49

50 No " Pitch MST Sprockets Single - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 50HH H /2 1 21/32 1 1/4 7/32 2-1/2 1-1/ H14H H /2 1 19/32 1 1/4 5/32 2-1/2 1-1/ HH H /2 1 1/2 1 1/4 1/16 2-1/2 31/ PH P /4 2 3/16 1 / / H16H H /2 1 1/2 1 1/4 1/16 2-1/2 31/ P16H P /4 2 3/16 1 / / H17H H /2 1 1/2 1 1/4 1/16 2-1/2 31/ P17H P /4 2 3/16 1 / / H18H H /2 1 1/2 1 1/4 1/16 2-1/2 31/ P18H P /4 2 3/16 1 / / H19H H /2 1 1/2 1 1/4 1/16 2-1/2 31/ P19H P /4 2 3/16 1 / / H20H H /2 1 1/2 1 1/4 1/16 2-1/2 31/ P20H P /4 2 3/16 1 / / H21H H /2 1 1/2 1 1/4 1/16 2-1/2 31/ P21H P /4 2-3/16 1-/ / H22H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P22H P /4 2-3/16 1-/ / HH H /2 1-1/2 1-1/4 1/16 2-1/2 31/ PH P /4 2-3/16 1-/ / QH Q / /32 2-1/2 4-1/8 2-5/ H24H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P24H P /4 2-3/16 1-/ / Q24H Q / /32 2-1/2 4-1/8 2-5/ H25H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P25H P /4 2-3/16 1-/ / Q25H Q / /32 2-1/2 4-1/8 2-5/ H26H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P26H P /4 2-3/16 1-/ / Q26H Q / /32 2-1/2 4-1/8 2-5/ H27H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P27H P /4 2-3/16 1-/ / Q27H Q / /32 2-1/2 4-1/8 2-5/ H28H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P28H P /4 2-3/16 1-/ / Q28H Q / /32 2-1/2 4-1/8 2-5/ P29H P /4 2-3/16 1-/ / H30H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P30H P /4 2-3/16 1-/ / Q30H Q / /32 2-1/2 4-1/8 2-5/ P31 P /4 2-3/16 1-/ / H32H H /2 1-1/2 1 1/4 1/16 2-1/2 31/ P32 P /4 2-3/16 1-/ / Q32 Q / /32 2-1/2 4-1/8 2-5/ H33H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P33 P /4 2-3/16 1-/ / H34H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P34 P /4 2-3/16 1-/ / H35H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P35 P /4 2-3/16 1-/ / Q35 Q / /32 2-1/2 4-1/8 2 5/ H36H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ P36 P /4 2-3/16 1-/ / Q36 Q / /32 2-1/2 4-1/8 2-5/ Q37 Q / /32 2-1/2 4-1/8 2-5/ H38H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ Q38 Q / /32 2-1/2 4-1/8 2-5/ Q39 Q / /32 2-1/2 4-1/8 2-5/ H40H H /2 1-1/2 1-1/4 1/16 2-1/2 31/ Q40 Q / /32 2-1/2 4-1/8 2-5/ Q41 Q / /32 2-1/2 4-1/8 2-5/ Q42 Q / /32 2-1/2 4-1/8 2-5/ Q44 Q / /32 2-1/2 4-1/8 2-5/ Q45 Q / /32 2-1/2 4-1/8 2-5/ Q47 Q / /32 2-1/2 4-1/8 2-5/ Q48 Q / /32 2-1/2 4-1/8 2-5/ Q50 Q / /32 2-1/2 4-1/8 2-5/ Q54 Q / /32 2-1/2 4-1/8 2-5/ Q56 Q / /32 2-1/2 4-1/8 2-5/ Q60 Q / /32 2-1/2 4-1/8 2-5/ Q70 Q / /32 2-1/2 4-1/8 2-5/ Q72 Q / /32 2-1/2 4-1/8 2-5/ Q80 Q / /32 2-1/2 4-1/8 2-5/ Q84 Q / /32 2-1/2 4-1/8 2-5/ Q96 Q / /32 2-1/2 4-1/8 2-5/ Q112 Q / /32 2-1/2 4-1/8 2-5/ Sprockets with H suffix have hardened teeth. E-50 TYPE 3 TYPE 4

51 All Steel No " Pitch Double - Type B Alteration Charges QD TYPE C See current discount sheet for alteration charges " Length Thru Bore.332" Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 D50B11H B D50B12H B D50BH B D50B14H B D50BH B D50B16H B D50B17H B D50B18H B D50B19H B D50B20H B D50B21H B D50B22H B D50BH B D50B24H B D50B25H B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B B D50B 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 50 stock sprockets with 25 teeth or less have hardened teeth, as indicated by H suffix. Double - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P X T W Only 36 D50SK36 SK C D50SK42 SK C D50SK48 SK C D50SF52 SF C D50SF54 SF C D50SF60 SF C D50SF68 SF C D50SF72 SF C D50SF76 SF C D50SF84 SF C D50SF95 SF C D50SF102 SF C D50SF112 SF C E-51

52 No " Pitch All Steel 1.045" 1.045" 1.045" C C C L L L TYPE A TYPE C Double - Taper Bushed Diameter Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 14 D50ATB14H A D50ATBH A D50ATB16H A D50ATB17H A D50ATB18H A D50ATB19H A D50BTB20H B D50BTB21H B D50BTB25H B D50BTB B D50CTB C D50CTB C D50CTB C D50CTB C D50CTB C D50CTB C D50CTB C D50CTB C D50CTB C D50CTB C NOTE: Double 50 stock sprockets with 25 teeth or less have hardened teeth, as indicated by H suffix. E-52

53 MST Sprockets No " Pitch 1.045" 1.045" 1.045" TYPE 11 TYPE 12 TYPE 16 Double - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 14 D50H14H H /2 2-5/16 1-1/4 7/8 2-1/2 1-3/ D50PH P /4 3-7/16 1-/16 1-1/4 3 1-/ D50P16H P /4 2-11/16 1-/16 1/2 3 1-/ D50P17H P /4 2-11/16 1-/16 1/2 3 1-/ D50P18H P /4 2-11/16 1-/16 1/2 3 1-/ D50P19H P /4 2-3/16 1-/ / D50P20H P /4 2-3/16 1-/ / D50P21H P /4 2-3/16 1-/ / D50P22H P /4 2-3/16 1-/ / D50PH P /4 2-3/16 1-/ / D50Q24H Q / /32 2-1/2 4-1/8 1-/ D50Q25H Q / /32 2-1/2 4-1/8 1-/ D50Q26H Q / /32 2-1/2 4-1/8 1-/ D50Q27H Q / /32 2-1/2 4-1/8 1-/ D50Q28H Q / /32 2-1/2 4-1/8 1-/ D50Q30H Q / /32 2-1/2 4-1/8 1-/ D50Q32H Q / /32 2-1/2 4-1/8 1-/ D50Q35H Q / /32 2-1/2 4-1/8 1-/ D50Q36H Q / /32 2-1/2 4-1/8 1-/ D50Q40H Q / /32 2-1/2 4-1/8 1-/ D50Q42H Q / /32 2-1/2 4-1/8 1-/ D50Q45H Q / /32 2-1/2 4-1/8 1-/ D50Q48H Q / /32 2-1/2 4-1/8 1-/ D50Q52 Q / /32 2-1/2 4-1/8 1-/ D50Q54 Q / /32 2-1/2 4-1/8 1-/ D50Q60 Q / /32 2-1/2 4-1/8 1-/ D50Q72 Q / /32 2-1/2 4-1/8 1-/ D50Q76 Q / /32 2-1/2 4-1/8 1-/ D50Q84 Q / /32 2-1/2 4-1/8 1-/ D50R95 R /4 3-5/32 2-7/8 5-3/8 2-3/ D50R96 R /4 3-5/32 2-7/8 5-3/8 2-3/ D50R102 R /4 3-5/32 2-7/8 5-3/8 2-3/ D50R112 R /4 3-5/32 2-7/8 5-3/8 2-3/ Sprockets with H suffix have hardened teeth. E-53

54 No " Pitch All Steel Triple - Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 E50B11H B E50B12H B E50BH B E50B14H B E50BH B E50B16H B E50B17H B E50B18H B E50B19H B E50B20H B E50B21H B E50B22H B E50BH B E50B24H B E50B25H B E50B B E50B B E50B B E50B B E50B B E50B B E50B B E50B B E50B B E50C C E50C C E50C C E50C C E50C C " Length Thru Bore.332" 1.758" Length Thru Bore TYPE C.332" 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 50 stock sprockets with 25 teeth or less have Hardened Teeth. As indicated by H suffix. Alteration Charges See current discount sheet for alteration charges. QD NOTE: Triple 50 stock sprockets with 25 teeth or less have hardened teeth. Triple - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y V X T W Only 36 E50SK36 SK B E50SK42 SK B E50SK48 SK B E50SF52 SF B E50SF60 SF B E50SF68 SF B E50SF72 SF B E50SF76 SF B E50SF84 SF B E50SF95 SF B E50SF102 SF B E-54

55 MST Sprockets No " Pitch 1.758" 1.758" 1.758" 1.758" TYPE 22 TYPE TYPE 24 TYPE 27 Triple - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only E50PH P /4 4-1/8 2-/16 / / E50P16H P /4 3 3/8 2-/16 3/ / E50P17H P /4 3 3/8 2-/16 3/ / E50P18H P /4 3 3/8 2-/16 3/ / E50P19H P /4 2-5/8 1-/16 7/16 3 5/ E50P20H P /4 2-5/8 1-/16 7/16 3 5/ E50P21H P /4 2-5/8 1-/16 7/16 3 5/ E50PH P /4 2-5/8 1-/16 7/16 3 5/ E50Q24H Q / /32 2-1/2 4-1/8 3/ E50Q25H Q / /32 2-1/2 4-1/8 3/ E50Q26H Q / /32 2-1/2 4-1/8 3/ E50Q28H Q / /32 2-1/2 4-1/8 3/ E50Q30H Q / /32 2-1/2 4-1/8 3/ E50Q32H Q / /32 2-1/2 4-1/8 3/ E50Q35H Q / /32 2-1/2 4-1/8 3/ E50Q36H Q / /32 2-1/2 4-1/8 3/ E50Q40H Q / /32 2-1/2 4-1/8 3/ E50Q42H Q / /32 2-1/2 4-1/8 3/ E50Q48H Q / /32 2-1/2 4-1/8 3/ E50Q52 Q / /32 2-1/2 4-1/8 3/ E50R60 R /4 2-5/32 2-7/8 5-3/8 1-1/ E50R68 R /4 2-5/32 2-7/8 5-3/8 1-1/ E50R72 R /4 2-5/32 2-7/8 5-3/8 1-1/ E50R76 R /4 2-5/32 2-7/8 5-3/8 1-1/ E50R84 R /4 2-5/32 2-7/8 5-3/8 1-1/ E50R95 R /4 2-5/32 2-7/8 5-3/8 1-1/ E50R102 R /4 2-5/32 2-7/8 5-3/8 1-1/ Sprockets with H suffix have hardened teeth. E-55

56 No " Pitch All Steel 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 BS11WH BS BS12WH BS BS BS BS BS BS BS18WH 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 5 16" 5 32" One SS at 90 KEYWAY IS ON CENTER LINE OF TOOTH. E-56

57 All Steel No " Pitch.459" No. 60-Hardened Teeth 2 Setscrews Length Thru Bore S Length Weight No. Catalog Outside Thru Lbs. Stock Finished Bores Teeth Number Diameter Bore (Approx.) Includes Keyway and Setscrews 9 60BS9HT BS10HT BS11HT BS12HT BSHT BS14HT BSHT BS16HT BS17HT BS18HT BS19HT KEYWAY IS ON CENTER LINE OF TOOTH..459" 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 Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) Length Thru Bore TYPE C 12 60C HH C C C C C C HH Has recessed groove in hub for chain clearance. E-57

58 No " Pitch All Steel Double Single - Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Lbs. 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 1 C E L 2 Nom. Only 16 DS60ATB16H A DS60ATB17H A DS60ATB18H A DS60ATB19H A DS60ATB20H A DS60ATB21H A DS60ATBH 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 1 C E L 2 Nom. Only 17 DS60P17H P B DS60P19H P B DS60Q21H Q B DS60Q22H Q B DS60QH Q B DS60Q24H Q B E-58 MST

59 Stainless Steel No " Pitch.459" Length Thru Bore STAINLESS STEEL 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.) 8 60B8SS B H B9SS B H B10SS B H B11SS B H B12SS B H H BSS B B14SS B A 60ASS BSS B A 60A14SS B16SS B A 60ASS B17SS B A 60A16SS B18SS B A 60A17SS B19SS B A 60A18SS B20SS B A 60A20SS B21SS B A 60A21SS B22SS B A 60A22SS BSS B A 60ASS B24SS B A 60A24SS B25SS B A 60A25SS B26SS B A 60A26SS B28SS B A 60A28SS B30SS B A 60A30SS B32SS B A 60A32SS B35SS B A 60A35SS B36SS 9.0 B A 60A36SS B40SS B A 60A40SS B45SS B A 60A45SS B60SS B A 60A60SS H 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. E-59

60 No " Pitch All Steel 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 H B B H B B H A 60A B B H A 60A B B H 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 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 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 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 B B A 60A B B A 60A B B A 60A B B A 60A B B A 60A B 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 TYPE A Alteration Charges.459".459" Length Thru Bore See current discount sheet for alteration charges. H 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 No " Pitch Single - Type QD With Hardened Teeth No. Catalog Teeth Number 11 60JA11H 12 60JA12H 60JAH 14 60SH14H 60SHH 16 60SH16H 17 60SDS17H 18 60SDS18H 19 60SDS19H 20 60SDS20H 21 60SDS21H 22 60SDS22H 60SDSH 24 60SDS24H 25 60SDS25H 26 60SK26H 27 60SK27H 28 60SK28H 30 60SK30H C QD C QD 1 O.D S A B E R T O O T H Single - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y G X T Only 11 60JA11 JA B JA12 JA B JA JA B SH14 SH B SH SH B SH16 SH B SDS17 SDS B SDS18 SDS B SDS19 SDS B SDS20 SDS B SDS21 SDS B SDS22 SDS B SDS SDS B SDS24 SDS B SDS25 SDS B SK26 SK B SK27 SK B SK28 SK B SK30 SK B SK32 SK B SK35 SK B SK36 SK B SK40 SK B SF42 SF B SF45 SF B SF48 SF B SF54 SF B SF60 SF B SF70 SF B SF72 SF B SF80 SF B SF84 SF B SF96 SF B E112 E B E-61

62 No. 60 Pitch 3 4" All Steel Single - Taper Bushed with Hardened Teeth No. Teeth Catalog Number 11 60BTB11H 12 60BTB12H 60BTBH 14 60BTB14H 60BTBH 16 60BTB16H 17 60BTB17H 18 60BTB18H 19 60BTB19H 20 60BTB20H 21 60BTB21H 22 60BTB22H 60BTBH 24 60BTB24H 25 60BTB25H 26 60BTB26H 27 60BTB27H 28 60BTB28H 30 60BTB30H S A B E R T O O T H.459" TAPER BUSH Single - Taper Bushed Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 11 60BTB B BTB B BTB H 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 H Has recessed groove in hub for chain clearance. E-62

63 MST Sprockets No " Pitch Single - MST Sprockets TYPE 3 TYPE 4 Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 11 60H11H H /2 1-/16 1-1/4 3/8 2-1/2 1-5/ H12H H /2 1-3/4 1-1/4 5/16 2-1/2 1-3/ HH H /2 1-1/2 1-1/4 1/16 2-1/2 27/ PH P /4 2-3/16 1-/ / H14H H /2 1-1/2 1-1/4 1/16 2-1/2 27/ P14H P /4 2-3/16 1-/ / HH H /2 1-1/2 1-1/4 1/16 2-1/2 27/ PH P /4 2-3/16 1-/ / H16H H /2 1-1/2 1-1/4 1/16 2-1/2 27/ P16H P /4 2-3/16 1-/ / H17H H /2 1-1/2 1-1/4 1/16 2-1/2 27/ P17H P /4 2-3/16 1-/ / H18H H /2 1-1/2 1-1/4 1/16 2-1/2 27/ P18H P /4 2-3/16 1-/ / H19H H /2 1-1/2 1-1/4 1/16 2-1/2 27/ P19H P /4 2-3/16 1-/ / H20H H /2 1-1/2 1-1/4 1/16 2-1/2 27/ P20H P /4 2-3/16 1-/ / Q20H Q / /32 2-1/2 4-1/8 2-1/ P21H P /4 2-3/16 1-/ / Q21H Q / /32 2-1/2 4-1/8 2-1/ H22H H /2 1-1/2 1-1/4 1/16 2-1/2 27/ P22H P /4 2-3/16 1-/ / Q22H Q / /32 2-1/2 4-1/8 2-1/ PH P /4 2-3/16 1-/ / QH Q / /32 2-1/2 4-1/8 2-1/ H24H H /2 1-1/2 1-1/4 1/16 2-1/2 27/ P24H P /4 2-3/16 1-/ / Q24H Q / /32 2-1/2 4-1/8 2-1/ P25H P /4 2-3/16 1-/ / Q25H Q / /32 2-1/2 4-1/8 2-1/ P26H P /4 2-3/16 1-/ / Q26H Q / /32 2-1/2 4-1/8 2-1/ P27H P /4 2-3/16 1-/ / Q27H Q / /32 2-1/2 4-1/8 2-1/ P28H P /4 2-3/16 1-/ / Q28H Q / /32 2-1/2 4-1/8 2-1/ Q29H Q / /32 2-1/2 4-1/8 2-1/ P30H P /4 2-3/16 1-/ / Q30H Q / /32 2-1/2 4-1/8 2-1/ Q31 Q / /32 2-1/2 4-1/8 2-1/ Q32 Q / /32 2-1/2 4-1/8 2-1/ Q33 Q / /32 2-1/2 4-1/8 2-1/ Q34 Q / /32 2-1/2 4-1/8 2-1/ Q35 Q / /32 2-1/2 4-1/8 2-1/ Q36 Q / /32 2-1/2 4-1/8 2-1/ Q37 Q / /32 2-1/2 4-1/8 2-1/ Q38 Q / /32 2-1/2 4-1/8 2-1/ Q39 Q / /32 2-1/2 4-1/8 2-1/ Q40 Q / /32 2-1/2 4-1/8 2-1/ Q41 Q / /32 2-1/2 4-1/8 2-1/ Q42 Q / /32 2-1/2 4-1/8 2-1/ Q44 Q / /32 2-1/2 4-1/8 2-1/ Q45 Q / /32 2-1/2 4-1/8 2-1/ Q47 Q / /32 2-1/2 4-1/8 2-1/ Q48 Q / /32 2-1/2 4-1/8 2-1/ Q50 Q / /32 2-1/2 4-1/8 2-1/ Q54 Q / /32 2-1/2 4-1/8 2-1/ Q56 Q / /32 2-1/2 4-1/8 2-1/ Q60 Q / /32 2-1/2 4-1/8 2-1/ Q70 Q / /32 2-1/2 4-1/8 2-1/ R70 R /4 3-5/32 2-7/8 5-3/8 2-/ Q72 Q / /32 2-1/2 4-1/8 2-1/ R72 R /4 3-5/32 2-7/8 5-3/8 2-/ Q80 Q / /32 2-1/2 4-1/8 2-1/ R80 R /4 3-5/32 2-7/8 5-3/8 2-/ Q84 Q / /32 2-1/2 4-1/8 2-1/ R84 R /4 3-5/32 2-7/8 5-3/8 2-/ Q96 Q / /32 2-1/2 4-1/8 2-1/ R96 R /4 3-5/32 2-7/8 5-3/8 2-/ Q112 Q / /32 2-1/2 4-1/8 2-1/ R112 R /4 3-5/32 2-7/8 5-3/8 2-/ Sprockets with H suffix have hardened teeth. E-63

64 No " Pitch All Steel Double - Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 D60B11H B D60B12H B D60BH B D60B14H B D60BH B D60B16H B D60B17H B D60B18H B D60B19H B D60B20H B D60B21H B D60B22H B D60BH B D60B24H 6.0 B D60B25H B D60B B D60B B D60B B D60B B D60B B D60B B D60B B D60B B D60B B D60B B D60C C 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 Length Thru Bore Length Thru Bore TYPE C.444 NOTE: Double 60 stock sprockets with 25 teeth or less have hardened teeth. As indicated by H suffix. Alteration Charges See current discount sheet for alteration charges. QD TYPE C 1 QD TYPE C 2 QD TYPE C 4 Double - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G X T W Only 14 D60SH14H SH BHH D60SDS22H SDS BH D60SF36 SF C D60E42 E C D60E45 E C D60E52 E C D60E60 E C D60E68 E C D60E76 E C D60E95 E C HH Not illustrated. Dimensions listed correspond approximately to illustrations shown. E-64

65 All Steel No " Pitch 1.341" 1.341" 1.341" L TYPE A 1.341" L L TYPE C 1 L TYPE C Double - Taper Bushed Diameters Dimensions Weight Lbs.(Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only D60BTBH B D60BTB14H B D60BTBH B D60BTB16H B D60BTB17H B D60ATB18H A D60ATB19H A D60BTB20H B D60BTB21H B D60BTB25H B D60BTB B D60CTB C D60CTB C D60CTB C D60CTB C D60CTB C D60CTB C D60CTB C D60CTB C NOTE: Double 60 stock sprockets with 25 teeth or less have hardened teeth. E-65

66 No " Pitch MST Sprockets 1.341" Nom " Nom " Nom " Nom. D.E. D.E. D.E. TYPE 11 TYPE 12 TYPE TYPE 16 Double - MST Sprockets Diameters Dimensions Weight Lbs. 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 3-/16 1-/16 1 5/8 3 1-/ D60P14H P /4 3 1-/16 / / D60PH P /4 3 1-/16 / / D60P16H P /4 2-7/32 1-/16 1/32 3 5/ D60P17H P /4 2-7/32 1-/16 1/32 3 5/ D60P18H P /4 2-7/32 1-/16 1/32 3 5/ D60P19H P /4 2-7/32 1-/16 1/32 3 5/ D60P20H P /4 2-7/32 1-/16 1/32 3 5/ D60Q21H Q / /32 2-1/ /8 1-5/ D60Q22H Q / /32 2-1/ /8 1-5/ D60QH Q / /32 2-1/ /8 1-5/ D60Q24H Q / /32 2-1/ /8 1-5/ D60Q25H Q / /32 2-1/ /8 1-5/ D60Q26H Q / /32 2-1/ /8 1-5/ D60Q27H Q / /32 2-1/ /8 1-5/ D60Q28H Q / /32 2-1/ /8 1-5/ D60Q30H Q / /32 2-1/ /8 1-5/ D60Q32H Q / /32 2-1/ /8 1-5/ D60Q35H Q / /32 2-1/ /8 1-5/ D60Q36H Q / /32 2-1/ /8 1-5/ D60Q40H Q / /32 2-1/ /8 1-5/ D60Q42 Q / /32 2-1/ /8 1-5/ D60R42 R /4 3-5/32 2-7/ /8 1-17/ D60R45 R /4 3-5/32 2-7/ /8 1-17/ D60R48 R /4 3-5/32 2-7/ /8 1-17/ D60R52 R /4 3-5/32 2-7/ /8 1-17/ D60R54 R /4 3-5/32 2-7/ /8 1-17/ D60R60 R /4 3-5/32 2-7/ /8 1-17/ D60R68 R /4 3-5/32 2-7/ /8 1-17/ D60R72 R /4 3-5/32 2-7/ /8 1-17/ D60R76 R /4 3-5/32 2-7/ /8 1-17/ D60R84 R /4 3-5/32 2-7/ /8 1-17/ D60R95 R /4 3-5/32 2-7/ /8 1-17/ D60R96 R /4 3-5/32 2-7/ /8 1-17/ Sprockets with H suffix have hardened teeth. E-66

67 All Steel No " Pitch Triple - Type B & C 2.8" Length Thru Bore.444" 2.8" Length Thru Bore TYPE C.444" Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 E60B11H B E60B12H B E60BH B E60B14H B E60BH B E60B16H B E60B17H B E60B18H B E60B19H B E60B20H B E60B21H B E60B22H B E60BH B E60B24H 6.0 B E60B25H B E60B B E60B B E60B B E60B B E60B B E60B 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 25 teeth or less have hardened teeth. As indicated by H suffix. Alteration Charges See current discount sheet for alteration charges. QD QD 1 Triple - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T W Only 36 E60E36 E B E60E42 E B E60E52 E B E60E68 E B E60E76 E B E60E95 E B E-67

68 No " Pitch MST Sprockets 2.8" 2.8" 2.8" 2.8" TYPE 22 TYPE 24 TYPE 25 TYPE 27 Triple - MST Sprockets Diameters Dimensions Weight Lbs. 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-/32 2-/ / / E60P14H P /4 3-29/32 2-/16 1-/ / E60PH P /4 3-29/32 2-/16 1-/ / E60P16H P /4 3 1/8 1-/16 /16 3 5/ E60Q17H Q / /2 /32 4-1/8 1-21/ E60Q18H Q /16 4-3/16 3-1/2 /32 4-1/8 1-21/ E60Q19H Q /16 4-3/16 3-1/2 /32 4-1/8 1-21/ E60Q20H Q /16 4-3/16 3-1/2 /32 4-1/8 1-21/ E60Q21H Q /16 3-1/4 2-1/2 /32 4-1/8 3/ E60Q22H Q /16 3-1/4 2-1/2 /32 4-1/8 3/ E60QH Q / /32 2-1/ /8 1/ E60Q24H Q / /32 2-1/ /8 1/ E60Q25H Q / /32 2-1/ /8 1/ E60Q26H Q / /32 2-1/ /8 1/ E60Q27H Q / /32 2-1/ /8 1/ E60Q28H Q / /32 2-1/ /8 1/ E60R30H R /4 3-5/32 2-7/ /8 5/ E60R32H R /4 3-5/32 2-7/ /8 5/ E60R35H R /4 3-5/32 2-7/ /8 5/ E60R36H R /4 3-5/32 2-7/ /8 5/ E60R40 R /4 3-5/32 2-7/ /8 5/ E60R42 R /4 3-5/32 2-7/ /8 5/ E60R52 R /4 3-5/32 2-7/ /8 5/ Sprockets with H suffix have hardened teeth. E-68

69 All Steel No. 80 1" 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 BS10W BS BS11W BS BS12W BS BS BS BSW BS BS BS BS18W 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. NOTE: KEYWAY IS ON CENTER LINE OF TOOTH W = Winch Sprockets KW One S.S. at 90 E-69

70 No. 80 1" Pitch All Steel Single Type BS Winch 1 Setscrew.575" 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 10 80BS10W BS11W BS12W BSW BS18W NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. Double Type BS Winch (Hardened Teeth) 1 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 12 D80BS12HW Length Thru Bore SINGLE S 1.710".557" D80BSHW D80BS18HW D80BS20HW D80BS24HW NOTE: KEYWAY IS ON CENTER LINE OF TOOTH. Footnote: 1 1 4" bore has a " keyway 1 1 2" bore has a " keyway 1 3 4" bore has a " keyway 2" bore has a " keyway Length Thru Bore DOUBLE S 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 9 80BS9HT BS10HT BS11HT BS12HT BSHT BS14HT BSHT BS16HT BS17HT BS18HT BS19HT 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..575" Length Thru Bore S.575" Single - Type C Steel Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) 11 80C C C C C C Has recessed groove in hub for chain clearance. E-70 Length Thru Bore TYPE C

71 All Steel No. 80 1" Pitch Double Single - Type A Steel TYPE A 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 Double Single - Taper Bushed Steel TAPER BUSH TYPE A Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L 1 C E L 2 Nom. Only 17 DS80ATB17H A DS80ATB18H A DS80ATB19H A DS80ATB20H A DS80ATB21H A DS80ATB22H A DS80ATBH A Sprockets with H suffix have hardened teeth. 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 1 C E L 2 Nom. Only MST 17 DS80Q17H Q B DS80Q19H Q B DS80Q20H Q B DS80R21H R B DS80RH R B Sprockets with H suffix have hardened teeth. E-71

72 No. 80 1" Pitch Stainless Steel.575".575" TYPE A Length Thru Bore 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. Thru (Approx.) Type Number Bore (Approx.) 10 80B10SS B B11SS B B12SS B A 80A12SS BSS B A 80ASS B14SS B A 80A14SS BSS B A 80ASS B16SS B A 80A16SS B17SS B A 80A17SS B18SS B A 80A18SS B19SS B A 80A19SS B20SS B A 80A20SS B21SS B A 80A21SS B22SS B A 80A22SS BSS B A 80ASS B24SS B A 80A24SS B25SS B A 80A25SS B26SS B A 80A26SS B30SS B A 80A30SS B35SS B A 80A35SS B40SS.310 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 No. 80 1" Pitch TYPE A TYPE C.575".575" Length Thru Bore LengthThru Bore.575" 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.) 8 80B B 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 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 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 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 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 C C A 80A C C A 80A 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-73

74 No. 80 1" Pitch All Steel Single - Type QD With Hardened Teeth No. Teeth Catalog Number 11 80SH11H 12 80SH12H 80SDSH 14 80SDS14H 80SKH 16 80SK16H 17 80SK17H 18 80SK18H 19 80SK19H 20 80SF20H 21 80SF21H 22 80SF22H 80SFH 24 80SF24H 25 80SF25H 26 80SF26H 27 80SF27H 28 80SF28H 30 80SF30H S A B E R T O O T H QD QD TYPE C Single - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G X T Only 11 80SH11 SH B SH12 SH B SDS SDS B SDS14 SDS B SK SK B SK16 SK B SK17 SK B SK18 SK B SK19 SK B SF20 SF B SF21 SF B SF22 SF B SF SF B SF24 SF B SF25 SF B SF26 SF B SF27 SF B SF28 SF B SF30 SF B SF32 SF B SF33 SF B SF34 SF B SF35 SF B SF36 SF B SF40 SF B SF42 SF B SF45 SF B SF48 SF B SF54 SF B SF60 SF B E70 E C E72 E C E80 E C E84 E C E96 E C F112 F C E-74

75 All Steel No. 80 1" Pitch Single - Taper Bushed with Hardened Teeth.575" No. Catalog Teeth Number 10 80BTB10H 11 80BTB11H 12 80BTB12H 80BTBH 14 80BTB14H 80BTBH 16 80BTB16H 17 80BTB17H 18 80BTB18H 19 80BTB19H 20 80BTB20H 21 80BTB21H 22 80BTB22H 80BTBH 24 80BTB24H 25 80BTB25H 26 80BTB26H 27 80BTB27H 28 80BTB28H 30 80BTB30H S A B E R T O O T H Single - Taper Bushed Diameter Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 10 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 BTB B Has recessed groove in hub for chain clearance. E-75

76 No. 80 1" Pitch MST Sprockets Single - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 10 80H10H H /2 2-3/32 1-1/4 21/32 2-1/2 1-21/ H11H H /2 1-1/2 1-1/4 1/16 2-1/2 3/ P11H P /4 2-11/32 1-/16 5/ / P12H P /4 2-3/16 1-/ / PH P /4 2-3/16 1-/ / P14H P /4 2-3/16 1-/ / Q14H Q / /32 2-1/ /8 1-/ PH P /4 2-3/16 1-/ / QH Q / /32 2-1/ /8 1-/ P16H P /4 2-3/16 1-/ / Q16H Q / /32 2-1/ /8 1-/ P17H P /4 2-3/16 1-/ / Q17H Q / /32 2-1/ /8 1-/ P18H P /4 2-3/16 1-/ / Q18H Q / /32 2-1/ /8 1-/ P19H P /4 2-3/16 1-/ / Q19H Q / /32 2-1/ /8 1-/ Q20H Q / /32 2-1/ /8 1-/ Q21H Q / /32 2-1/ /8 1-/ Q22H Q / /32 2-1/ /8 1-/ QH Q / /32 2-1/ /8 1-/ Q24H Q / /32 2-1/ /8 1-/ Q25H Q / /32 2-1/ /8 1-/ Q26H Q / /32 2-1/ /8 1-/ Q27H Q / /32 2-1/ /8 1-/ Q28H Q / /32 2-1/ /8 1-/ Q29H Q / /32 2-1/ /8 1-/ Q30H Q / /32 2-1/ /8 1-/ Q31 Q / /32 2-1/ /8 1-/ Q32 Q / /32 2-1/ /8 1-/ Q33 Q / /32 2-1/ /8 1-/ Q34 Q / /32 2-1/ /8 1-/ Q35 Q / /32 2-1/ /8 1-/ Q36 Q / /32 2-1/ /8 1-/ R36 R /4 3-5/32 2-7/ /8 2-5/ Q37 Q / /32 2-1/ /8 1-/ Q38 Q / /32 2-1/ /8 1-/ R39 R /4 3-5/32 2-7/ /8 2-5/ Q40 Q / /32 2-1/ /8 1-/ R40 R /4 3-5/32 2-7/ /8 2-5/ R41 R /4 3-5/32 2-7/ /8 2-5/ Q42 Q / /32 2-1/ /8 1-/ R42 R /4 3-5/32 2-7/ /8 2-5/ R44 R /4 3-5/32 2-7/ /8 2-5/ Q45 Q / /32 2-1/ /8 1-/ R45 R /4 3-5/32 2-7/ /8 2-5/ R47 R /4 3-5/32 2-7/ /8 2-5/ Q48 Q / /32 2-1/ /8 1-/ R48 R /4 3-5/32 2-7/ /8 2-5/ R50 R /4 3-5/32 2-7/ /8 2-5/ Q54 Q / /32 2-1/ /8 1-/ R54 R /4 3-5/32 2-7/ /8 2-5/ R56 R /4 3-5/32 2-7/ /8 2-5/ Q60 Q / /32 2-1/ /8 1-/ R60 R /4 3-5/32 2-7/ /8 2-5/ Q70 Q / /32 2-1/ /8 2-5/ R70 R /4 3-5/32 2-7/ /8 2-5/ Q72 Q / /32 2-1/ /8 2-5/ R72 R /4 3-5/32 2-7/8 1-7/16 5-3/8 7/ R80 R /4 3-5/32 2-7/8 1-7/16 5-3/8 7/ R84 R /4 3-5/32 2-7/8 1-7/16 5-3/8 7/ R96 R /4 3-5/32 2-7/8 1-7/16 5-3/8 7/ S112 S /4 4-3/4 4-3/8 2-3/4 6-3/8 1-1/ Sprockets with H suffix have hardened teeth. D.E. TYPE 3 TYPE 4 TYPE 5 E-76

77 All Steel No " Pitch 1.710" 1.710".557".557" Length Thru Bore Length Thru Bore TYPE C Double - Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 10 D80B10H B D80B11H B D80B12H B D80BH B D80B14H B D80BH B D80B16H B D80B17H B D80B18H B D80B19H B D80B20H B D80B21H B D80B22H B D80BH B D80B24H B D80B25H B D80B B D80B B D80B B D80B B D80B B D80B B D80B B D80C 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 25 teeth or less have hardened teeth, as indicated by H suffix. QD TYPE C 1 QD TYPE C 3 QD TYPE C 4 Alteration Charges See current discount sheet for alteration charges. Double - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T W Only 36 D80E36 E C D80E42 E C D80E45 E C D80E52 E C D80E60 E C D80E68 E C D80E76 E C D80F95 F C E-77

78 No " Pitch All Steel 1.710" 1.710" 1.710" 1.710" C C C C L L L L TYPE A TYPE C TYPE C 1 Double - Taper Bushed Diameter Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only D80ATBH A D80ATB14H A D80ATBH A D80ATB16H A D80ATB17H A D80ATB18H A D80BTB19H B D80BTB20H B D80BTB21H B D80BTB25H B D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C D80CTB C NOTE: Double 80 stock sprockets with 25 teeth or less have hardened teeth, as indicated by H suffix. E-78

79 MST Sprockets No " Pitch 1.710" 1.710" 1.710" 1.710" D.E. D.E. TYPE 12 TYPE TYPE TYPE 16 Double - MST Sprockets Diameters Dimensions Weight Lbs. 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 2-19/32 1-/16 /32 3 5/ D80Q14H Q /8 4 5/8 3-1/2 27/32 4-1/8 1-3/ D80QH Q /8 3-25/32 3-1/ /8 / D80Q16H Q / /32 2-1/ /8 3/ D80Q17H Q / /32 2-1/ /8 3/ D80Q18H Q / /32 2-1/ /8 3/ D80Q19H Q / /32 2-1/ /8 3/ D80R20H R /4 3-5/32 2-7/ /8 1-5/ D80R21H R /4 3-5/32 2-7/ /8 1-5/ D80R22H R /4 3-5/32 2-7/ /8 1-5/ D80RH R /4 3-5/32 2-7/ /8 1-5/ D80R24H R /4 3-5/32 2-7/ /8 1-5/ D80R25H R /4 3-5/32 2-7/ /8 1-5/ D80R26 R /4 3-5/32 2-7/ /8 1-5/ D80R27 R /4 3-5/32 2-7/ /8 1-5/ D80R28 R /4 3-5/32 2-7/ /8 1-5/ D80R30 R /4 3-5/32 2-7/ /8 1-5/ D80R36 R /4 3-5/32 2-7/ /8 1-5/ D80R42 R /4 3-5/32 2-7/ /8 1-5/ D80R45 R /4 3-5/32 2-7/ /8 1-5/ D80R48 R /8 5-5/32 4-7/8 2-9/32 5-3/8 7/ D80R52 R /8 5-5/32 4-7/8 2-9/32 5-3/8 7/ D80R54 R /8 5-5/32 4-7/8 2-9/32 5-3/8 7/ D80R60 R /8 5-5/32 4-7/8 2-9/32 5-3/8 7/ D80R68 R /8 5-5/32 4-7/8 2-9/32 5-3/8 7/ D80R72 R /8 5-5/32 4-7/8 2-9/32 5-3/8 7/ D80U76 U /2 5-/32 5-1/4 2-1/32 8-3/8 1-1/ D80U95 U /2 5-/32 5-1/4 2-1/32 8-3/8 1-1/ Sprockets with H suffix have hardened teeth. E-79

80 No " Pitch All Steel 2.863" Length Thru Bore.557" 2.863" Length Thru Bore TYPE C.557" Triple - Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 E80B11H B E80B12H B E80BH B E80B14H B E80BH B E80B16H B E80B17H B E80B18H B E80B19H B E80B20H B E80B21H B E80B22H B E80BH B E80B24H B E80B25H B E80B B E80B B E80B B E80B B E80C C E80C C E80C 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. Alteration Charges See current discount sheet for alteration charges. QD 1 Triple - Type QD Diameters Dimensions Weight Lbs.(Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T W Only 36 E80E36 E B E80E42 E B E80E45 E B E80E52 E B E80F60 F B E80F68 F B E80F76 F B E80F95 F B NOTE: Triple 80 stock sprockets with 25 teeth or less have hardened teeth. E-80

81 MST Sprockets No " Pitch 2.863" 2.863" 2.863" 2.863" TYPE 22 TYPE 24 TYPE 25 TYPE 27 Triple - MST Sprockets Diameters Dimensions Weight Lbs. 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 3-3/4 2-/16 9/16 3 5/ E80Q14H Q /8 5-25/32 3-1/ /8 1-3/ E80QH Q /8 4-29/32 3-1/2 1-1/8 4-1/8 1-3/ E80Q16H Q /8 3-7/8 3-1/2 3/32 4-1/8 3/ E80Q17H Q /8 3-29/32 3-1/2 1/8 4-1/8 3/ E80Q18H Q /8 3-29/32 3-1/2 1/8 4-1/8 3/ E80Q19H Q /8 3-29/32 3-1/2 1/8 4-1/8 3/ E80R20H R /4 4-1/32 2-7/8 7/8 5-3/8 7/ E80R21H R /4 4-1/32 2-7/8 7/8 5-3/8 7/ E80R22H R /4 4-1/32 2-7/8 7/8 5-3/8 7/ E80RH R /4 3-5/32 2-7/ / E80R24 R /4 3-5/32 2-7/ / E80R25 R /4 3-5/32 2-7/ / E80R26 R /4 3-5/32 2-7/ / E80R27 R /4 3-5/32 2-7/ / E80R28 R /4 3-5/32 2-7/ / E80R30 R /4 3-5/32 2-7/ / E80S36 S /4 5-1/8 4-3/ /8 1-1/ E80S42 S /4 5-1/8 4-3/ /8 1-1/ E80S45 S /4 5-1/8 4-3/ /8 1-1/ E80U52 U /2 5-/32 5-1/ /8 1-25/ E80U60 U /2 5-/32 5-1/ /8 1-25/ E80U68 U /2 5-/32 5-1/ /8 1-25/ E80U76 U /2 5-/32 5-1/ /8 1-25/ E80U95 U /2 5-55/64 5-1/4 1/32 8-3/8 1-/ Sprockets with H suffix have hardened teeth. E-81

82 No " Pitch All Steel.692" BORED-TO-SIZE Length Thru Bore S 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 Setscrews 8 100BS 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.) C C C C C Length Thru Bore TYPE C E-82

83 All Steel No " Pitch Double Single - Type A Steel TYPE A Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Lbs. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS100A A DS100A A DS100A A DS100A A DS100A A DS100A A DS100A A DS100A A DS100A A Double Single - Taper Bushed Steel TAPER BUSH TYPE A Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L 1 C E L 2 Nom. Only DS100ATBH A DS100ATB16H A DS100ATB17H A DS100ATB18H A DS100ATB19H A DS100ATB20H A DS100ATB21H A Sprockets with H suffix have hardened teeth. Double Single - MST Steel MST Diameters Dimensions Wt. No. Catalog Bushing Outside Pitch Min. Max. w Rim Teeth Number Size Diameter Diameter Bore Bore Type L 1 C E L 2 Nom. Only 17 DS100R17H R B DS100R19H R B DS100R21H R B Sprockets with H suffix have hardened teeth. E-83

84 No " Pitch Stainless Steel.692".692".692" TYPE A Length Thru Bore Length Thru Bore 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. Diameter Thru (Approx.) Type Number Bore (Approx.) B11SS B B12SS B BSS B B14SS 6.0 B BSS B B16SS B A 100A16SS B17SS B A 100A17SS B18SS B A 100A18SS B19SS B A 100A19SS B20SS B A 100A20SS B21SS B A 100A21SS 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 No " Pitch TYPE A TYPE C.692".692" Length Thru Bore Length Thru Bore.692" Alteration Charges See current discount sheet for alteration charges. 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.) A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A B B A 100A A 100A B B A 100A A 100A A 100A B B A 100A B B A 100A A 100A B B A 100A B B A 100A B B A 100A A 100A B B A 100A A 100A A 100A B B A 100A A 100A A 100A B B A 100A A 100A A 100A A 100A A 100A A 100A C C A 100A A 100A A 100A A 100A A 100A A 100A C C A 100A C C A 100A C C A 100A C C A 100A C C A 100A C C A 100A C C A 100A C C A 100A 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-85

86 No " Pitch All Steel Single - Type QD With Hardened Teeth No. Catalog S Teeth Number A B E R SDS11H SDS12H 100SKH SK14H 100SFH SF16H SF17H E18H E19H E20H E21H E22H 100EH E24H E25H E26H E27H E28H E30H T O O T H QD QD 1 QD TYPE C Single - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G X T Only SDS11 SDS B SDS12 SDS B SK SK B SK14 SK B SF SF B SF16 SF B SF17 SF B E18 E B E19 E B E20 E B E21 E B E22 E B E E B E24 E B E25 E B E26 E B E27 E B E28 E B E30 E B E32 E B E35 E B E36 E B E40 E B E42 E B E45 E B E48 E B E54 E C E60 E C F70 F C F72 F C F80 F C F84 F C E-86

87 All Steel No " Pitch Single - Taper Bushed with Hardened Teeth S A B E R T O O T H No. Catalog Teeth Number BTB11H BTB12H 100BTBH BTB14H 100BTBH BTB16H BTB17H BTB18H BTB19H BTB20H BTB21H BTB22H BTB24H BTB26H BTB28H BTB30H.692" Length Thru Bore Single - Taper Bushed Diameter Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 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 E-87

88 No " Pitch MST Sprockets Single - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only P11H P /4 2-3/16 1-/ / Q12H Q / /32 2-1/2 1/16 4-1/8 1-7/ QH Q / /32 2-1/2 1/16 4-1/8 1-7/ Q14H Q / /32 2-1/2 4-1/8 1-/ QH Q / /32 2-1/2 4-1/8 1-/ Q16H Q / /32 2-1/2 4-1/8 1-/ Q17H Q / /32 2-1/2 4-1/8 1-/ Q18H Q / /32 2-1/2 4-1/8 1-/ Q19H Q / /32 2-1/2 4-1/8 1-/ Q20H Q / /32 2-1/2 4-1/8 1-/ Q21H Q / /32 2-1/2 4-1/8 1-/ R21H R /4 3-5/32 2-7/8 5-3/8 2-3/ Q22H Q / /32 2-1/2 4-1/8 1-/ QH Q / /32 2-1/2 4-1/8 1-/ Q24H Q / /32 2-1/2 4-1/8 1-/ R24H R /4 3-5/32 2-7/8 5-3/8 2-3/ Q25H Q / /32 2-1/2 4-1/8 1-/ R25H R /4 3-5/32 2-7/8 5-3/8 2-3/ Q26H Q / /32 2-1/2 4-1/8 1-/ R26H R /4 3-5/32 2-7/8 5-3/8 2-3/ Q27H Q / /32 2-1/2 4-1/8 1-/ R27H R /4 3-5/32 2-7/8 5-3/8 2-3/ Q28H Q / /32 2-1/2 4-1/8 1-/ R28H R /4 3-5/32 2-7/8 5-3/8 2-3/ Q30H Q / /32 2-1/2 4-1/8 1-/ R30H R /4 3-5/32 2-7/8 5-3/8 2-3/ Q32 Q / /32 2-1/2 4-1/8 1-/ R32 R /4 3-5/32 2-7/8 5-3/8 2-3/ Q35 Q / /32 2-1/2 4-1/8 1-/ R35 R /4 3-5/32 2-7/8 5-3/8 2-3/ R36 R /4 3-5/32 2-7/8 5-3/8 2-3/ R40 R /4 3-5/32 2-7/8 5-3/8 2-3/ R42 R /4 3-5/32 2-7/8 5-3/8 2-3/ R45 R /4 3-5/32 2-7/8 5-3/8 2-3/ R48 R /4 3-5/32 2-7/8 5-3/8 2-3/ R54 R /4 3-5/32 2-7/8 1-5/16 5-3/8 7/ R60 R /4 3-5/32 2-7/8 1-5/16 5-3/8 7/ R70 R /4 3-5/32 2-7/8 1-5/16 5-3/8 7/ R72 R /4 3-5/32 2-7/8 1-5/16 5-3/8 7/ R80 R /4 3-5/32 2-7/8 1-5/16 5-3/8 7/ R84 R /4 3-5/32 2-7/8 1-5/16 5-3/8 7/ Sprockets with H suffix have hardened teeth. E-88

89 All Steel No " Pitch Double - Type B & C 2.077" Length Thru Bore.669" 2.077" Length Thru Bore TYPE C.669" Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 9 D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100B B D100C C D100C C D100C C D100C C D100C 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 2 QD TYPE C 6 Alteration Charges See current discount sheet for alteration charges. Double - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T W Only 35 D100F35 F C D100F45 F C D100J60 J C D100J70 J C D100J80 J C E-89

90 No " Pitch MST Sprockets 2.077" 2.077" 2.077" 2.077" D.E. TYPE 12 TYPE 14 TYPE TYPE 18 Double - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 11 D100P11H P /4 2-/16 1-/16 3/4 3 5/ D100Q12H Q /8 4-7/32 3-1/2 7/16 4-1/8 1-55/ D100QH Q /8 4-7/32 3-1/2 7/16 4-1/8 1-55/ D100Q14H Q /16 3-3/32 2-1/2 5/16 4-1/8 3/ D100QH Q /16 3-3/32 2-1/2 5/16 4-1/8 3/ D100Q16H Q /16 3-3/32 2-1/2 5/16 4-1/8 3/ D100R17H R /4 3-7/32 2-7/8 1/16 5-3/8 7/ D100R18H R /4 3-7/32 2-7/8 1/16 5-3/8 7/ D100R19 R /4 3-7/32 2-7/8 1/16 5-3/8 7/ D100R20 R /4 3-7/32 2-7/8 1/16 5-3/8 7/ D100R21 R /4 3-7/32 2-7/8 1/16 5-3/8 7/ D100R22 R /4 3-7/32 2-7/8 1/16 5-3/8 7/ D100R24 R /4 3-7/32 2-7/8 1/16 5-3/8 7/ D100R35 R /4 3-7/32 2-7/8 1/16 5-3/8 7/ D100S45 S /4 4-3/4 4-3/8 1-/64 6-3/8 1-1/ D100S60 S /4 4-3/4 4-3/8 1-/64 6-3/8 1-1/ D100S70 S /4 7-1/8 6-3/4 2-1/4 6-3/8 2-7/ D100S80 S /4 7-1/8 6-3/4 2-1/4 6-3/8 2-7/ Sprockets with H suffix have hardened teeth. E-90

91 All Steel No " Pitch 3.485" 3.485".669".669" Length Thru Bore Length Thru Bore TYPE C Triple - Type B & C QD 1 QD TYPE C 3 Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100B B E100C C E100C C E100C C E100C C E100C 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. Alteration Charges See current discount sheet for alteration charges. Triple - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T W Only 35 E100F35 F B E100F45 F B E100J60 J C E100J70 J C E100J80 J C E-91

92 No " Pitch All Steel.924".924".924" TYPE A Length Thru Bore Length Thru Bore 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 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A B B A 120A A 120A B B A 120A B B A 120A B B A 120A A 120A A 120A B B A 120A B B A 120A C C A 120A C C A 120A C C A 120A C C A 120A C C A 120A C C A 120A C C A 120A C C A 120A A 120A 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 No " Pitch Single - Type QD With Hardened Teeth S A B E R T O O T H No. Catalog Teeth Number SF12H 120SFH SF14H 120SFH E16H E17H E18H E19H E20H E21H E22H 120EH E24H E25H E26H E28H E30H QD QD 1 QD TYPE C Single - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G X T Only SF12 SF B SF SF B SF14 SF B SF SF B E16 E B E17 E B E18 E B E19 E B E20 E B E21 E B E22 E B E E B E24 E B E25 E B E26 E B E28 E B E30 E B F32 F C F35 F C F36 F C F40 F C F42 F C F45 F C F48 F C F54 F C J60 J C J70 J C J80 J C E-93

94 No " Pitch All Steel Single - Taper Bushed Diameter Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 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 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 BTB12 H 120BTB H BTB14 H 120BTB H BTB16 H BTB17 H BTB18 H BTB19 H BTB20 H BTB21 H BTB24 H BTB26 H BTB30 H T O O T H L.924" C.924" C Single - Type C Steel 1 1 2" Pitch L TYPE C Bore (inches) (inches) Weight No. Catalog Outside Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) C C C C Double Single - Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Lbs. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS120A A DS120A A DS120A A DS120A A DS120A A DS120A A E-94 W L L C TYPE A E

95 MST Sprockets No " Pitch TYPE 4 TYPE 5 TYPE 6 Single - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only Q11H Q / /32 2-1/2 4-1/8 1 9/ Q12H Q / /32 2-1/2 4-1/8 1 9/ QH Q / /32 2-1/2 4-1/8 1 9/ Q14H Q / /32 2-1/2 4-1/8 1 9/ QH Q / /32 2-1/2 4-1/8 1 9/ Q16H Q / /32 2-1/2 4-1/8 1-/ R16H R /4 3-5/32 2-7/8 5-3/8 1-/ Q17H Q / /32 2-1/2 4-1/8 1-/ R17H R /4 3-5/32 2-7/8 5-3/8 1-/ Q18H Q / /32 2-1/2 4-1/8 1-/ R18H R /4 3-5/32 2-7/8 5-3/8 1-/ R19H R /4 3-5/32 2-7/8 5-3/8 1-/ R20H R /4 3-5/32 2-7/8 5-3/8 1-/ R21H R /4 3-5/32 2-7/8 5-3/8 1-/ R22H R /4 3-5/32 2-7/8 5-3/8 1-/ RH R /4 3-5/32 2-7/8 5-3/8 1-/ R24H R /4 3-5/32 2-7/8 5-3/8 1-/ R25H R /4 3-5/32 2-7/8 5-3/8 1-/ R26H R /4 3-5/32 2-7/8 1-1/16 5-3/8 7/ R28H R /4 3-5/32 2-7/8 1-1/16 5-3/8 7/ R30H R /4 3-5/32 2-7/8 1-1/16 5-3/8 7/ R32 R /4 3-5/32 2-7/8 1-1/16 5-3/8 7/ R35 R /8 5-5/32 4-7/ /8 1-/ R36 R /8 5-5/32 4-7/ /8 1-/ R40 R /8 5-5/32 4-7/ /8 1-/ S40 S /4 4-3/4 4-3/8 2-3/8 6-3/8 1-1/ S42 S /4 4-3/4 4-3/8 2-3/8 6-3/8 1-1/ R45 R /8 5-5/32 4-7/ /8 1-/ S45 S /4 4-3/4 4-3/8 2-3/8 6-3/8 1-1/ S48 S /4 4-3/4 4-3/8 2-3/8 6-3/8 1-1/ S54 S /4 4-3/4 4-3/8 2-3/8 6-3/8 1-1/ R60 R /8 5-5/32 4-7/ /8 1-/ S60 S /4 4-3/4 4-3/8 2-3/8 6-3/8 1-1/ R70 R /8 5-5/32 4-7/ /8 1-/ S70 S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-/ R80 R /8 5-5/32 4-7/ /8 1-/ S80 S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-/ Sprockets with H suffix have hardened teeth. E-95

96 No " Pitch All Steel Double - Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120B B D120C C D120C C D120C C " Length Thru Bore.894" 2.683" Length Thru Bore TYPE C.894" 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 5 QD TYPE C 6 Alteration Charges See current discount sheet for alteration charges. Double - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T W Only 30 D120J30 J C D120J35 J C D120J45 J C D120M60 M C E-96

97 MST Sprockets No " Pitch 2.683" 2.683" TYPE TYPE 18 Double - MST Sprockets Diameters Dimensions Weight Lbs. No. Catalog Bush- Outside Pitch Type Max. (Approx.) Teeth Number ing Bore OL L C H P T(nom) With Rim Only 30 D120S30 S /4 4-3/4 4-3/8 5/8 6-3/8 1-1/ D120S35 S /4 4-3/4 4-3/8 5/8 6-3/8 1-1/ D120S45 S /16 7-1/8 6-3/4 1-27/32 6-3/8 2-7/ D120U60 U /2 5-/32 5-1/4 1-9/32 8-3/8 19/ Sprockets with H suffix have hardened teeth. E-97

98 No " Pitch All Steel.924" TYPE A.924" 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.) B B A 140A B B A 140A B 8.0 B A 140A B B A 140A B B A 140A B B A 140A B B A 140A B B A 140A B B A 140A B B A 140A B B A 140A B B A 140A B.780 B A 140A B B A 140A B B A 140A B B A 140A B B A 140A B B A 140A B B A 140A A B B A 140A C C A 140A A 140A C C A 140A C C A 140A C C A 140A C C A 140A C C A 140A C C A 140A C C A 140A 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 Bore.924" Alteration Charges See current discount sheet for alteration charges. Length Thru Bore TYPE C E-98

99 All Steel No " Pitch QD QD 1 QD TYPE C QD TYPE C 1 Single - Type QD With Hardened Teeth S A B E R T O O T H No. Catalog Teeth Number SF11 H SF12 H 140SF H E14 H 140E H E16 H E17 H E18 H E19 H E20 H E21 H E22 H 140F H F24 H F25 H F26 H F30 H Single - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T Only SF11 SF B SF12 SF B SF SF B E14 E B E E B E16 E B E17 E B E18 E B E19 E B E20 E B E21 E B E22 E B F F B F24 F B F25 F B F26 F B F30 F B F35 F C F36 F C J40 J C J45 J C J48 J C J54 J C J60 J C M70 M C M80 M C E-99

100 No " Pitch All Steel Single - Taper Bushed with Hardened Teeth No. Catalog S Teeth Number AB BTB12 H.924" 140BTB H BTB14 H 140BTB H E R C BTB16 H BTB17 H T O OT BTB18 H BTB19 H BTB21 H BTB26 H H L Single - Taper Bushed Diameter Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 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 " C L TYPE C Double Single - Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Lbs. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) 14 DS140A A DS140A A DS140A A DS140A A DS140A A W L L E C TYPE A E-100

101 MST Sprockets No " Pitch TYPE 4 TYPE 5 TYPE 6 Single - MST Sprockets Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Type Max. Teeth Number ing Bore OL L C H P T(nom) With Rim Only Q11H Q / /32 2-1/2 4-1/8 1-9/ Q12H Q / /32 2-1/2 4-1/8 1-9/ RH R /4 3-5/32 2-7/8 5-3/8 1-/ R14H R /4 3-5/32 2-7/8 5-3/8 1-/ RH R /4 3-5/32 2-7/8 5-3/8 1-1/ R16H R /4 3-5/32 2-7/8 5-3/8 1-1/ R17H R /4 3-5/32 2-7/8 5-3/8 1-/ R18H R /4 3-5/32 2-7/8 5-3/8 1-/ R19H R /4 3-5/32 2-7/8 5-3/8 1-/ R20H R /4 3-5/32 2-7/8 5-3/8 1-/ R21H R /4 3-5/32 2-7/8 5-3/8 1-/ R22H R /4 3-5/32 2-7/8 1-1/16 5-3/8 7/ RH R /4 3-5/32 2-7/8 1-1/16 5-3/8 7/ R24H R /4 3-5/32 2-7/8 1-1/16 5-3/8 7/ R25H R /4 3-5/32 2-7/8 1-1/16 5-3/8 7/ R26H R /4 3-5/32 2-7/8 1-1/16 5-3/8 7/ R30H R /8 5-5/32 4-7/ /8 7/ R35 R /8 5-5/32 4-7/ /8 7/ R36 R /8 5-5/32 4-7/ /8 7/ S36 S /4 43/4 4-3/8 2-3/8 6-3/8 1-1/ R40 R /8 5-5/32 4-7/ /8 7/ S40 S /4 4-3/4 4-3/8 2-3/8 6-3/8 1-1/ S45 S /4 4-3/4 43/8 2-3/8 6-3/8 1-1/ S48 S /16 7-1/2 6-3/4 2-7/8 6-3/8 2-/ S54 S /16 7-1/2 6-3/4 2-7/8 6-3/8 2-/ S60 S /16 7-1/2 6-3/4 2-7/8 6-3/8 2-/ S70 S /16 7-1/2 6-3/4 2-7/8 6-3/8 2-/ S80 S /16 7-1/2 6-3/4 2-7/8 6-3/8 2-/ Sprockets with H suffix have hardened teeth. E-101

102 No " Pitch All Steel Double - Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) D140B 8.0 B D140B B D140B B D140B B D140B B D140B B D140B B D140B B D140B B D140B B D140B.780 B D140B B D140B B D140B B D140C C D140C C D140C 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 Bore.894" 2.818" Length Thru Bore TYPE C.894" QD TYPE C 5 QD TYPE C 6 Alteration Charges See current discount sheet for alteration charges. Double - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T W Only 35 D140J35 J C D140J45 J C D140M60 M C E-102

103 All Steel No " Pitch 1.6" Alteration Charges See current discount sheet for alteration charges. TYPE A Single - Type B & C Single - Type A Plate 1.6" Length Thru Bore 1.6" 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 160B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B.750 B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A B B A 160A C C A 160A C C A 160A C C A 160A C C A 160A C C A 160A C C A 160A C C A 160A Single - Type C Steel 2" Pitch No. Catalog Outside Bore (inches) (inches) Weight Lbs. Teeth Number Diameter Stock Rec. Max. Diameter Length (Approx.) C " 3 1 4" 4 1 2" 4 1 " C " 3 3 4" 5 1 2" 4 1 " 26.0 Length Thru Bore TYPE 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. E-103

104 No " Pitch All Steel Single - Type QD With Hardened Teeth No. Catalog S Teeth Number A B E R E12 H 160E H E14 H 160F H F16 H F17 H F18 H F19 H F20 H F21 H F22 H 160F H F24 H F25 H J26 H J28 H J30 H T O O T H QD 1 QD TYPE C QD TYPE C 1 Single - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T Only E12 E B E E B E14 E B F F B F16 F B F17 F B F18 F B F19 F B F20 F B F21 F B F22 F B F F B F24 F B F25 F B J26 J C J28 J C J30 J C J35 J C M40 M C M45 M C M54 M C M60 M C M70 M C M80 M C E-104

105 All Steel No " Pitch 1.6" Single - Taper Bushed with Hardened Teeth S A B E R No. Catalog Teeth Number BTB11H BTB12H 160BTBH C BTB14H 160BTBH BTB16H BTB17H T O O T H BTB18H BTB19H BTB21H BTB26H L 1.6" Single - Taper Bushed C Diameter Dimensions Weight Lbs. (Approx.) No. Catalog Outside Pitch Max. Rim Bushing Teeth Number Bushing Diameter Diameter Bore L C Type Only Only 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 L TYPE C Double Single - Type A Steel Diameters Dimensions No. Catalog Outside Pitch Min. Max. w Wt. Lbs. Teeth Number Diameter Diameter Type Bore Bore L C E Nom. (Approx.) DS160A A DS160A A DS160A A DS160A A TYPE A E-105

106 No " Pitch MST Sprockets TYPE 4 TYPE 6 Single - MST Sprockets Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Type Max. Teeth Number ing Bore OL L C H P T(nom) With Rim Only R11H R /4 3-/32 2-7/8 1/4 5-3/8 1-31/ R12H R /4 3-/32 2-7/8 1/4 5-3/8 1-31/ RH R /4 3-5/32 2-7/8 5-3/8 1-/ R14H R /4 3-5/32 2-7/8 5-3/8 1-/ RH R /4 3-5/32 2-7/8 5-3/8 1-/ R16H R /4 3-5/32 2-7/8 5-3/8 1-/ R17H R /4 3-5/32 2-7/8 5-3/8 1-/ R18H R /4 3-5/32 2-7/8 5-3/8 1-/ R19H R /4 3-5/32 2-7/8 5-3/8 1-/ R20H R /8 5-5/32 4-7/ /8 1-/ R21H R /8 5-5/32 4-7/ /8 1-/ R22H R /8 5-5/32 4-7/ /8 1-/ RH R /8 5-5/32 4-7/ /8 1-/ R24H R /8 5-5/32 4-7/ /8 1-/ R25H R /8 5-5/32 4-7/ /8 1-/ R26H R /8 5-5/32 4-7/ /8 1-/ S26H S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-/ R28H R /8 5-5/32 4-7/ /8 1-/ S28H S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-/ R30H R /8 5-5/32 4-7/ /8 1-/ S30H S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-/ S35 S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-/ S40 S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-/ S45 S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-/ U60 U /2 5 25/32 5-1/4 1-/16 8-3/8 1-21/ U70 U /2 5 25/32 5-1/4 1-/16 8-3/8 1-21/ S80 S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-/ U80 U /2 7-19/32 7-1/8 2-7/8 8-3/8 2 19/ Sprockets with H suffix have hardened teeth. E-106

107 All Steel No " Pitch 3.424" 1.119" 3.424" 1.119" Length Thru Bore Length Thru Bore TYPE C Alteration Charges See current discount sheet for alteration charges. Double - Type B & C Bore (inches) (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (App.) D160B B D160B B D160B B D160B B D160B B D160B B D160B B D160B B D160B B D160B B D160B.750 B D160B B D160B B D160B B D160C C D160C C D160C 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 Double - Type QD Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Diameter Diameter Type Bore L 1 L 2 C Y P G V X T W Only 35 D160M35 M C D160N45 N C D160N60 N C E-107

108 No " Pitch All Steel 1.301" 1.301" 1.301" Length Thru Bore Length Thru Bore TYPE A 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.) B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A B B A 180A C C A 180A C C A 180A C C A 180A C C A 180A C C A 180A C C A 180A 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. E-108

109 All Steel No " Pitch 1.389" 1.389" 1.389" Length Thru Length Thru TYPE A TYPE C Single - Type B & C Single - Type A Alteration Charges See current discount sheet for alteration charges. Single - Type QD 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.) B B A 200A B B A 200A B B A 200A B B A 200A B B A 200A B.260 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 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 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. Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Max. With Rim Teeth Number ing Type Bore L 1 L 2 C Y P G V X T Only F12 F C J J C J14 J C J J C J16 J C M17 M C M18 M C M19 M C M20 M C M21 M C M22 M C M M C M24 M C M25 M C M26 M C M28 M C M30 M C M32 M C M35 M C M40 M C N45 N C N54 N C N60 N C E-109

110 No " Pitch MST Sprockets TYPE 6 Single - MST Sprockets Diameters Dimensions Weight Lbs. (Approx.) No. Catalog Bush- Outside Pitch Type Max. Teeth Number ing Bore OL L C H P T(nom) With Rim Only R12 R /8 5-5/32 4-7/ /8 1-1/ S S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-1/ S14 S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-1/ S S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-1/ S16 S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-1/ S17 S /16 7-1/8 6-3/4 2-7/8 6-3/8 2-1/ U18 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U19 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U20 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U21 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U22 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U24 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U25 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U26 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U28 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U30 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U32 U /2 5-/32 5-1/4 1-5/8 8-3/8 2-17/ U35 U /2 7-19/32 7-1/8 2-7/8 8-3/8 2-7/ U40 U /2 7-19/32 7-1/8 2-7/8 8-3/8 2-7/ U45 U /2 7-19/32 7-1/8 2-7/8 8-3/8 2-7/ U54 U / /8 4-1/4 8-3/8 3-29/ U60 U / /8 4-1/4 8-3/8 3-29/ Sprockets with H suffix have hardened teeth. E-110

111 All Steel No " Pitch 4.161" 1.344" 4.161" 1.344" OD Length Thru Bore Length Thru Bore QD TYPE C QD TYPE C1 TYPE C Double - Type B & C Bore (inches (inches) Weight No. Catalog Outside Rec. Length Lbs. Teeth Number Diameter Type Stock Max. Thru (Approx.) 11 D200B B D200B B D200B B D200B B D200B.260 B D200B B D200B B D200B 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. Alteration Charges See current discount sheet for alteration charges. E-111

112 No " Pitch All Steel 1.738" 1.738" 1.738" Length Thru Bore Length Thru Bore TYPE A 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.) B B A 240A B B A 240A B B A 240A B.970 B A 240A B B A 240A B.910 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 B B A 240A C C A 240A C C A 240A C C A 240A C C A 240A C C A 240A C C A 240A E-112

113 Roller Chain Sprockets Metric Sprockets ISO STANDARDS Types A - B & C TYPE A TYPE C SIMPLEX SIMPLEX TRIPLEX DUPLEX TAPER BUSHED TAPER BUSHED INSTANT SIMPLEX DUPLEX SPLIT SPROCKET Made-to-Order TAPER BUSHED QD IDLER DOUBLE-SIMPLEX SIMPLEX BALL BEARING SIMPLEX HARDENED TEETH STAINLESS Double Simplex QD Sprockets Idler Sprockets Stainless Steel E-1

114 ISO 06B-1 METRIC 35 CHAIN DATA: BS 228/3 ISO 06B-1 PITCH: 9.53 mm (0.375") ROLLER DIAMETER: 6.35 mm (0.250") ROLLER WIDTH: 5.72 mm (0.225") TENSILE: 910 kilos (2000 lbs.) Metric Sprockets INCH (9.525 mm) 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 (kg) MM (kg) 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 A TYPE A Length Thru Bore 5.31 mm.209" 5.31 mm.209" 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-114

115 Metric Sprockets INCH (9.525 mm) PITCH SIMPLEX ISO O6B-1 METRIC 35 CHAIN DATA: BS 228/3 ISO 06B-1 PITCH: 9.53 mm (0.375") ROLLER DIAMETER: 6.35 mm (0.250") ROLLER WIDTH: 5.72 mm (0.225") TENSILE: 910 kilos (2000 lbs.) 5.31 mm.209" C Length Thru Bore Simplex- Taper Bushed Steel Pitch Bore Dimension Weight Approx. No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM (kg) (kg) BTB18H BTB19H BTB20H BTB21H BTB22H BTBH BTB24H BTB25H BTB26H * BTB28H BTB30H 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-1

116 ISO 06B-2 METRIC 35-2 Metric Sprockets CHAIN DATA: BS 228/3 ISO 06B-2 PITCH: 9.53 mm (0.375") ROLLER DIAMETER: 6.35 mm (0.250") ROLLER WIDTH: 5.72 mm (0.225") TENSILE: 1730 kilos (3800 lbs.) INCH (9.525 mm) PITCH DUPLEX WIDTH CHAIN.44 mm.608" 5.2 mm.205" Length Thru Bore Duplex - Type B Steel Pitch Bore Weight No. Diameter Catalog Stock Max. Thru Approx. Teeth MM Number MM MM MM MM (kg) 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-116

117 Metric Sprockets ISO 06B-2 METRIC INCH (9.525 mm) PITCH DUPLEX WIDTH CHAINS.44 mm.608" 5.2 mm.205" CHAIN DATA: BS 228/3 ISO 06B-2 PITCH: 9.53 mm (0.375") ROLLER DIAMETER: 6.35 mm (0.250") ROLLER WIDTH: 5.72 mm (0.225") TENSILE: 1730 kilos (3800 lbs.) C Duplex - Taper Bushed Steel Length Thru Bore Pitch Bore Dimension Weight Approx. No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM (kg) (kg) D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB D06BTB E-117

118 ISO 06B-3 METRIC 35-3 CHAIN DATA: BS 228/3 ISO 06B-3 PITCH: 9.53 mm (0.375") ROLLER DIAMETER: 6.35 mm (0.250") ROLLER WIDTH: 5.72 mm (0.225") TENSILE: 2540 kilos (5600 lbs.) Metric Sprockets INCH (9.525 mm) PITCH TRIPLEX 25.7 mm 1.011" 5.2 mm.205" Triplex - Type B Steel Length Thru Bore Pitch Bore Weight No. Diameter Catalog Stock Max. Thru Approx. Teeth MM Number MM MM MM MM (kg) 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-118

119 Metric Sprockets ISO 08B-1 METRIC INCH (12.70 mm) PITCH SIMPLEX CHAIN DATA: BS 228/7 ISO 08B-1 PITCH: mm (0.500") ROLLER DIAMETER: 8.51 mm (0.335") ROLLER WIDTH: 7.75 mm (0.305") TENSILE: 1820 kilos (4000 lbs.) TYPE A Length Thru Bore 7.37 mm.290" 7.37 mm.290" 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 (kg) MM (kg) 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. E-119

120 ISO 08B-1 METRIC 40 CHAIN DATA: BS 228/7 ISO 08B-1 PITCH: mm (0.500") ROLLER DIAMETER: 8.51 mm (0.335") ROLLER WIDTH: 7.75 mm (0.305") TENSILE: 1820 kilos (4000 lbs.) Metric Sprockets INCH (12.70 mm) PITCH SIMPLEX 7.37 mm.290" C L Simplex - Taper Bushed Steel Pitch Bore Dimension Weight Approx. No. Diameter Catalog Bushing Max. L C Rim Bushing Teeth MM Number Number MM MM MM (kg) (kg) BTB14H BTBH BTB16H BTB17H BTB18H BTB19H BTB20H BTB21H BTB22H BTBH BTB24H BTB25H BTB26H BTB27H BTB28H BTB29H BTB30H 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-120

121 Metric Sprockets INCH (12.70 mm) PITCH DUPLEX ISO 08B-2 METRIC 40-2 CHAIN DATA: BS 228/7 ISO 08B-2 PITCH: mm (0.500") ROLLER DIAMETER: 8.51 mm (0.335") ROLLER WIDTH: 7.75 mm (0.305") TENSILE: 3180 kilos (7000 lbs.) 21. mm.832" 7.24 mm.284" Duplex - Type B Steel Length Thru Bore Pitch Bore Weight No. Diameter Catalog Stock Max. Thru Approx. Teeth MM Number MM MM MM MM (kg) 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-121

122 ISO 08B-2 METRIC 40-2 CHAIN DATA: BS 228/7 ISO 08B-2 PITCH: mm (0.500") ROLLER DIAMETER: 8.51 mm (0.335") ROLLER WIDTH: 7.75 mm (0.305") TENSILE: 3180 kilos (7000 lbs.) Metric Sprockets INCH (12.70 mm) PITCH DUPLEX 21. mm.832" 21. mm.832" 21. mm.832" C C C L TYPE A L L 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 (kg) (kg) D08ATB D08ATB D08ATB D08BTB 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-122