Jaw In-Shear 6 Pin Reduces Downtime, Maintenance, And Inventory Costs

Transcription

1 Jaw In-Shear 6 Pin Reduces Downtime, Maintenance, And Inventory Costs Lovejoy's commitment to continual product improvement is demonstrated in the next generation of the Jaw In-Shear (JIS) coupling - the new Jaw In-Shear 6 Pin. This new design features a unique 6 pin locking system that allows for even easier locking of the element. Lovejoy s L-Type and C- Type Jaw hubs are utilized with this design. No tools are needed, because the element is radially removable, neither hub (for the driver or driven equipment) has to be moved to replace the element. Choose From 16 Jaw In-Shear 6 Pin Sizes and New Spacer Design The Jaw In-Shear 6 Pin coupling is available in bore sizes up to 180 mm. The JIS 6 Pin Spacer coupling is designed specifically as a drop-in replacement for a grid spacer coupling. The adapter hubs allow a grid spacer design to be replaced with a nonlubricated JIS 6 Pin Spacer coupling. The JIS 6 Pin Spacer coupling is available in sizes LS090 - CS350. These sizes cover B.S.E. (between shaft end measurement) of 100, 140, and 180 mm depending on coupling size. Jaw In-Shear 6 Pin Stainless Steel Option For highly corrosive, heavy washdown environments, the JIS 6 Pin design combined with Lovejoy s stainless steel jaw hubs creates a totally stainless steel coupling. The JIS 6 Pin Coupling Advantage: 2 degree angular misalignment capability mm mm parallel misalignment capability Torsional wind-up of 5 degrees at full load 50D shore Urethane material maximum temperature of 93 C (200 F) The retaining ring is made from #347 cast stainless steel Stainless steel hubs are available for sizes SS075-SS150 from stock All other stainless steel hub sizes are available as made to order Can be used with AL-type aluminum jaw coupling hubs for AL090/095, AL099, AL100 and AL110 The original JIS locking ring is interchangeable with the new JIS 6 Pin elastomer

2 JIS 6 Pin Coupling Standard Style Style 1 Style 2 JIS 6 Pin Coupling Dimensional Chart mm Size Style OD OAL G LTB HD SL RD W T LS M6 LS M8 LS M8 LS M8 LS M10 LS M10 LS M12 LS M12 LS M12 CS M12 CS M16 CS CSL CS CSL CS CSL CS CSL CS CSL CSL - Consult Lovejoy JIS 6 Pin Part Numbers And List Prices Size Spider Ring LS090/ LS099/ LS LS LS LS LS CS CS CS300* CS310* CS350* CS400* CS500* * 6 Piece Cushion Set

3 JIS 6 Pin Coupling Spacer Style Spacer Design JIS 6 Pin Spacer Coupling Dimensional Data Chart mm Spacer Grid Max Coupling Hub Bore Size OD OAL G BSE Size LTB HD Size LS LS LS LS LS110 LS LS LS

4 Total Service Factor = (K1) x (K2) x (K3) Application Service Factor (K1) The torque ratings and service factors are unique for Jaw In-Shear. Prime Mover: Electric Motor Driven Machine Examples Std. Torque High Torque (a) Uniform operation, with small masses to be accelerated. Hydraulic and centrifugal pumps, light generators, blowers, fans, ventilators, belt/screw conveyors (b) Uniform operation, with medium masses to be accelerated. Sheet metal bending machines, wood working machines, mills, textile machines, mixers (c) Medium masses to be accelerated & irregular operation. Rotating ovens, printing presses, generators, shredders, winders, spinning machines, pumps for viscous fluids (d) Medium masses to be accelerated, irregular operation & shocks. Concrete mixers, drop hammers, cable cars, paper mills, compression pumps, propeller pumps, rope winders, centrifuges (e) Large masses to be accelerated, irregular operation & heavy shocks. Excavators, hammer mills, piston pumps, presses, rotary boring machines, shears, forge presses, stamping presses (f) Very large masses to be accelerated, irregular operation & heavy shocks. Piston type compressors and pumps without speed variations, heavy roll sets, welding machines, brick presses, stone crushers Application Service Factor (K2) For Operation Period Uninterrupted Time Of Operation Factor Up to 8 hours per day 1.0 More than 8 hours, up to 16 hours/day 1.1 More than 16, up to 24 hours/day 1.15 Application Service Factor (K3) For Starts Per Hour Operation, Per Table (K1): a-c d-f Up to 10 starts/stops per hour More than 10, up to 40 per hour More than 40, up to 125 per hour More than 125, up to 250 per hour Jaw In-Shear Six Pin Coupling Ratings Coupling Max mm - Max Max. Bore Nom. Torque Max Torque Weight Speed Misalignment Size Inch mm in-lbs Nm in-lbs Nm kg RPM Parallel Axial LS , LS , LS , , LS , , LS , , , LS , , , LS , , , LS , , , LS , ,920 1, , CS ,300 1,503 26,600 3, , CS ,760 2,120 37,500 4, , CS ,000 3,728 66,000 7, , CS ,000 5, ,000 11, , CS ,333 9, ,666 18, , CS ,667 14, ,334 28, , CS ,333 20, ,666 41, ,

5 Fast Element Replacement Step 1 Remove element and align hubs. Step 2 Insert new element. Step 3 Slide locking ring over element. Step 4 Twist locking ring to secure. LOVEJOY U.S.A WISCONSIN AVENUE DOWNERS GROVE, IL U.S.A. PHONE: +1 (630) FAX: +1 (630) INFO@LOVEJOY-INC.COM LOVEJOY EUROPE IVOORSTRAAT RE ALKMAAR THE NETHERLANDS PHONE +31 (0) FAX +31 (0) LOVEJOY CANADA 171 SUPERIOR BLVD MISSISSAUGA,ONTARIO CANADA L5T 2L6 PHONE: +1 (905) FAX: +1 (905) Item Number: /03

6 Curved Jaw Type CJ CJ-1

7 Curved Jaw Type Curved Jaw Couplings From Lovejoy Introduction For over 100 years Lovejoy Inc. has set the standard for straight jaw couplings in the United States and around the world. Now, Lovejoy Inc. is proud to present the CJ and GS Series, a full line of curved jaw products for the world market. The CJ Series curved jaw coupling provides highly reliable service for light, medium, and heavy duty electrical motor and internal gas combustion engine applications. The GS Series provides a coupling solution for the motion control industry This product offering will continue Lovejoy's long history of being the world's premier coupling supplier. CJ The Curved Jaw Design The three-piece design incorporates a radial curvature to the jaw face and both radial and axial curvature (crowning) to the elastomer (spider). The curved jaw hubs are offered in sintered iron, steel, aluminum, cast and nodular iron materials. The CJ Series curved jaw coupling and the variety of urethane elements allows for angular, parallel, and axial misalignment. The simplicity of the three-piece design makes it easy to assemble. Unlike some metallic coupling designs, the CJ Series design requires no lubrication. When assembled, the CJ Series offers no metal to metal contact of parts. The elastomer in compression design offers the benefit of continuing to function even after the elastomeric element fails (fail-safe design). The torque range of the CJ Series product is 67 to in-lbs. Lovejoy offers the CJ Series in a range of product with finished stock metric bores and keyways for sizes 14 through 75/90. Sizes are also available with metric bores on a made-to-order basis. Elastomers (spider materials) Lovejoy offers four types of spiders for the CJ Series curved jaw coupling product line. Urethane spiders provide high abrasion resistance and elasticity, along with good damping characteristics. The spiders are offered in a variety of shore hardnesses, each providing a different level of torque capacity, damping, and chemical resistance. The 92 shore spider (white or yellow) is standard, offering excellent torque carrying capacity. The 80 shore spider (blue) offers the best damping characteristics. The 95/98 shore spider (red) offers the highest torque carrying capacity. The 64 shore spider (green) is offered for high humidity environments. The standard spiders also feature an open center to accommodate small between shaft end measurements. All standard spiders have a rated temperature capacity of 212 C. (See page 12 for GS spider temperature ratings.) The urethane material also resists oil, dirt, sand, grease, moisture, many solvents, as well as the atmospheric effects of ozone. Standard Spider Design Elastomer Recommendation Chart Spider Type Application types requiring: 80 shore A (Blue) Good damping properties 92 shore A (Yellow) General & hydraulic applications 95/98 shore A (Red) High torque requirements 64 shore (green) High humidity environments Elastomer Performance Data Temperature Range Misalignment (inches) Spider Type Color Material Normal Maximum Stock Sizes Angular Parallel Axial Typical Applications 80 Shore A Blue Polyurethane -40 to 212 F -40 to 248 F deg Good damping properties 92 Shore A Yellow Polyurethane -40 to 212 F -50 to 248 F deg General & hydraulic applications 95/98 Shore A Red Polyurethane -40 to 212 F -40 to 248 F deg High torque requirements Special Elastomer Data Temperature Range Misalignment (inches) Spider Type Color Material Normal Maximum Stock Sizes Angular Parallel Axial Typical Applications 64 Shore D Green Polyurethane -30 to 230 F -30 to 266 F deg Highly humidity environments CJ-2

8 Curved Jaw Type The CJ Series Selection Process* Step 1: Determine the nominal torque of your application: in-lbs = Tkn = HPx63025 rpm Step 5: Next find the columns listing Tkn and Tkmax values listed in Nm and compare them against the DTkmax figure for your application. Make sure that the spider/coupling size values are larger than the application values. Step 2: Step 3: Step 4: Calculate your Application Service Factor using the charts below. The total Service Factor (K) will be: K = K1 x K2 x K3 Calculate the design torque (DTkmax) of your application. Design Torque (DTkmax) = Nominal Torque x service factor. Using the Elastomer performance data charts on pages CJ-4 & CJ-5 select the urethane shore hardness which best corresponds to your relative damping needs in the application. Step 6: Step 7: Once the size is selected using the torque values, check the table on page CJ-6 to make sure the bore size needed will fit in the coupling. Double check the overall dimensions of the coupling to ensure that it will fit in the space allowed for the coupling in the application. *This selection process is based on application factors only. A selection process is also available using DIN 740 part 2 standard. Consult with Lovejoy Engineering for details. CJ Application Service Factor (K1) Service Application Service Factor Factor (K1) Uniform operation with small masses to be accelerated. Hydraulic and centrifugal pumps, light generators, blowers, 1.0 fans, ventilators, belt/screw conveyors. Uniform operation with medium masses to be accelerated. Sheet metal bending machines, wood working machines, 1,2 mills, textile machines, mixers. Irregular operation, with medium masses to be accelerated. Rotating ovens, printing presses, generators, shredders, 1,3 winders, spinning machines, pumps for viscous fluids. Irregular operation and shocks, with medium masses to be accelerated Concrete mixers, drop hammers, cable cars, 1,4 paper mills, compression pumps, propeller pumps, rope winders, centrifuges. Irregular operation and very heavy shocks, with large masses to be accelerated. Excavators, hammer mills, 1,6 piston pumps, presses, rotary boring machines, shears, forge presses, stone crushers. Irregular operation and very heavy shocks, with very large masses to be accelerated. Piston type compressors and 1,8 pumps without speed variations, heavy roll sets, welding machines, brick presses, stone crushers. Application Service Factor for Starts per Hour (K2) Starts per hour Service Factor (K2) 1,0 1,2 1,4 1,6 Application Service Factor for Ambient Temperature (K3) Ambient Temperature -30 to +30 C +40 C +60 C +80 C Service Factor (K3) 1,0 1,2 1,4 1,6 Definition of Terms Tkn Tkmax P[kW] rpm[1/min] Nm DTkmax Tkw Pkw BX Hub Rated coupling torque Maximum torque of the coupling Power in kilowatts Revolutions per minute Newton meters Maximum torque of the application Varying load of an application in kilowatts Allowable power loss Extended length hub CJ-3

9 Curved Jaw Type Elastomer Torque Ratings CJ Wind-Up Torque [in-lbs] Torque [Nm] Rated Maximum Nominal Maximum Size Speed Torque Torque nominal maximum nominal maximum Urethane Spider - 92 Shore A (Yellow) , / / / , / ,680 3, / ,345 4, / ,740 5, / ,625 7, / ,2 5 5,530 11, , / ,320 22,650 1,279 2, / ,240 42,480 2,400 4, / ,200 58,400 3,299 6, / ,480 84,960 4,799 9, / , ,700 6,649 13, , ,340 8,549 17, , ,560 12,798 25, , ,100 18,647 37, Urethane Spider - 98 Shore A (Red) , / / , / ,415 2, / ,875 5, / ,980 7, / ,645 9, , / ,060 12, , / ,2 5 8,320 16, , / ,990 33,980 1,920 3, / ,860 63,720 3,600 7, / ,805 87,610 4,949 9, / , ,440 7,199 14, / , ,000 9,999 19, , ,560 12,798 25, , ,840 19,198 38, , ,600 27,996 55, Urethane Spider - 80 Shore A Sizes (Blue) , / / / / / / / / , / / ,175 2, / ,610 3, / ,950 3, / ,440 4, *Lovejoy recommends using 30 m/s as maximum speed. For operating speed above maximum use only steel or nodular iron hubs, dynamic balancing required. CJ-4

10 Curved Jaw Type Elastomer Torque Ratings (Continued) Wind-Up Torque [in-lbs] Torque [Nm] Rated Maximum Nominal Maximum Size Speed Torque Torque nominal maximum nominal maximum Urethane Spider 64 Shore D (Green) ,5 7, / / , / ,770 3, / ,585 7, / ,955 9, , / ,795 11, , / ,300 14, , / ,5 3,6 10,395 20,790 1,174 2, / ,240 42,480 2,400 4, / ,825 79,650 4,499 8, / , ,470 6,184 12, / , ,300 8,999 17, / , ,260 12,499 24, , ,200 15,998 31, , ,800 23,997 47, , ,500 34,996 69, *Lovejoy recommends using 30 m/s as maximum speed. For operating speed above maximum use only steel or nodular iron hubs, dynamic balancing required. CJ CJ-5

11 Curved Jaw Type Coupling Dimensions And Materials CJ Configuration One 2 A Hubs Curved Jaw Coupling Configuration Two 2 B Hubs Hub Dimensions (inches) Cast AL Cast Iron Nodular Iron PM/Steel Min. Max. Min. Max. Min. Max. Min. Max. LTB1 Size Hub Style Bore Bore HD Bore Bore* HD Bore Bore* HD Bore Bore* HD & LTB2 G CL W OAL T;U OD H 14 B Style S BX Style S S A Style S S /24 B Style S BX Style S S A Style S S /32 B Style S BX Style S S A Style S S /38 B Style BX Style S S A Style S S /45 B Style BX Style S S A Style S S S /55 B Style S BX Style S S A Style S S S /60 B Style S BX Style S A Style S S /70 B Style S BX Style S A Style S S /75 B Style S BX Style S A Style S S /90 B Style S BX Style S A Style S S /100 B Style S BX Style S B Style B Style B Style B Style B Style B Style *Maximum bore may be achieved through the use of a shallow keyway CL = Distance between spider and hub face. Max Bore refers to maximum straight bore with keyway allowed in hub. S= Solid hub with no bore. CJ-6 OD is equal to HD for B style aluminum sizes: 19, 24, and 28. W = Spider Thickness. Outside diameter of spider equal to OD. H = Inside diameter of spider.

12 Curved Jaw Type Hub Designs (Descriptions) Keyway With Set Screw (KW) Standard Lovejoy method of securing a hub to a shaft. Clamping style recommended for backlash free torque transmission. Without Keyway, With Set Screw Set screw used to secure hub to shaft. Spline Hub With Set Screw (W/SS) Hub bored to accept standard S.A.E. and metric spline, secured with set screw to shaft. Spline Hub With Clamp (SC) Hub bored to accept standard S.A.E. and metric spline, secured utilizing a clamping feature. CJ Spline Hub With L-Loc (L-LOC) Hub bored to accept standard SAE and metric spline using the more efficient L-Loc feature to secure hub on shaft. Clamping Hub With Single Slot Without Keyway (C) Zero backlash clamping style for torque transmission. Torque capacity of hub depends on bore sizes. Clamping Hub With Single Slot With Keyway (CWK) Zero backlash clamping style with keyway for torque transmission. Hub With Frictional Locking Device (LD) This hub utilizes a shaft locking device to allow for shaft engagement. CJ-7

13 Curved Jaw Type CJ CJ Series Powdered Metal (PM) and Cast Iron (CI) Hubs Metric Bore Sizes When referencing a Lovejoy Item (UPC) number, include as a prefix to the number shown in the table Powdered Metal Cast Iron Metric Bore Keyway 14 19/24 24/32 28/38 38/45 42/55 48/60 55/70 65/75 75/90 Size Size B Hub B Hub B Hub B Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub RSB* mm 2 x 1 9mm 3 x mm 3 x mm 4 x mm 4 x mm 5 x mm 5 x mm 5 x mm 6 x mm 6 x mm 6 x mm 6 x mm 8 x mm 8 x mm 8 x mm 8 x mm 8 x mm 10 x mm 10 x mm 10 x mm 10 x mm 12 x mm 12 x mm 14 x mm 14 x mm 14 x mm 16 x mm 18 x mm 18 x mm 18 x mm 20 x mm 20 x mm RSB n/kw mm 22 x mm 22 x mm 25 x mm 28 x *RSB maybe supplied as a solid hub or rough stock bore. CJ-8

14 Curved Jaw Type CJ Series Aluminum and Steel BX Style Hubs CJ Series Aluminum Hubs Metric Bore Sizes When referencing a Lovejoy Item (UPC) number, include as a prefix to the number shown in the table Metric Bore Keyway 14 19/24 24/32 28/38 38/45 42/55 48/60 Size Size B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub A Hub B Hub RSB* n/kw mm 2 x mm 2 x mm 3 x mm 3 x mm 4 x mm 4 x mm 5 x mm 5 x mm 5 x mm 6 x mm 6 x mm 6 x mm 8 x mm 8 x mm 8 x mm 8 x mm 10 x mm 10 x mm 10 x mm 12 x mm 12 x mm 14 x mm 14 x mm 14 x mm 16 x mm 18 x mm 18 x mm 20 x 4.9 *RSB maybe supplied as a solid hub or rough stock bore. CJ CJ Series Steel BX Style Hub Metric Bore Sizes When referencing a Lovejoy Item (UPC) number, include as a prefix to the number shown in the table Metric Bore Keyway Size Size 14 19/24 24/32 28/38 38/45 42/55 48/60 55/70 Solid n/kw mm 5 x mm 6 x mm 8 x mm 8 x mm 8 x mm 12 x mm 14 x mm 14 x mm 16 x mm 18 x mm 20 x CJ-9

15 Curved Jaw Type CJ Coupling Installation and Misalignment Capabilities Coupling Size Dimensions G CL H S DIST MAX Kr OAL Ka Kw DIST MIN DIST MAX - DIST MIN Axial Displacement Radial Displacement Angular Displacement Displacement For Displacement/Misalignment (inches) Max. Axail Displ. (Ka) Max. Radial Displ. (Kr) Kw Max angular displ n=1500 [1/min] in deg (Kw) 1,2 1,2 0, ,0 1,0 1,1 1,1 1,2 1,2 1,2 1,2 1,3 1,3 1,2 1,2 1,2 Angular Displacement Set Screw Information Set Screw Size (SS) / / / / /8-16 3/8-16 3/8-16 3/8-16 1/2-13 5/8-11 5/8-11 Set Screw Location (t) The values regarding displacement are provided assuming normal operating conditions (i.e. temperature, torque with nominal rating of the coupling, speed/rpm rating of the coupling, and misalignment). Careful installation (i.e. alignment) and periodic inspection should be provided to provide the optimum life of the coupling. Special consideration should be given as to the position of the shafts and the amount of axial movement the coupling will be exposed to. The more accurate the alignment of the coupling, will result in greater life of the elastomer. A coupling guard and rotating equipment safety procedures should always be followed. Please consult the Lovejoy web site at for assembly instructions of the curved jaw coupling. CJ-10

16 Curved Jaw Type Spacer Type and Center Drop Out Designs Hubs available in aluminum, sintered iron, cast iron, and steel. Spacer style features an aluminum spacer piece. Drop-out style features two inserts for increased damping and parallel misalignment capability. Center drop-out design provides easy element replacement. Designed to accommodate a larger shaft separation. CJ Extended Spacer Styles Extended Spacer Style for extension between shaft end measurements. Increased parallel misalignment capacity. Easy replacement. Standard Drop-out Styles Standard Drop-out design features easily removable components. Available in cast and nodular iron sizes Shaft-to-Flange Flange-to-Flange Styles Flange-to-Flange design available for applications requiring space saving, compact connections. Shaft-to-Flange design is also available for special application situations requiring an alternative connection. CJ-11

17 Curved Jaw Type Technical Description For The GS Series CJ The GS Series curved jaw coupling offers zero backlash capability in a 3-piece design. The coupling is provided assembled under prestress. The GS Series can be used in a variety of different applications requiring precision and accuracy. The GS Series spider features a straight center of the spider tooth, providing higher stiffness due to coupling prestress. The crowning of the ends of the spider legs allows for misalignment, while the curved jaws and solid spider center provide high-speed capability. The jaws of the hubs and the spider legs are chamfered to provide easy assembly. The GS Series coupling design also allows the blind assembly in tight spaces. Raised spider dots on the legs of the spider ensure proper spacing of hubs and spider. Proper installation of the coupling can provide isolation of electrical currents. Check the CL dimension listed on page 19 to ensure the proper spacing between spiders and hubs. The GS Series coupling has spiders available in four different shore hardnesses. Each spider offers benefits for different vibratory, environmental, and torque transmission requirements. Elastomer Performance Data Temperature Range Spider Type Color Material Normal Maximum Sizes Available Typical Applications 80 Shore A GS Blue Urethane -50 to 176 F -80 to 248 F Electric measuring systems 92 Shore A GS Yellow Urethane -40 to 194 F -50 to 248 F Electric measuring systems and control systems 95/98 Shore A GS Red Urethane -30 to 194 F -40 to 248 F Positioning drives, main spindle drives, high load applications 64 Shore D GS Green Urethane -20 to 230 F -30 to 248 F High load applications torsiionally stiff spider material CJ-12

18 Curved Jaw Type Coupling Selection For The GS Series Typical Applications Measurement And Control Systems The torsional stiffness of the GS Series coupling provides zero backlash needed for the accuracy for measurement and control systems. The low torques of these applications gives the GS Series the ability to provide zero backlash due to the elastomer pre-stress. Servo And Positioning Drives The GS Series provides a zero backlash, flexible connection for servo and positioning drives. An added benefit of the GS Series is its damping capabilities. For applications that have vibrations at critical speeds, the GS Series coupling can provide a zero backlash solution for vibration problems. CJ Main Spindle Drives The GS Series coupling is used in main spindle drives for machine tools. Torque spikes and cyclical loading are handled by the GS Series by damping or by shifting the vibratory frequency range to a non-critical speed range. GS Series Service Factors Temperature Factor -30 to +30C +40 C +60 C +80 C K3 1 1,2 1,4 1,8 Calculation Formula Rated nominal torque Tkn [in-lbs] = HP x RPM Torsional Stiffness Factor Main Positioning Shaft Spindle Drive Encoders, Drive Of Angle Machine Encoders K Shock Load Factors K5 Light Shock Loads 1,0 Medium Shock Loads 1,4 Heavy Shock Loads 1,8 Rotational inertia coefficient (driver) = Rotational inertia coefficient (driven) = Moment of inertia (driver) Moment of inertia (driver) + Moment of inertia (driven) Moment of inertia (driven) Moment of inertia (driver) + Moment of inertia (driven) Check the nominal torque for the application against the rating for the coupling: Tkn > Rated torque of machine x K3 x K4 Peak Torque Shock load (driver side) = Peak torque (driver) x rotational inertia coefficient (driver) x K5 Shock load (driven side) = Peak torque (driven) x rotational inertia coefficient (driven) x K5 Check the peak torque for the application against the rating for the coupling (see page 15), checking both driver and driven sides: Tkmax > Peak Torque (driver or driven side) x K3 x K4 CJ-13

19 Curved Jaw Type GS Series Technical Description CJ Static Dynamic Maximum Speed for Clamping Styles Torsional Torsional Radial Complete Coupling, maximum (RPM) Torque (in-lbs) Stiffness Stiffness Stiffness bore w/o kw Polar Moment Coupling Spider Clamping Set Screw Weight of Inertia J Size Durometer Hub Hub Locking Device Hub Tkn Tkmax [lb in/rad] [lb in/rad] [b/in] (lb) (lb-in 2 ) (x10-6 ) 80 Sh A Sh A Sh A Sh D Sh A /24 92 Sh A Sh A Sh D Sh A /32 98 Sh A Sh D /38 92 Sh A Sh A Sh D Sh A /45 98 Sh A Sh D Sh A /55 98 Sh A Sh D Sh A /60 98 Sh A Sh D Sh A /70 98 Sh A Sh D /75 95 Sh A /90 95 Sh A CJ-14

20 Curved Jaw Type Lovejoy GS Series Curved Jaw Couplings No backlash connections for use in machine tool applications. Finished metric bores to H7 fit. Clamp style and set screw style available. Clamping design also available for use with shaft locking device. CJ Double Split Clamp Style Hub Single Slip Clamp Style Hub Dimensional Data [inches] Shaft Locking Device Hub Set Screw Style Hub Set Screw Style Clamping Bolt Style Set Set Screw Bolt Screw Location Location Torque Size Material Max Bore OD OAL LTB G CL TH Size (SS) (SL) Bolt Size (t) (in-lbs) 14 Aluminum M /24 Aluminum M /32 Aluminum M /38 Aluminum / M /45 Aluminum / M /55 Steel / M /60 Steel / M /70 Steel / M /75 Steel / M CJ-15

21 Curved Jaw Type GS Series Hub Design (Descriptions) The GS Series coupling features different hub designs for different application situations. Each type offers specific benefits for different types of applications. The clamping styles offer the benefit of minimal to zero backlash. CJ Keyway With Set Screw (KW) Standard Lovejoy method of securing a hub to a shaft. Clamping style recommended for backlash free torque transmission. Without Keyway, With Set Screw Set screw used to secure hub to shaft. This hub design should be used in applications with non-reversing and low torque characteristics. Clamping Hub With Single Slot Without Keyway (C) Zero backlash, clamping style for torque transmission. Torque capacity of hub depends on bore size. Available standard for sizes Clamping Hub With Single Slot With Keyway (CWK) Zero backlash, clamping style with keyway for torque transmission. Usable in applications featuring reversing loads. Available standard for sizes Clamping Hub With Double Slot Without Keyway (DSC) Transmits torque utilizing a double split clamp to attach hub to shaft. Zero or minimum backlash. Torque capacity of coupling determined by bore size. Available standard for sizes Clamping Hub With Double Slot With Keyway (DSCK) Transmits torque utilizing a double split clamp to attach hub to shaft. Zero or minimum backlash. Available standard for sizes Hub With Frictional Locking (LD) This hub utilizes a shaft locking device to allow for shaft engagement. This design features bolts tightened on the jaw side of the hub. CJ-16

22 Curved Jaw Type GS Series Misalignment Information The GS Series coupling handles the following types of misalignment: axial, angular, and radial. The coupling retains its zero backlash properties due to its spider design. GS Series Misalignment Table Kr Axial Misalignment Axial misalignment can be caused by different shaft tolerances or by thermal expansion of shafts. The GS Series coupling handles axial misalignment while keeping reactionary forces low. Radial Misalignment Radial misalignment can be defined as a measure of the offset distance between the centerlines of the driving and driven shafts. This type of misalignment, due to the forces involved, causes the highest stress. Angular Misalignment Angular misalignment can be defined as a measure of the angle between the centerlines of the driving and driven shafts, where those centerlines would intersect approximately halfway between shaft ends. The GS Series coupling can handle a specific amount of angular misalignment for each given size (refer to chart on right). Misalignment Spider Size shore Axial Radial Angular , , , , , , , , , , , , , , , , , , , , , , , , , , ,9 CJ CJ-17

23 Notes BLANK PAGE CJ-18

24 Jaw In-Shear Type JIS JIS-1

25 Jaw In-Shear Type Overview JIS JIS 6 Pin Saves Great Amounts Of Time, Maintenance, And Inventory Costs Lovejoy s commitment to continual product improvement is demonstrated in the next generation of the Jaw In-Shear (JIS) coupling the new Jaw In-Shear 6 Pin. This new design features a unique 6 pin locking system that allows for even easier locking of the element. Lovejoy s L-Type and C- Type Jaw hubs are utilized with this design. No tools are needed, because the element is radially removable, neither hub (for the driver or driven equipment) has to be moved to replace the element. Choose From 16 JIS 6 Pin Sizes and New Spacer Design The Jaw In-Shear 6 Pin coupling is available in bore sizes up to 9 inches. The JIS 6 Pin Spacer coupling is designed specifically as a drop-in replacement for a grid spacer coupling. The adapter hubs allow a grid spacer design to be replaced with a non-lubricated JIS 6 Pin Spacer coupling. The JIS 6 Pin Spacer coupling is available in sizes LS090-CS350. These sizes cover B.S.E. (between shaft end measurement) of 3.5, 5, 7, and 9 inches, depending on coupling size. Jaw In-Shear 6 Pin Assembled Shown With L-095 Straight Jaw Hubs JIS 6 Pin Stainless Steel Option For highly corrosive, heavy washdown environments, the JIS 6 Pin design combined with Lovejoy s stainless steel jaw hubs creates a totally stainless steel coupling. Benefits 2 degree angular misalignment capability.030"-.094" parallel misalignment capability Torsional wind-up of 5 degrees at full load 50D shore Urethane material maximum temperature of 200 F (93 C) The retaining ring is made from #347 cast stainless steel Stainless steel hubs are available for sizes SS075-SS150 from stock. All other stainless steel hub sizes are available as made to order Can be used with AL-type aluminum jaw coupling hubs for AL090/095, AL099,100 and AL110 The Original JIS locking ring is interchangeable with the new JIS 6 Pin elastomer Jaw In-Shear 6 Pin Element 50D Shore Urethane Material jaw In-Shear 6 Pin Ring Stainless Steel JIS-2

26 Jaw In-Shear Type Selection Process Jaw In-Shear Type Coupling Selection Process The selection process for determining the proper Jaw In-Shear coupling size requires using the charts shown in this section. There are four components to be selected, two hubs, one elastomer spider, and one ring. Information necessary before a coupling can be selected: n HP (or KW) and RPM or Torque of Driver n Shaft sizes of Driver and Driven equipment and corresponding keyways n Application description, including operation details n Environmental conditions (temperature, space limitations, or corrosive/chemicals) Steps in Selecting A Jaw In-Shear Coupling Step 1: Determine the Nominal/Torque (Tkn) of your application: in-lbs = Tkn = (HP x 63025) RPM Nm = Tkn = (KW x 9550) RPM List of Charts provided for Selection: Service Factor K 1 Service Factor K 2 Service Factor K 3 Jaw In-Shear Coupling Ratings (page JIS-4) Step 4: Use the Torque Ratings chart on the next page. Scan down this chart to the first entry where both the Tkn and Tkmax torque values for the coupling size are greater than your application. Once this coupling size is determined, ensure that your application does not exceed the Maximum RPM or Maximum Bore Size for that hub. JIS Step 2: Calculate your Application Service Factor using charts on this page. The total Service Factor (K) will be: K = K 1 x K 2 x K 3 Step 3: Calculate the Design Torque (Tkmax) of your application. Design Torque = Nominal Torque x Service Factor: Tkmax = Tkn x K Step 5: Using the Product Number Selection charts for hubs in the Jaw In- Shear Coupling Section find the appropriate bore and keyway sizes required along with the Spider and ring UPC number on page JIS-4 for ordering. Application Service Factor (K1) Prime Mover electric motor Driven machine examples std. torque high torque (a) Uniform operation, with small masses to be accelerated. Hydraulic and centrifugal pumps, light generators, blowers, fans, ventilators, belt/screw conveyors (b) Uniform operation, with medium masses to be accelerated. Sheet metal bending machines, wood working machines, mills, textile machines, mixers (c) Medium masses to be accelerated & irregular operation. Rotating ovens, printing presses, generators, shredders, winders, spinning machines, pumps for viscous fluids (d) Medium masses to be accelerated, irregular operation & shocks. Concrete mixers, drop hammers, cable cars, paper mills, compression pumps, propeller pumps, rope winders, centrifuges (e) Large masses to be accelerated, irregular operation & heavy shocks. Excavators, hammer mills, piston pumps, presses, rotary boring machines, shears, forge presses, stamping presses (f) Very large masses to be accelerated, irregular operation & heavy shocks. Piston type compressors and pumps without speed variations, heavy roll sets, welding machines, brick presses, stone crushers Service Factor (K2) for Operation Period Uninterrupted time of operation Factor Up to 8 hours per day 1.0 More than 8 hours, up to 16 hours/day 1.1 More than 16, up to 24 hours/day 1.15 Service Factor (K3) for Starts per Hour operation, per table K1: a-c d-f Up to 10 starts/stops per hour More than 10, up to 40 per hour More than 40, up to 125 per hour More than 125, up to 250 per hour JIS-3

27 Jaw In-Shear Type Performance Data JIS Step 1 Remove element and align hubs. Step 2 Insert new element. Step 3 Slide locking ring over element. Step 4 Twist locking ring to secure. Jaw In-Shear (JIS) Six Pin Coupling Ratings Coupling Max. Max. Bore Nom. Torque Max. Torque Weight speed Size Inch mm in-lbs Nm in-lbs Nm lbs. RPM LS ,200 LS ,200 LS , ,700 LS , ,700 LS , , ,900 LS , , ,200 LS , , ,300 LS , , ,900 LS , ,920 1, ,100 CS ,300 1,503 26,600 3, ,600 CS ,760 2,120 37,500 4, ,300 CS ,000 3,728 66,000 7, ,300 CS ,000 5, ,000 11, ,100 CS ,333 9, ,666 18, ,900 CS , ,334 28, ,800 CS ,333 20, ,666 41, ,500 JIS-4

28 Jaw In-Shear Type Dimensional Data Jaw In-Shear Six Pin Coupling Dimensional Data Inch Size Style O.D. O.A.L. G LTB HD SL RD W T LS /4-20 LS /16-18 LS /16-18 LS /16-18 LS /8-16 LS /8-16 LS /2-13 LS /2-13 LS /2-13 CS /2-13 CS /8-11 CS CSL CS CSL CS CSL CS CSL CS CSL JIS Style 1 Style 2 JIS-5

29 Jaw In-Shear Type LTB OAL G JIS OD HD BSE JIS 6 Pin Spacer Coupling Dimensional Data Chart Inch Spacer Grid Max Coupling Hub Bore Size O.D. O.A.L. G B.S.E. Size LTB H.D. Size G LS G G G G LS G G G G LS G G G G LS G G G G LS G G G G LS G G LS G G LS G G LS G CS G CS G CS G CS G CS G JIS-6

30 Jaw In-Shear 6 Pin Reduces Downtime, Maintenance, And Inventory Costs Lovejoy's commitment to continual product improvement is demonstrated in the next generation of the Jaw In-Shear (JIS) coupling - the new Jaw In-Shear 6 Pin. This new design features a unique 6 pin locking system that allows for even easier locking of the element. Lovejoy s L-Type and C- Type Jaw hubs are utilized with this design. No tools are needed, because the element is radially removable, neither hub (for the driver or driven equipment) has to be moved to replace the element. Choose From 16 Jaw In-Shear 6 Pin Sizes and New Spacer Design The Jaw In-Shear 6 Pin coupling is available in bore sizes up to 180 mm. The JIS 6 Pin Spacer coupling is designed specifically as a drop-in replacement for a grid spacer coupling. The adapter hubs allow a grid spacer design to be replaced with a nonlubricated JIS 6 Pin Spacer coupling. The JIS 6 Pin Spacer coupling is available in sizes LS090 - CS350. These sizes cover B.S.E. (between shaft end measurement) of 100, 140, and 180 mm depending on coupling size. Jaw In-Shear 6 Pin Stainless Steel Option For highly corrosive, heavy washdown environments, the JIS 6 Pin design combined with Lovejoy s stainless steel jaw hubs creates a totally stainless steel coupling. The JIS 6 Pin Coupling Advantage: 2 degree angular misalignment capability mm mm parallel misalignment capability Torsional wind-up of 5 degrees at full load 50D shore Urethane material maximum temperature of 93 C (200 F) The retaining ring is made from #347 cast stainless steel Stainless steel hubs are available for sizes SS075-SS150 from stock All other stainless steel hub sizes are available as made to order Can be used with AL-type aluminum jaw coupling hubs for AL090/095, AL099, AL100 and AL110 The original JIS locking ring is interchangeable with the new JIS 6 Pin elastomer

31 JIS 6 Pin Coupling Standard Style Style 1 Style 2 JIS 6 Pin Coupling Dimensional Chart mm Size Style OD OAL G LTB HD SL RD W T LS M6 LS M8 LS M8 LS M8 LS M10 LS M10 LS M12 LS M12 LS M12 CS M12 CS M16 CS CSL CS CSL CS CSL CS CSL CS CSL CSL - Consult Lovejoy JIS 6 Pin Part Numbers And List Prices Size Spider Ring LS090/ LS099/ LS LS LS LS LS CS CS CS300* CS310* CS350* CS400* CS500* * 6 Piece Cushion Set

32 JIS 6 Pin Coupling Spacer Style Spacer Design JIS 6 Pin Spacer Coupling Dimensional Data Chart mm Spacer Grid Max Coupling Hub Bore Size OD OAL G BSE Size LTB HD Size LS LS LS LS LS110 LS LS LS

33 Total Service Factor = (K1) x (K2) x (K3) Application Service Factor (K1) The torque ratings and service factors are unique for Jaw In-Shear. Prime Mover: Electric Motor Driven Machine Examples Std. Torque High Torque (a) Uniform operation, with small masses to be accelerated. Hydraulic and centrifugal pumps, light generators, blowers, fans, ventilators, belt/screw conveyors (b) Uniform operation, with medium masses to be accelerated. Sheet metal bending machines, wood working machines, mills, textile machines, mixers (c) Medium masses to be accelerated & irregular operation. Rotating ovens, printing presses, generators, shredders, winders, spinning machines, pumps for viscous fluids (d) Medium masses to be accelerated, irregular operation & shocks. Concrete mixers, drop hammers, cable cars, paper mills, compression pumps, propeller pumps, rope winders, centrifuges (e) Large masses to be accelerated, irregular operation & heavy shocks. Excavators, hammer mills, piston pumps, presses, rotary boring machines, shears, forge presses, stamping presses (f) Very large masses to be accelerated, irregular operation & heavy shocks. Piston type compressors and pumps without speed variations, heavy roll sets, welding machines, brick presses, stone crushers Application Service Factor (K2) For Operation Period Uninterrupted Time Of Operation Factor Up to 8 hours per day 1.0 More than 8 hours, up to 16 hours/day 1.1 More than 16, up to 24 hours/day 1.15 Application Service Factor (K3) For Starts Per Hour Operation, Per Table (K1): a-c d-f Up to 10 starts/stops per hour More than 10, up to 40 per hour More than 40, up to 125 per hour More than 125, up to 250 per hour Jaw In-Shear Six Pin Coupling Ratings Coupling Max mm - Max Max. Bore Nom. Torque Max Torque Weight Speed Misalignment Size Inch mm in-lbs Nm in-lbs Nm kg RPM Parallel Axial LS , LS , LS , , LS , , LS , , , LS , , , LS , , , LS , , , LS , ,920 1, , CS ,300 1,503 26,600 3, , CS ,760 2,120 37,500 4, , CS ,000 3,728 66,000 7, , CS ,000 5, ,000 11, , CS ,333 9, ,666 18, , CS ,667 14, ,334 28, , CS ,333 20, ,666 41, ,

34 Fast Element Replacement Step 1 Remove element and align hubs. Step 2 Insert new element. Step 3 Slide locking ring over element. Step 4 Twist locking ring to secure. LOVEJOY U.S.A WISCONSIN AVENUE DOWNERS GROVE, IL U.S.A. PHONE: +1 (630) FAX: +1 (630) INFO@LOVEJOY-INC.COM LOVEJOY EUROPE IVOORSTRAAT RE ALKMAAR THE NETHERLANDS PHONE +31 (0) FAX +31 (0) LOVEJOY CANADA 171 SUPERIOR BLVD MISSISSAUGA,ONTARIO CANADA L5T 2L6 PHONE: +1 (905) FAX: +1 (905) Item Number: /03

35 Amazingly Affordable. Unsurpassed Quality. Lovejoy s Jaw Coupling Now Standard In Stainless Steel. In applications that require the use of stainless steel components, Lovejoy s SS-type jaw coupling offers a new level of affordability and availability. Hubs with finished bores are passivated against rust Immediate delivery available in 5 sizes either rough bore or finished bore and keyway combinations Select from bore sizes 1 /4"(SS075) to 1-7 /8"(SS150) Interchangeable with all hub sizes standard for the L-line and AL-line products Hubs can be used with inserts in 4 different materials: Buna-N (Sox), Urethane, Hytrel and Bronze Use with Lovejoy s Jaw-in-Shear to create a completely stainless steel in-shear coupling Where The World Turns For Couplings. For more information on the Lovejoy Stainless Steel Jaw coupling contact us at (630) or visit our web site:

36 Stainless Steel Coupling Dimensional Data Inch Chart 1 Size Max Bore Outside in mm Diameter OD Overall Length OAL Gap G Length Thru Bore LTB Hub Diameter Set Screw Location SL Set Screw Size T SS /4-20 SS /16-18 SS /16-18 SS /8-16 SS /8-16 SS Type Stainless Steel Coupling Ratings Chart 2 Size Material Torque Rating HP/100 Maximum Bore Max in-lbs Nm in mm RPM SS075 Spider (Sox) ,000 Urethane ,600 Hytrel ,600 Bronze SS095 Spider (Sox) ,000 Urethane ,600 Urethane(JIS) ,200 Hytrel ,600 Bronze List Prices Per Hub Size Rough Stock Bore Stock Finished Bore* Non-Stock Finished Bore (1) SS075 $26.00 $50.00 $88.00 SS095 $35.00 $62.00 $97.25 SS100 $50.00 $73.00 $ SS110 $91.00 $ $ SS150 $ $ $ * see chart 3 (1) inch bores per AGMA 9002 A86 metric bores per DIN 7154, H7 DIN 6885, JS9 SS100 Spider (Sox) ,000 Urethane ,600 Urethane(JIS) ,700 Hytrel ,600 Bronze SS110 Spider (Sox) ,000 Urethane ,600 Urethane(JIS) ,900 Hytrel ,000 Bronze SS150 Spider (Sox) ,000 Urethane ,600 Urethane(JIS) ,200 Hytrel ,000 Bronze Stainless Steel Hub UPC Part Numbers Chart 3 Prefix is Size RSB* 1/4 1/2 5/8 3/4 7/ /8 1-3/8 SS SS SS Size RSB* 1 1-1/8 1-3/8 1-1/2 1-5/8 1-3/4 1-7/8 SS SS *Rough bore must be passivated after reboring to prevent rust. For more information on the Lovejoy Stainless Steel Jaw coupling contact us at (630) or visit our web site Item # /00

37 Jaw Type JW JW-1

38 Jaw Type Overview JW Jaw Type Couplings USA Standard Elastomer-in-Compression The Jaw Type couplings from Lovejoy are offered in the industry s largest variety of stock bore/keyway combinations. These couplings require no lubrication and provide highly reliable service for light, medium, and heavy duty electrical motor and internal combustion power transmission applications. Other features and benefits include: Fail-safe will still perform if elastomer fails. No metal to metal contact. Resistant to oil, dirt, sand, moisture and grease. More than 850,000 combinations of bore sizes. Most types available from stock in 24 hours. L COUPLING Applications include power transmission to industrial equipment such as pumps, gear boxes, compressors, blowers, mixers, and conveyors. Lovejoy s Jaw Type couplings are available in 24 sizes from a minimum torque rating of 3.5 in lbs to a maximum torque rating of 170,004 in lbs and a bore range of.125 inches to 7 inches. Lovejoy s standard bore program covers AGMA, SAE, and DIN bore/keyway and spline bore combinations. LC COUPLING The Lovejoy Jaw Type coupling is available in a variety of metal hub and insert materials. Hubs are offered in sintered metal, aluminum, bronze, steel, stainless steel, and ductile iron. L Type This coupling offers standard shaft-to-shaft connection for general industrial duty applications. Standard L type coupling hub materials are either sintered iron (L035 - L150) or cast iron (L190 - L276). LC Type This is the basic L coupling, except the insert is a snap wrap elastomer with retaining collar. Designed for easy elastomer replacement without disturbing the hubs, this coupling type is suited for applications over 1750 RPM. AL Type The aluminum construction means this coupling is light weight with low overhung load and low inertia. The AL type also offers excellent resistance to atmospheric conditions, so it is perfect for corrosive environment applications. SS Type New SS type stainless steel hubs available for applications needing maximum protection against harsh environmental conditions. Sizes SS075-SS150 available from stock. Other sizes available on request. RRS Type The center drop out section of this coupling provides proper shaft separation while also allowing easy elastomer installation without disturbing the hubs or requiring realignment of shafts. Designed for the pump industry, it accommodates American and European industry standard pump/motor shaft separations. The drop out spacer is made of glass reinforced plastic, cast iron or aluminum. SW Type This coupling is the standard L Type with a snap wrap elastomer with retaining ring. It is well suited for standard shaft-to-shaft connection in general industrial purpose applications under 1750 RPM. C & H Types These couplings provide standard shaft-to-shaft connection for medium (C) and heavy (H) duty range applications. The standard C coupling hub is made of cast iron, while the H is constructed of ductile iron. JW-2 AL COUPLING SS COUPLING RRS COUPLING SW COUPLING C & H COUPLINGS The new Jaw In-Shear coupling is presented in the next section of this catalog, labeled JIS on the page tabs

39 Jaw Type Overview Elastomers-in-Compression Lovejoy offers four types of elastomer designs to allow for additional flexibility in addressing specific application requirements. One piece designs are used in the L and AL models (referred to as spiders) and multiple part load cushions are used in the C and H model couplings. The load cushions are in sets of 6 to 14 pieces depending on coupling size. JW Solid Center Spider The solid center design is the most commonly used in general power transmission applications when the shafts of the driver and driven can be kept separate by a standard gap. Open Center Spider The open center spider design allows the shafts of the driver and driven to be positioned within a short distance. Open center spiders offer shaft positioning flexibility but have a lower maximum RPM capability. (1750 RPM max. for NBR, 3600 RPM max. for Urethane/Hytrel.) Cushions The cushion design is available exclusively for the Lovejoy Types C and H jaw couplings. The load cushions are held in place radially by a steel collar which is attached to one of the hubs. This design allows for easy installation and removal of the load cushions. The cushion design has the same engineering purpose as the spider designs but is more effective in the heavy duty applications that Types C and H couplings address. Snap Wrap Flexible Spider The snap wrap flexible spider design allows the spider section of the coupling to be easily installed or removed without disturbing the coupling hubs. This design also allows for close shaft separations all the way up to the hubs maximum bore, which is not possible with open center spiders. Maximum RPM is 1750 with retaining ring, but if used in LC Type (with collar) the normal RPM rating of the coupling size applies. This style is available in NBR and Urethane only, and in limited sizes. NOTE: Complete technical data for the new Jaw In-Shear elastomer is contained in the next section of this catalog, labeled JIS on the page tabs. Spider Materials SOX (NBR) Rubber Nitrile Butadiene (Buna N) Rubber, a highly flexible insert material that is oil resistant, is our standard elastomer. It resembles natural rubber in resilience and elasticity, and operates effectively in temperature ranges of - 40º to + 212º F (-40º to +100ºC). (Also applies to SXB Cushions.) Urethane Urethane has 1.5 times greater torque capability than NBR and offers good resistance to oil and chemicals. However, this material provides less dampening effect and operates at a temperature range of -30º to +160º F (-34º to +71ºC). Hytrel Hytrel is a flexible elastomer designed for high torque and high temperature operations. Hytrel can operate in temperatures of -60º to +250º F (-51º to +121ºC) and has an excellent resistance to oil and chemicals. It is best used in continuous load applications rather than cyclic or on/off service. Bronze Bronze is a rigid, porous, oil-impregnated metal insert exclusively for low speed (max. 250 RPM) applications requiring high torque capabilities. Bronze performance is not affected by water, oil, dirt, or extreme temperatures operates in temperatures of -40º to +450º F (-40º to +232º C).! WARNING You must refer to page iv for Important Safety Instructions and Precautions for the selection and use of these products. Failure to follow the instructions and precautions can result in severe injury or death. JW-3

40 Jaw Type Selection Process JW Jaw Type Coupling Selection Process The selection process for determining the proper jaw coupling size and elastomer requires using the charts shown on the following pages. There are three components to be selected, two hubs and one elastomer. When the shaft size of the driver and driven of the application are of the same diameter, the hubs selected will be the same. When shaft diameters differ, hubs selected will differ accordingly. Information necessary before a coupling can be selected: HP (or KW) and RPM or Torque of driver Shaft sizes of driver and driven equipment and corresponding keyways Application description Environmental conditions (i.e. extreme temperature, corrosive conditions, space limitations) List of Charts provided for Selection: Chart 1 Application Service Factors (pg. JW-6) Chart 2 Spider Performance Data (pg. JW-7) Chart 3 Coupling Nominal Rated Torque (pg. JW-7 or JW-20) Formulas: Nominal Torque = in-lb = Nm = (HP x 63025) RPM (KW x 9550) RPM Design Torque = Nominal Torque x Application Service Factor Steps In Selecting A Jaw Coupling Step 1: Determine the Nominal Torque of your application by using the following formula: Nominal Torque = in-lb = (HP x 63025) RPM Nm = (KW x 9550) RPM Step 2: Using the Application Service Factors Chart 1 (pg. JW-6) select the service factor which best corresponds to your application. Step 3: Calculate the Design Torque of your application by multiplying the Nominal Torque calculated in Step 1 by the Application Service Factor determined in Step 2. Design Torque = Nominal Torque x Application Service Factor Step 4: Using the Spider Performance Data Chart 2 (pg. JW-7), select the elastomer material which best corresponds to your application. Step 5: Using the Coupling Nominal Rated Torque Chart 3 (pg. JW-7), locate the appropriate elastomer material column for the elastomer selected in Step 4. Scan down this column to the first entry where the Torque Value in the appropriate column is greater than or equal to the Design Torque calculated in Step 3. Once this value is located, refer to the corresponding coupling size in the first column of the Coupling Nominal Rated Torque Chart 3 (pg. JW-7). Refer to the maximum RPM value (pg. JW-20) for this elastomer torque capability to ensure that the application requirements are met. If the requirement is not satisfied at this point, another type of coupling may be required for the application. Please consult our Lovejoy application engineers. Step 6: Compare the application driver/driven shaft sizes to the maximum bore size available on the coupling selected. If coupling bore size is not large enough for the shaft diameter, select the next largest coupling that will accommodate the driver/driven shaft diameters. Refer to Chart 3 (pg. JW-7). Step 7: Using the Item (UPC) Number Selection charts (pgs. JW-9 and JW-10), find the appropriate Bore and Keyway sizes required and locate the Lovejoy Item (UPC) number. JW-4

41 Jaw Type Selection Process Selection Example A coupling is needed to connect a 20 HP standard electric motor rated at 1800 RPM to a rotary pump. The shaft size of the electric motor (driver) is 2.0 inches and the pump (driven) is 1.75 inches. There are no special environmental conditions and the general operating temperature is normal room temperature of 72º F. Less than 1º of misalignment is expected. Step 1: Determine the Nominal Torque: Nominal Torque = (HP x 63025) RPM = (20 x 63025) 1800 = in-lb Step 2: Using the Application Service Factor Chart 1 (pg. JW-6), select the service factor which best corresponds to your application. The Application Service Factor for an electric motor with standard torque driving a rotary pump is The value of 1.25 is found under the application category Pumps, Rotary, column: Electric Motor w/standard Torque in Chart 1. shaft sizes. Therefore, the proper coupling size for this application is a Lovejoy L190 with an NBR elastomer. Step 7: Using the Item (UPC) number Selection charts, locate the appropriate Lovejoy Item (UPC) numbers. The L Type Coupling Elastomer chart (pg. JW-8), and the L Type Coupling Inch Hubs chart (pg. JW-10), provides easy reference to the Lovejoy Item (UPC) numbers. Locate the L Type Couplings Elastomer chart (pg. JW-8). The elastomer is selected by scanning down the type column and locating the NBR (Solid) entry. Read across to the L190 column and locate the Lovejoy Item (UPC) number of This number should be prefixed with the Lovejoy Item (UPC) number of Locate the L Type Coupling Inch Hubs selection chart (pg. JW-10). JW Step 3: Calculate the Design Torque of your application: Design Torque = Nominal Torque x Application Service Factor = x 1.25 = in-lb Step 4: Using the Elastomer Performance Data Chart 2 (pg. JW-7), select the elastomer material which best corresponds to your application. Since there are no special environmental conditions, the operating temperature is 72ºF and less than 1º of angular misalignment is required, the NBR elastomer material is selected. The first bore size to be located is for the 2 inch shaft on the electric motor. Scan down the Bore/Keyway column to the 2 inch bore entry. Read across to the L190 column to locate the Lovejoy Item (UPC) number of This number should be prefixed with the Lovejoy Item (UPC) number of The second bore size to be located is for the 1.75 inch shaft on the pump. Scan down the Bore/Keyway column to the 1 3 / 4 inch bore entry. Read across to the L190 column to locate the Lovejoy Item (UPC) number of This number should be prefixed with the Lovejoy Item (UPC) number of Step 5: Using the Coupling Nominal Rated Torque Chart 3 (pg. JW-7), the NBR elastomer column is used to determine the proper coupling size. Scanning down the NBR column, the first entry to accommodate the Design Torque value of in-lb is the size L150 with a nominal torque rating of 1,240 in-lb. Referring to page JW-20, the maximum RPM of 1800 on the electric motor of the application does not exceed the 5000 RPM maximum allowed for the L150 size coupling with an NBR elastomer. Step 6: Compare the application driver/driven shaft size to the maximum bore available in the coupling selected (pg. JW-7). The electric motor (driver) of this application has a shaft size of 2.0 inches and the pump (driven) has a shaft size of 1.75 inches. The L150 coupling has a maximum bore less than the driver shaft size. Continuing down the Maximum Bore column, in Chart 3 (pg. JW-7), the L190 size is found to have a maximum bore size of and is able to accommodate the driver/driven JW-5

42 Jaw Type Selection Data JW Application Service Factors Chart 1 Service Factors Service Factors Service Factors 1-2- Cyl. Cyl. Agitators Band Resaw (lumber) Barge Haul Puller Beaters Blowers Centrifugal Lobe, Vane Bottling Machinery Brew Kettles (distilling) Can Filling Machinery Car Dumpers Car Pullers Card Machine Chiller (oil) Compressors Centrifugal Screw, Lobe Reciprocating.. See Note Conveyors, Uniformly Fed Assembly, Belt, Screw Bucket, Sawdust Live Roll, Shaker, Reciprocating Conveyors, Not Uniformly Fed Assembly, Belt,...Oven, Screw Reciprocating Shaker Cookers Brewing, Distilling, Food Cranes & Hoist Crushers Cane (sugar), Stone, or Ore Dredges Cable reels Conveyors, Pumps, Maneuvering Winches Cutter Head Drives Dynamometer Evaporators Fans Centrifugal Cooling Towers Forced Draft, Propeller Induced draft w/damper control Induced draft w/o damper control JW-6 Electric Motor w/ Standard Torque Electric Motor w/ High Torque Steam Turbines & Engines w/4 or more cyl.* Reciprocating Engines* Electric Motor w/ Standard Torque Electric Motor w/ High Torque Steam Turbines & Engines w/4 or more cyl.* Reciprocating Engines* 1-2- Cyl. Cyl. Feeders Belt, Screw Reciprocating Filter, Press-oil Generators Not Welding Welding Hoist Hammermills Kilns Laundry Washers Reversing Lumber Machinery Barkers, Edger Feeder, Live Roll Planer, Slab Conveyor Machine Tools Punch Press-gear Driven, Plate Planer Tapping Machinery, Bending Roll Main Drive Auxiliary Drives Metal Forming Machines Draw Bench-carriage & Main Drive Extruder, Forming Machine, Wire Drawing Table Conveyors Wire Winding, Coilers, Slitters Mills, Rotary Type Ball, Kilns, Pebble, Rolling, Tube Cement Kilns, Dryers, Coolers Tumbling Mixers Concrete, continuous Muller Paper Mills Agitator (mixers), Reel, Winder Winder Barker (mechanical), Log Haul, Chipper Barking Drum (spur gear) Electric Motor w/ Standard Torque Electric Motor w/ High Torque Steam Turbines & Engines w/4 or more cyl.* Reciprocating Engines* 1-2- Cyl. Cyl. Beater, Pulper, Jordans, Dresses Calenders, Dryers, Washers, Thickener Converting Machines, Conveyors Printing Presses Pug Mill Pumps Centrifugal Gear, Rotary, Vane Reciprocating: 1 Cyl. Single or Double Acting Cyl. Single Acting Cyl. Double Acting or more Cyl Rubber Machinery Mixers Rubber Calender Screens Air washing, Water Rotary stone or gravel, Dewatering Vibrating Grizzly Shredders Steering Gears Stokers Suction Roll (paper) Textile Machinery Dryers, Dyeing Machinery, Mangle Loom, Spinner, Tenter frames Tumbling Barrels Windlass Woodworking Mach Caution: Applications involving reciprocating engines and reciprocating driven devices are subject to critical rotational speeds which may damage the coupling and/or connected equipment. Contact Lovejoy Engineering with specific requirements.

43 Jaw Type Selection Data Spider Performance Data Chart 2 Characteristics SOX (NBR) Rubber Nitrile Butadiene (Buna N) Rubber is a flexible elastomer material that is oil resistant, resembles natural rubber in resilience and elasticity and operates effectively in temperature range of -40 to +212ºF (-40 to +100ºC). Good resistance to oil. Standard elastomer. (Also applies to SXB Cushions.) URETHANE Urethane has greater torque capability than NBR (1.5 times), provides less dampening effect, and operates at a temperature range of -30 to +160ºF (-34 to +71ºC). Good resistance to oil and chemicals. Not recommended for cyclic or start/stop applications. HYTREL Hytrel is a flexible elastomer designed for high torque and high temperature operations. Hytrel can operate in temperatures of -60F to +250ºF (-51 to+121ºc) and has an excellent resistance to oil and chemicals. Not recommended for cyclic or start/stop applications. BRONZE Bronze is a rigid, porous oil-impregnated metal insert exclusively for slow speed (maximum 250 RPM) applications requiring high torque capabilities. Bronze operations are not affected by extreme temperatures, water, oil, or dirt. Temperature Range -40º to +212º F -40º to +100º C -30º to +160º F -34º to +71º C -60º to +250º F -51º to 121º C -40º to +450º F -40º to +232º C Misalignment Angular Parallel Degree Inch Notes: 1. NBR standard shore hardness is 80A ±5A Except L035=60A. Other softer or harder designs are available in NBR material; consult Lovejoy. 2. Chemical Resistance chart shown in Engineering Data section Shore Hardness 1 80A 55D L050-L A L150-L225 Coupling Nominal Rated Torque Chart 3 Maximum Spider Material Bore SOX(NBR) Torque Urethane Torque Hytrel Torque Bronze Torque Size Inch mm in-lbs Nm in-lbs Nm in-lbs Nm in-lbs Nm 1º 1º 1 /2 º 1 /2 º 55D Dampening Capacity HIGH LOW LOW NONE Chemical Resistance 2 GOOD VERY GOOD EXCELLENT EXCELLENT Color BLACK BLUE TAN BRONZE JW Note: L N/A N/A N/A N/A N/A N/A L/AL L/AL L/AL L/AL L/AL L/AL L/AL L/AL L AL N/A N/A N/A N/A N/A N/A L L L N/A N/A N/A N/A C N/A N/A C N/A N/A N/A N/A C N/A N/A N/A N/A C N/A N/A N/A N/A C N/A N/A C N/A N/A H N/A N/A H N/A N/A H N/A N/A H N/A N/A H N/A N/A Bronze has a maximum RPM capability of 250 RPM. N/A indicates not available. JW-7

44 Jaw Type Item Selection JW L Type Coupling The L Type sizes range from L035 to L276. Ordering requires selecting Item (UPC) numbers for two standard L hubs and one standard open or solid center elastomer (spider). SW Type Coupling The SW Type sizes range from L090 to L190. Ordering requires selecting Item (UPC) numbers for two standard L hubs and one snap wrap spider. For both L and SW Type couplings, select hubs from the Standard Bore and Keyway chart (pgs. JW-9 and JW-10). Max. RPM for SW + Ring is 1750 RPM. LC coupling types must be used for speeds above 1750 RPM. The LC Type coupling uses a snap wrap spider with a collar instead of a retaining ring. Jaw In-Shear Coupling Ordering requires selecting item numbers for two standard hubs, one In-Shear elastomer and one In-Shear ring. See pages JIS-1 through JIS-4. L Type Coupling Spiders When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Type L035 L050 L070 L075 L090/095 L099/100 L110 L150 L190 L225 L276 SOX(NBR) (Solid) SOX(NBR) (open center) Urethane (Solid) Urethane (open center) Hytrel (Solid) Hytrel (open center) Bronze (open center) Snap Wrap (NBR) w/ring Snap Wrap (NBR) w/o ring SOX (NBR) Bulk - pk SOX (NBR) Bulk - pk Snap Wrap Urethane - solid ring In-Shear Elastomer In-Shear Ring L Type Hub Spline Bore Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Spline Bore Diameters Teeth Pitch SAE Major Minor Major Diam. L090 L095 L099 L100 L110 L150 L190 L225 L /32 A / /32 B /16 D, E /24 C /32 BB / / / /16 F Notes: 1. All pressure angles on above splines = 30º. Class 5 fit is standard, unless otherwise specified. 2. All stock spline bore hubs are supplied standard with Lovejoy s exclusive Centaloc Spline Locking Feature. See page C-21 for description. JW-8

45 Jaw Type Item Selection L Type Metric Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. JW Bore Keyway 3 x x x x x x x x x x x x x x x x x x x x x x x x x x x x 4.9 L L L L L L L L L L L L L Notes: 1. Tolerances for bore and keyways are found in Engineering Data section (pg. 14). All hubs supplied standard with one set screw. 2. Non-standard bores available consult Lovejoy Engineering. JW-9

46 Jaw Type Item Selection JW L Type Inch Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Bore inch 1 /8 3 /16 1 /4 1 /4 5 /16 3 /8 3 /8 3 /8 7 /16 7 /16 7 /16 1 /2 1 /2 9 /16 9 /16 5 /8 5 /8 5 /8 11 /16 3 /4 3 /4 3 /4 13 /16 7 /8 7 /8 7 /8 15 / / / / / / / / / / / / / / / / / / / / / / / / / / / 8 Notes: JW-10 Keyway 1 /8 x 1 /16 3 /32 x 3 /64 1 /8 x 1 /16 3 /32 x 3 /64 1 /8 x 1 /16 1 /8 x 1 /16 1 /8 x 1 /16 5 /32 x 5 /64 3 /16 x 3 /32 3 /16 x 3 /32 1 /8 x 1 /16 3 /16 x 3 /32 3 /16 x 3 /32 3 /16 x 3 /32 1 /4 x 1 /8 1 /4 x 1 /8 1 /4 x 1 /8 3 /16 x 3 /32 1 /4 x 1 /8 1 /4 x 1 /8 1 /4 x 1 /8 1 /4 x 1 /8 5 /16 x 5 /32 5 /16 x 5 /32 5 /16 x 5 /32 3 /8 x 3 /16 3 /8 x 3 /16 5 /16 x 5 /32 3 /8 x 3 /16 3 /8 x 3 /16 3 /8 x 3 /16 3 /8 x 3 /16 3 /8 x 3 /16 7 /16 x 7 /32 1 /2 x 1 /4 1 /2 x 1 /4 1 /2 x 1 /4 1 /2 x 1 /4 1 /2 x 1 /4 1 /2 x 1 /4 1 /2 x 1 /4 1 /2 x 1 /4 5 /8 x 5 /16 5 /8 x 5 /16 3 /4 x 3 /8 L L L L L L L L L L L Tolerances for bore and keyways are found in Engineering Data section (pg. 16). All hubs supplied standard with one set screw. 2. Non-standard bores available consult Lovejoy Engineering. L L

47 Jaw Type Item Selection LC Type Couplings LC Type couplings range in size from LC090 to LC225. The coupling design provides for a collar to be attached to our hub shielding the snap wrap spider. Ordering requires selecting Item (UPC)) numbers for one standard L Type hub (without collar attachment), (pgs. JW-9, JW-10), one LC Type hub (provides collar attachment), one standard snap wrap center insert and one collar with screws. Snap Wrap Spider and Collar Chart When referencing the Lovejoy Item(UPC) number, include as a prefix to the number shown in the table below. LC090 LC095 LC099 LC100 LC110 LC150 LC190 LC225 Snap Wrap Spider/No Ring * Collar Only w/screws Note: *indicates L225 snap wrap spider is urethane, solid ring. JW LC Type Metric Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC)) number, include as a prefix to the number shown in the table below. Bore Keyway mm mm LC090 LC095 LC099 LC100 LC110 LC150 LC190 LC x x x x x x x x x x x x x x x x x x x x x x x x x x 4.4 Notes: 1. These LC hubs are drilled and tapped to accept collar mounting screws but the collar and hardware are not included. 2. See L Type (inch or metric) coupling hub chart for standard hub (pgs. JW-9 and JW-10). 3. Tolerances for bore and keyways are found in Engineering Data section (pg. 15). 4. All hubs are supplied with one set screw. JW-11

48 Jaw Type Item Selection JW LC Type Couplings Ordering requires selecting Item (UPC) numbers for one standard L Type hub (without collar attachment), (pgs. JW-9, JW-10), one LC Type hub (provides collar attachment), one standard snap wrap center insert, (pg. JW-11), and one collar with screws, (pg. JW-11). LC Type Inch Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC)) number, include as a prefix to the number shown in the table below. Bore 1 /4 3 /8 1 /2 1 /2 5 /8 5 /8 5 /8 3 /4 3 /4 3 /4 13 /16 7 /8 7 /8 15 / / / / / / / / / / / / / / / / / / / 8 Keyway 1 /8 x 1 / 16 5 /32 x 5 / 64 3 /16 x 3 / 32 1 /8 x 1 / 16 3 /16 x 3 / 32 3 /16 x 3 / 32 3 /16 x 3 / 32 1 /4 x /4 x 1 / 8 1 /4 x 1 / 8 3 /16 x 3 / 32 1 /4 x 1 / 8 1 /4 x 1 / 8 1 /4 x 1 / 8 5 /16 x 5 / 32 5 /16 x 5 / 32 5 /16 x 5 / 32 3 /8 x 3 / 16 5 /16 x 5 / 32 3 /8 x 3 / 16 3 /8 x 3 / 16 3 /8 x 3 / 16 3 /8 x 3 / 16 7 /16 x 7 / 32 1 /2 x 1 / 4 1 /2 x 1 / 4 1 /2 x 1 / 4 1 /2 x 1 / 4 1 /2 x 1 / 4 5 /8 x 5 / 16 LC LC LC LC LC LC LC LC Notes: 1. These LC hubs are drilled and tapped to accept collar mounting screws but the collar and hardware are not included. 2. See L Type (inch or metric) coupling chart for standard hub. 3. Tolerances for bore and keyways are found in Engineering Data section (pg. 16). 4. All hubs are supplied standard with one set screw. JW-12

49 Jaw Type Item Selection AL Type Couplings Ordering requires selecting Item (UPC) numbers for two hubs and one spider. JW AL Type Coupling Spiders When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Note: Type AL050 AL070 AL075 AL090/095 AL099/100 AL110 AL150 SOX (NBR) (solid) SOX (NBR) (open center) Urethane (solid) Urethane (open center) Hytrel (solid) Hytrel (open center) Bronze (open center) Snap Wrap w/ring Snap Wrap no ring AL Type couplings use the same spiders as L Type couplings, except AL150 which has four jaws instead of three. AL Type Metric Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Bore Keyway mm mm AL050 AL070 AL075 AL090 AL095 AL099 AL100 AL110 AL x x x x x x x x x x x x x x x x x x x x Notes: 1. Tolerances for bore and keyways are found in Engineering Data section (pg. 14). 2. Lovejoy does not recommend reboring AL hubs. 3. All hubs are supplied standard with one set screw, except the AL150 which is provided with two set screws. JW-13

50 Jaw Type Item Selection JW AL Type Couplings Ordering requires selecting Item (UPC) numbers for two hubs and one spider. AL Type Inch Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Bore Keyway AL050 AL070 AL075 AL090 AL095 AL099 AL100 AL110 AL150 1 / / / / / /2 1 /8 x 1 / / /16 1 /8 x 1 / / /8 3 /16 x 3 / /16 3 /16 x 3 / /4 1 /8 x 1 / /4 3 /16 x 3 / /16 3 /16 x 3 / /8 3 /16 x 3 / /16 1 /4 x 1 / /4 x 1 / / 16 1 /4 x 1 / / 8 1 /4 x 1 / / 16 1 /4 x 1 / / 4 1 /4 x 1 / / 16 5 /16 x 5 / / 8 5 /16 x 5 / / 16 3 /8 x 3 / / 2 3 /8 x 3 / / 16 3 /8 x 3 / / 8 3 /8 x 3 / / 16 3 /8 x 3 / / 4 3 /8 x 3 / / 16 1 /2 x 1 / / 8 1 /2 x 1 / Notes: 1. Tolerances for bore and keyways are found in Engineering Data section (pg. 16). 2. Lovejoy does not recommend reboring AL hubs. 3. All hubs are supplied standard with one set screw, except the AL150 which is provided with two set screws. SS Type Inch Hubs ype Inch Hubs Standard Bore and Keyway Chart When reference the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table shown. Size RSB 1/4 1/2 5/8 3/4 7/8 1" 1-1/8 1-3/8 1-1/2 1-5/8 1-3/4 1-7/8 SS SS SS SS SS JW-14

51 Jaw Type Item Selection Radially Removable Spacer RRS Couplings The RRS Type couplings range from sizes RRS090 to RRS225. Ordering requires selecting Item (UPC) numbers for: RRS090 RRS110: RRS150 RRS225: 2 Standard RRS Hubs 1 Standard RRS Hub 1 Spacer Assembly consisting of: 1 Standard RRSC Hub 2 snap wrap spiders w/o ring Drilled for Collar 2 collars with screws 1 Spacer Assembly consisting of: 1 spacer 2 snap wrap spiders w/o ring 2 collars with screws 1 spacer JW Note: RRS Type Inch Hubs provided standard with two set screws at 90º. Metric Hubs provided standard with one set screw. RRS Type Coupling Spacer Assembly When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Description RRS090 RRS095 RRS099 RRS100 RRS110 RRS150 RRS190 RRS / 2 Spacer Assembly Spacer Assembly Spacer Assembly mm Spacer Assembly mm Spacer Assembly mm Spacer Assembly Note: Spacer length denotes separation between shaft ends. Assembly includes spacer, two snap wrap spiders w/o ring, and two collars with screws. See page JW-8 for ordering information on spiders. RRS Type Metric Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Bore Keyway mm mm RRS090 RRS095 RRS099 RRS100 RRS110 RRS150 RRS190 RRS x x x x x x x x x x x x x x x Note: DIN Metric Hubs are standard with one set screw only. JW-15

52 Jaw Type Item Selection Radially Removable Spacer RRS Couplings JW RRS Type Inch Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Bore 7 /16 7 /16 1 /2 1 /2 1 /2 9 /16 5 /8 5 /8 3 /4 3 /4 7 /8 7 / / / / / / / / / / / / 8 Keyway 3 /16 x 3 /32 1 /8 x 1 /16 3 /16 x 3 /32 3 /16 x 3 /32 3 /16 x 3 /32 3 /16 x 3 /32 1 /4 x 1 /8 3 /16 x 3 /32 1 /4 x 1 /8 1 /4 x 1 /8 5 /16 x 5 /32 1 /4 x 1 /8 5 /16 x 5 /32 3 /8 x 3 /16 3 /8 x 3 /16 3 /8 x 3 /16 3 /8 x 3 /16 1 /2 x 1 /4 1 /2 x 1 /4 1 /2 x 1 /4 5 /8 x 5 /16 RRS RRS RRS RRS RRS RRS RRS RRS Note: RRS inch hubs are standard with two set screws, including those with no keyway. RRS Type Couplings RRSC Hubs (Collar Drilled) When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the tables below. Metric Hubs Standard Bore and Keyway Chart Bore mm Note: Keyway mm 10 x x x 3.3 RRSC RRSC RRSC RRSC hubs are standard with two set screws and are drilled to accept retaining collar. Collars are supplied with spacers. Inch Hubs Standard Bore and Keyway Chart Bore 5 /8 3 /4 3 /4 7 / / / / / / / / 8 Keyway 3 /16 x 3 / 32 3 /16 x 3 / 32 1 /4 x 1 / 8 1 /4 x 1 / 8 5 /16 x 5 / 32 3 /8 x 3 / 16 3 /8 x 3 / 16 3 /8 x 3 / 16 1 /2 x 1 / 4 1 /2 x 1 / 4 1 /2 x 1 / 4 RRSC RRSC RRSC JW-16 Note: RRSC inch hubs are standard with two set screws and are drilled to accept retaining collar. Collars are supplied with spacers.

53 Jaw Type Item Selection C Type Couplings Complete coupling selection includes two standard hubs, one cushion set, and one collar with hardware. Cushions and Collar Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Size C226 C276 C280 C285 C295 C2955 Number of Cushions SXB(NBR) cushion set Hytrel cushion set Bronze cushion set Collar with hardware Note: Chemical resistance and compatibility for cushions is described in Engineering Data section (pg. ED-13). C Type Metric Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Bore Keyway mm mm C226 C276 C280 C285 C295 C x x x x x x x x x x x x x x x C Type Inch Hubs Standard Bore and Keyway Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Bore Keyway C226 C276 C280 C285 C295 C /8 RSB / 8 1 /4 x 1 / / 4 RSB / 4 1 /4 x 1 / / 8 5 /16 x 5 / / 16 3 /8 x 3 / / 2 RSB / 2 3 /8 x 3 / / 8 3 /8 x 3 / / 4 RSB / 4 3 /8 x 3 / / 8 1 /2 x 1 / /2 x 1 / / 8 1 /2 x 1 / / 4 1 /2 x 1 / / 8 5 /8 x 5 / / 2 5 /8 x 5 / / 8 5 /8 x 5 / /8 3/4 x 3/ /4 x 3 / / 8 7 /8 x 7 / / 2 7 /8 x 7 / / 8 7 /8 x 7 / / 4 7 /8 x 7 / / 8 1 x 1 / x 1 / Note: Note: RSB (Rough Stock Bore) hub has no keyway or set screw hole, it is not useable as shown and must be machined to proper bore tolerances. Hub includes inside sleeve and is drilled and tapped for collar bolts. Nonstandard bores available consult Lovejoy Engineering. For RSB hub part numbers see the C Type Inch Hub chart. RSB (Rough Stock Bore) hub has no keyway or set screw hole, it is not useable as shown and must be machined to proper bore tolerances. Hub includes inside sleeve and is drilled and tapped for collar bolts. Nonstandard bores available consult Lovejoy Engineering. JW-17 JW

54 Jaw Type Item Selection JW H Type Couplings Complete H Type coupling selection includes two hubs, two inside sleeves, one cushion set, and one collar with hardware. H Type coupling hubs are supplied with an inside sleeve. For technical assistance, please contact Lovejoy Engineering. Cushions and Collar Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Size H3067 H3567 H3667 H4067 H4567 No. of Cushions SXB cushion set Hytrel cushion set Collar w/hardware H Type Hubs Rough Stock Bore Chart When referencing the Lovejoy Item (UPC) number, include as a prefix to the number shown in the table below. Bore H3067 H3567 H3667 H4067 H / 8 RSB / 8 RSB RSB / 4 RSB / 2 RSB Notes: 1. RSB (Rough Stock Bore) hub has no keyway or set screw hole. 2. RSB bores should not be used as shown and may need additional machining to reach proper tolerances. JW-18