LOVEJOY Jaw Coupling Spiders

Lovejoy jaw coupling spiders are engineered to transfer torque and rotation from one shaft to another. These Lovejoy couplings can accommodate misaligned shafts, and secure them from damage due to damping & vibrations. Lovejoy spider couplings are available in L, AL and LC types, as well as bronze, Hytrel, polyurethane, SOX (NBR), rubber and stainless steel construction variants.


Lovejoy coupling spiders are ideal for transferring and absorbing load from coupling hubs connected to shafts for power transmission applications. These spiders are ideal for blowers, compressors, gear boxes, pumps, conveyors, and mixers.


L Type Spiders, Open Center

StyleModelCoupling SizeMaterialBore SizeColorNominal TorqueNormal Temperature RangePrice (ex. VAT)Pkg. Qty.
A68514410198L050Bronze0.625"Bronze50 In.Lbs.-40 to 450°F$28.491
B68514410393L070SOX (NBR) Rubber0.75"Black43.2 In.Lbs.-40 to 212°F$11.671
A68514410409L070Bronze0.75"Bronze114 In.Lbs.-40 to 450°F$33.401
C68514410411L070Urethane0.75"Blue65 In.Lbs.-30 to 160°F$17.151
D68514425308L070Hytrel0.75"Tan114 In.Lbs.-60 to 250°F$24.891
A68514410624L075, AL075Bronze0.875"Bronze227 In.Lbs.-40 to 450°F$49.841
D68514425309L075, AL075Hytrel0.875"Tan227 In.Lbs.-60 to 250°F$34.351
E68514410620L075, AL075SOX (NBR) Rubber0.875"Black90 In.Lbs.-40 to 212°F$15.641
C68514410626L075, AL075Urethane0.875"Blue135 In.Lbs.-30 to 160°F$9.751
E68514410968L090, L095, AL090, AL095SOX (NBR) Rubber-Black144 to 194 In.Lbs.-40 to 212°F$18.471
A68514411073L090, L095, AL090, AL095Bronze-Bronze401 to 561 In.Lbs.-40 to 450°F$54.381
D68514425310L090, L095, AL090, AL095Hytrel-Tan401 to 561 In.Lbs.-60 to 250°F$43.801
C68514411075L090, L095, AL090, AL095Urethane-Blue216 to 291 In.Lbs.-30 to 160°F$25.841
C68514411499L099, L100, AL099, AL100Urethane-Blue477 to 626 In.Lbs.-30 to 160°F$58.161
E68514411492L099, L100, AL099, AL100SOX (NBR) Rubber-Black318 to 417 In.Lbs.-40 to 212°F$32.271
D68514411486L099, L100, AL099, AL100Hytrel-Tan792 to 1134 In.Lbs.-60 to 250°F$95.951
A68514411497L099, L100, AL099, AL100Bronze-Bronze792 to 1134 In.Lbs.-40 to 450°F$77.441
E68514411711L110, AL110SOX (NBR) Rubber1.625"Black792 In.Lbs.-40 to 212°F$30.241
C68514411729L110, AL110Urethane1.625"Blue1188 In.Lbs.-30 to 160°F$105.021
A68514411727L110, AL110Bronze1.625"Bronze2268 In.Lbs.-40 to 450°F$91.801
D68514438097L110, AL110Hytrel1.625"Tan2268 In.Lbs.-60 to 250°F$114.851
C68514412006L150Urethane1.875"Blue1860 In.Lbs.-30 to 160°F$125.801
A68514412004L150Bronze1.875"Bronze3706 In.Lbs.-40 to 450°F$281.891
F68514438098L150Hytrel1.875"Tan3708 In.Lbs.-60 to 250°F$136.761
E68514437880L150SOX (NBR) Rubber1.875"Black1240 In.Lbs.-40 to 212°F$49.451

L Type Spiders, Solid Centers

StyleModelCoupling SizeMaterialColorNominal TorqueNormal Temperature RANGEPrice (ex. VAT)Pkg. Qty.
A68514410119L035SOX (NBR) RubberBlack3.5 In.Lbs.-40 to 212°F$8.841
A68514410118L035SOX (NBR) RubberBlack3.5 In.Lbs.-40 to 212°F$8.841
A68514410199L050SOX (NBR) RubberBlack26.3 In.Lbs.-40 to 212°F$3.961
A68514410197L050SOX (NBR) RubberBlack26.3 In.Lbs.-40 to 212°F$9.961
B68514437786L050UrethaneBlue39 In.Lbs.-30 to 160°F$22.051
C68514425307L050HytrelTan50 In.Lbs.-60 to 250°F$19.421
A68514410194L050SOX (NBR) RubberBlack26.3 In.Lbs.-40 to 212°F$9.961
A68514410391L070SOX (NBR) RubberBlack43.2 In.Lbs.-40 to 212°F$11.671
A68514410406L070SOX (NBR) RubberBlack43.2 In.Lbs.-40 to 212°F$11.671
B68514410395L070UrethaneBlue65 In.Lbs.-30 to 160°F$17.151
A68514410621L075, AL075SOX (NBR) RubberBlack90 In.Lbs.-40 to 212°F$15.641
A68514410622L075, AL075SOX (NBR) RubberBlack90 In.Lbs.-40 to 212°F$9.641
A68514411070L090, L095, AL090, AL095SOX (NBR) RubberBlack144 to 194 In.Lbs.-40 to 212°F$18.471
A68514411494L099, L100, AL099, AL100SOX (NBR) RubberBlack318 to 417 In.Lbs.-40 to 212°F$32.271
A68514411724L110, AL110SOX (NBR) RubberBlack792 In.Lbs.-40 to 212°F$36.241
C68514411717L110, AL110HytrelTan2268 In.Lbs.-60 to 250°F$114.851
A68514412001L150SOX (NBR) RubberBlack1240 In.Lbs.-40 to 212°F$49.451
C68514411993L150HytrelTan3708 In.Lbs.-60 to 250°F$136.761
A68514412274L190SOX (NBR) RubberBlack1728 In.Lbs.-40 to 212°F$58.911
C68514412265L190HytrelTan4680 In.Lbs.-60 to 250°F$160.201
A68514412409L225SOX (NBR) RubberBlack2340 In.Lbs.-40 to 212°F$69.311
C68514412401L225HytrelTan6228 In.Lbs.-60 to 250°F$187.041

CJ Series Spiders

StyleModelSpider SizeMaterialColorNominal TorqueSpider TYPECoupling TYPEStyleTemp. RANGEPrice (ex. VAT)Pkg. Qty.
A6851446144614PolyurethaneYellow66 In.Lbs.92 Shore AElastomeric InsertOpen-50 to 248°F$6.621
B6851446206714PolyurethaneRed111 In.Lbs.98 Shore AElastomeric InsertOpen-40 to 248°F$6.621
A6851446144719PolyurethaneYellow88 In.Lbs.92 Shore AElastomeric InsertOpen-50 to 248°F$15.641
C6851446146119PolyurethaneBlue43 In.Lbs.80 Shore AElastomeric InsertOpen-40 to 248°F$9.641
B6851446206924PolyurethaneRed530 In.Lbs.98 Shore AElastomeric InsertOpen-40 to 248°F$17.351
C6851446146224PolyurethaneBlue530 In.Lbs.80 Shore AElastomeric InsertOpen-40 to 248°F$11.351
A6851446144824PolyurethaneYellow310 In.Lbs.92 Shore AElastomeric InsertOpen-50 to 248°F$17.351
C6851446146328PolyurethaneBlue407 In.Lbs.80 Shore AElastomeric InsertOpen-40 to 248°F$14.931
D6851447225828PolyurethaneGreen1770 In.Lbs.64 Shore DElastomeric InsertOpen-30 to 266°F$35.911
B6851446207028PolyurethaneRed1415 In.Lbs.98 Shore AElastomeric InsertOpen-40 to 248°F$20.931
A6851446144928PolyurethaneYellow840 In.Lbs.92 Shore AElastomeric InsertOpen-50 to 248°F$20.931
A6851446145038PolyurethaneYellow1680 In.Lbs.92 Shore AElastomeric InsertOpen-50 to 248°F$27.401
D6851447225938PolyurethaneGreen3585 In.Lbs.64 Shore DElastomeric InsertOpen-30 to 266°F$72.151
B6851446207138PolyurethaneRed2875 In.Lbs.98 Shore AElastomeric InsertOpen-40 to 248°F$27.401
B6851446207242PolyurethaneRed3980 In.Lbs.98 Shore AElastomeric InsertOpen-40 to 248°F$37.801
A6851446145142PolyurethaneYellow2345 In.Lbs.92 Shore AElastomeric InsertOpen-50 to 248°F$43.801
C6851446146542PolyurethaneBlue823 In.Lbs.80 Shore AElastomeric InsertOpen-40 to 248°F$37.801
C6851446146648PolyurethaneBlue-80 Shore AElastomeric InsertOpen-40 to 248°F$47.241
B6851446207348PolyurethaneRed4645 In.Lbs.98 Shore AElastomeric InsertOpen-40 to 248°F$47.241
A6851446145248PolyurethaneYellow2740 In.Lbs.92 Shore AElastomeric InsertOpen-50 to 248°F$47.241
D6851447226148PolyurethaneGreen5795 In.Lbs.64 Shore DElastomeric InsertOpen-30 to 266°F$113.381
A6851446145355PolyurethaneYellow3625 In.Lbs.92 Shore AElastomeric InsertOpen-50 to 248°F$66.471
D6851447226255PolyurethaneGreen7300 In.Lbs.64 Shore DElastomeric InsertOpen-30 to 266°F$145.511
B6851446207455PolyurethaneRed6060 In.Lbs.98 Shore AElastomeric InsertOpen-40 to 248°F$66.471
B6851446207565PolyurethaneRed8320 In.Lbs.95 Shore AElastomeric InsertOpen-40 to 248°F$109.931

GS Series Elastomeric Spiders

StyleModelSpider SizeMaterialColorNominal TorqueSpider TYPEStyleRadial StiffnessCoupling Bolt SizePrice (ex. VAT)Pkg. Qty.
A6851446724914UrethaneRed110.6 In.Lbs.98 Shore ASolid3452 In.Lbs.M3$17.951
B6851447224214UrethaneGreen141.6 In.Lbs.64 Shore DSolid4892 In.Lbs.M3$43.451
A6851446725119UrethaneRed150.5 In.Lbs.98 Shore ASolid11487 In.Lbs.M6$28.911
C6851446725224UrethaneYellow309.8 In.Lbs.92 Shore ASolid8458 In.Lbs.M6$34.021
A6851446725324UrethaneRed531 In.Lbs.98 Shore ASolid14630 In.Lbs.M6$34.021
B6851447224524UrethaneGreen663.8 In.Lbs.64 Shore DSolid21123 In.Lbs.M6$81.251
D6851446725428UrethaneYellow840.8 In.Lbs.92 Shore ASolid10173 In.Lbs.M8$37.801
A6851446725528UrethaneRed1416 In.Lbs.98 Shore ASolid18288 In.Lbs.M8$37.801
B6851447224628UrethaneGreen1770 In.Lbs.64 Shore DSolid24849 In.Lbs.M8$90.711
D6851446725638UrethaneYellow1681 In.Lbs.92 Shore ASolid12430 In.Lbs.M8$54.801
A6851446725738UrethaneRed2876 In.Lbs.98 Shore ASolid25146 In.Lbs.M8$60.801
B6851447224738UrethaneGreen3584 In.Lbs.64 Shore DSolid36999 In.Lbs.M8$132.271
B6851447224842UrethaneGreen4956 In.Lbs.64 Shore DSolid41548 In.Lbs.M8$181.421
C6851446725842UrethaneYellow2345 In.Lbs.92 Shore ASolid13887 In.Lbs.M8$81.581
A6851446726148UrethaneRed4646 In.Lbs.98 Shore ASolid33890 In.Lbs.M10$94.491
C6851446726048UrethaneYellow2743 In.Lbs.92 Shore ASolid14745 In.Lbs.M10$94.491
StyleModelHub StyleMaterialCoupling SizeCoupling Nominal TorqueStyleCoupling TYPEColorCubic inchesPrice (ex. VAT)Pkg. Qty.
A685144717061UrethaneLS090, LS095335 In.Lbs.WrapJaw In-ShearBlue1.8944 Cu.In.$66.001
A685144717081UrethaneLS1101090 In.Lbs.WrapJaw In-ShearBlue8.41 Cu.In.$102.381
A685144717091UrethaneLS1501810 In.Lbs.WrapJaw In-ShearBlue13.714 Cu.In.$132.621
A685144717141UrethaneCS28518760 In.Lbs.WrapJaw In-ShearBlue88.209 Cu.In.$798.001
A685144717102UrethaneLS1902920 In.Lbs.WrapJaw In-ShearBlue16.0825 Cu.In.$198.751

Snap Wrap, Flexible Spiders

Lovejoy snap wrap spider couplings provide shaft-to-shaft connection for power transmission and accommodating parallel & angular misalignment in industrial machinery, electric motors & compressors. These jaw couplings feature radially removable elastomeric cushions for ease-of-maintenance and no metal to metal contact for wear minimisation. SOX (NBR) rubber / urethane construction provides resistance against oil, sand, dirt, grease & moisture while ensuring fail-safe operation, even upon elastomeric cushion failure. These snap wrap spiders are capable of delivering torque up to 3510 inch-lb and the collar configuration of these snap wrap spiders can achieve the same speed as standard couplings since the collar is attached to one hub. Raptor Supplies, a trusted distributor of Lovejoy snap wrap spiders, also offers coupling spacers, jaw couplings, sleeve gear couplings, gaskets, hydraulic tanks and related accessories.

StyleModelCoupling SizeMaterialTorqueCoupling TYPEStyleColorAngular MisalignmentShore HardnessPrice (ex. VAT)Pkg. Qty.
A68514428284L190Urethane2592 In.Lbs.JawSolid RingBlue55D, L050 - L110, 90 - 95A, L150 - L233$162.531
A68514426093L225Urethane3510 In.Lbs.JawSolid RingBlue55D, L050 - L110, 90 - 95A, L150 - L235$169.651
A68514412413LT225Urethane3510 In.Lbs.JawSolidBlue55D, L050 - L110, 90 - 95A, L150 - L236$163.981
B68514424669SW090, SW095SOX (NBR) Rubber144 In.Lbs.JawSnap Wrap with RingBlack80A$46.441
B68514411071SW090, SW095SOX (NBR) Rubber144 In.Lbs.JawSnap Wrap without RingBlack80A$29.801
B68514424670SW099, SW100SOX (NBR) Rubber318 In.Lbs.JawSnap Wrap with RingBlack80A$61.561
B68514411495SW099, SW100SOX (NBR) Rubber318 In.Lbs.JawSnap Wrap without RingBlack80A$44.931
A68514441170SW099, SW100Urethane477 In.Lbs.JawSolid RingBlue55D, L050 - L110, 90 - 95A, L150 - L237$100.491
B68514411725SW110SOX (NBR) Rubber792 In.Lbs.JawSnap Wrap without RingBlack80A$53.241
B68514424671SW110SOX (NBR) Rubber792 In.Lbs.JawSnap Wrap with RingBlack80A$74.041
C68514424672SW150SOX (NBR) Rubber1240 In.Lbs.JawSnap Wrap with RingBlack80A$116.751
C68514412002SW150SOX (NBR) Rubber1240 In.Lbs.JawSnap Wrap without RingBlack80A$61.931
B68514424673SW190SOX (NBR) Rubber1728 In.Lbs.JawSnap Wrap with RingBlack80A$171.911
B68514412275SW190SOX (NBR) Rubber1728 In.Lbs.JawSnap Wrap without RingBlack80A$72.151

In-Shear Spider, 5 Inch Outside Dia., 8400 in-lbs Torque, LS225 Size

ModelItemPrice (ex. VAT)Pkg. Qty.

Spider, SOX NBR, Solid, AL150 Size, 80A Shore Hardness, Jaw Coupling Type

ModelItemPrice (ex. VAT)Pkg. Qty.


Dayton Spider Coupling Inserts

  • They are used with metal jaw couplings for uniform power transmission while maintaining structure and position.
  • These Hytrel spider inserts offer excellent oil & impact resistance and are capable of withstanding temperatures ranging from -60 to 70 degrees F.
  • Their assembly comprises two jaw hubs and a spider for transmitting higher torque and preventing misalignment (angular & parallel) between the connecting shafts.

Ruland Manufacturing Curved Jaw Coupling Spiders

  • They dampen shocks and accommodate misalignment (angular, parallel & axial) between coupling hubs.
  • Their polyurethane construction does not require lubrication and can hold up against dirt, sand, grease, oil & moisture.
  • These coupling inserts are used with coupling hubs and can handle torque ratings up to 8000 RPM.

Lovejoy Snap Wrap Spiders

  • These flexible snap wrap spiders permit close shaft separation up to the hub's maximum bore size.
  • They have urethane or SOX (NBR) rubber construction that ensures abrasion resistance and protection against dirt, grease & moisture.
  • Their snap wrap design allows easy removal of the units without moving the hubs.


  • They have bronze / Hytrel / SOX rubber / urethane / polyurethane construction for absorbing the torque and pressure generated by shafts with ease while minimising the wear of coupling hubs.
  • Selected models have a solid centre design for keeping the shafts of driven and driver equipment separate by a safe gap.

Working Mechanism

  • These spiders have multiple teeth like sections that fit in between two coupling hubs.
  • The coupling hubs are connected to two shafts that are misaligned (parallel / angular).
  • These spiders absorb the pressure generated by the driver shaft through one coupling and transfer the pressure to the coupling hub connected to the driven shaft.
  • Their design also prevents the coupling hubs from making metal to metal contact.

Standards and Approvals

  • ISO 9001:2008

Frequently Asked Questions

What is a spider in a coupling?

Lovejoy jaw couplings are composed of three parts, i.e. an elastomer insert known as a spider and two metallic hubs on both the sides. These three separate parts are pressed together with the help of a jaw from each hub, both of which are fitted alternately with the lobes of the spider to form a Lovejoy spider coupling.

How do you install a spider coupling?

  • Before installing the hubs on the shaft, slide the retaining collar onto either shaft.
  • Insert the key into the keyway. Make sure that the key fits snugly in the keyway, with minimal side to side movement.
  • Slide a hub on each of the shafts over the keys and align the face of the hub with the end of the shaft.
  • Using a calibrated torque wrench, tighten the set screws.
  • Check alignment using either straight edge method or a dial indicator taking measurements at four locations 90 degrees apart.
  • Wrap the spider (in case of jaw in-shear units) around the hubs and insert a leg of the spider into each space between the coupling jaws.
  • Align the pins on the side of the collar with the grooves in the spider.
  • Recheck set screws for tightness and recheck the axial & angular alignment for accuracy.
  • Remove any material and tooling away from the coupling and shafts. Install the appropriate coupling guard as per OSHA requirements.
For a clear Lovejoy spider coupling installation manual, check out the following link:

Why is a spider used in a coupling?

The spider determines the torque rating of a coupling. It also affects the coupling's response to temperature, vibration, misalignment, chemicals and high speed. Lovejoy coupling spiders provide ease of installation of the coupling.

What is the significance of the colours of Lovejoy spiders?

  • Black - Lovejoy spiders with 80 Shore A hardness ensuring excellent damping properties.
  • Yellow - Spiders with 92 Shore A hardness used in hydraulic applications.
  • Red - Lovejoy coupling spiders with 95 / 98 Shore A hardness suitable in high torque applications.
  • Green - Lovejoy spiders with 64 Shore D hardness for humid environments.
  • Blue - Lovejoy spiders with 92 & 95 Shore A hardness for chemical resistance and high torque capabilities.
  • Tan / Bronze - Lovejoy coupling spiders with 55 Shore D hardness to ensure excellent chemical resistance.

What is the difference between open center & solid center Lovejoy spider designs?

The open center design of Lovejoy coupling spiders is suitable in close BE situations (distance between ends of driven and driving shafts), where units must be positioned as closely together as possible. However, this design has no full-diameter support, as the spider's legs are joined only by a thin segment of material. It has speed limitations up to 1750 rpm for NBR and 3600 rpm for Urethane / Hytrel.
The solid center design of Lovejoy spiders is suitable for general power transmission applications where the BE dimension will remain fairly constant and will be capable of affording a suitable gap.

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