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    81 Products

    Spider Couplings

    Image of System. Front orientation. Contains Annotated. Flexible Shaft Couplings. Spider Couplings.
    With two hubs gripping a rubbery spider in the center, these couplings damp vibration and transfer torque while flexing to handle misaligned shafts. The metal hubs never touch each other, so there's no need for lubrication. Also known as Lovejoy® couplings. For a complete coupling, select two hubs and one spider or two hubs, one split spider, and one retaining ring. Choose components with the same trade size to ensure they'll fit together.
    Hubs
    Image of Product. Front orientation. Flexible Shaft Couplings. Spider Couplings, Hubs.
    The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.
    Keyed—Mount onto shafts with a matching keyway.
    Iron—Best for dry environments, since moisture will cause these hubs to rust.
    Steel—Best for dry environments, since moisture will cause these hubs to rust.
    303 Stainless Steel—These corrosion-resistant hubs withstand mild cleaning solutions.
    Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.
    OD
    Shaft Coupling
    Trade Size
    Overall
    Lg.
    Shaft Mount
    Type
    For Shaft
    Diameter
    Each
    Keyed
     
    Iron
    1 3/4"L0752 1/8"Set Screw
    22 mm6408K13000000
    2 7/64"L0902 5/32"Set Screw
    22 mm6408K1400000
    2 35/64"L0992 27/32"Set Screw
    22 mm6408K1600000
     
    Steel
    54 mmL09564 mmSet Screw
    22 mm6133N1600000
    65 mmL10089 mmSet Screw
    22 mm6133N1800000
    85 mmL110108 mmSet Screw
    22 mm6133N1900000
     
    303 Stainless Steel
    45 mmL07554 mmSet Screw
    22 mm6953N111000000
    54 mmL09564 mmSet Screw
    22 mm6953N181000000
     
    Spiders
    Image of Product. Front orientation. Flexible Shaft Couplings. Spider Couplings, Spiders.
    A flexible center fits between hubs to enable torque transfer and damp vibration.
    Buna-N—Best choice for vibration damping and shock absorption with the lowest stiffness and good tear resistance.
    Polyurethane Rubber—Superior tear resistance to Buna-N and Hytrel and a good balance of stiffness and vibration damping.
    Hytrel—Most direct torque transfer with the highest stiffness and least vibration damping.
    Metal-Impregnated Buna-N—Best choice for vibration damping and shock absorption with the lowest stiffness and good tear resistance. The rubber contains metal, so it will trigger a metal detector if a piece contaminates your batch.
    Metal-Impregnated Hytrel—Most direct torque transfer with the highest stiffness and least vibration damping. The Hytrel contains metal, so it will trigger a metal detector if a piece contaminates your batch.
    Misalignment
    Capability
    For Hub OD
    Shaft Coupling
    Trade Size
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Each
    Buna-N
    1 3/4", 45 mmL07511,000900.015"6408K74000000
    2 7/64", 54 mmL090, L0959,0001400.015"6408K7500000
    2 17/32", 2 35/64", 65 mmL099, L1007,0003150.015"6408K7700000
    3 21/64", 85 mmL1105,0007900.015"6408K7900000
     
    Polyurethane Rubber
    1 3/4"L0753,6001350.015"2410K1100000
    2 7/64"L090, L0953,6002100.015"2410K1300000
    2 17/32", 2 35/64"L099, L1003,6004750.015"2410K1500000
     
    Hytrel
    1 3/4", 2 7/64", 45 mmL075, L0903,6002250.015"0.5°6408K9400000
    2 7/64", 54 mmL090, L0953,6004000.015"0.5°6408K9500000
    2 17/32", 2 35/64", 65 mmL099, L1003,6007900.015"0.5°6408K96000000
    3 21/64", 85 mmL1103,6002,2650.015"0.5°6408K97000000
     
    Metal-Impregnated Buna-N
    1 3/4", 45 mmL0753,600800.015"3507N3900000
    2 1/8", 54 mmL090, L0953,6001850.015"3507N400000
     
    Metal-Impregnated Hytrel
    1 3/4", 45 mmL0753,6002400.015"3507N4400000
    2 1/8", 54 mmL090, L0953,6005650.015"3507N45000000
     
    Split Spiders
    Image of Product. Front orientation. Flexible Shaft Couplings. Spider Couplings, Split Spiders.
    Unlike standard spiders, you can install these without using tools, removing hubs, or realigning shafts. Hold them in place with a retaining ring.
    Polyurethane Rubber—Provide fair vibration damping and tear resistance.
    Misalignment
    Capability
    For Hub
    OD
    Shaft Coupling
    Trade Size
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Temp. Range,
    ° F
    Each
    Polyurethane Rubber
    2 7/64"L090, L0959,2006700.03"-30 to 2002393K33000000
    2 35/64"L099, L1007,7001,1100.03"-30 to 2002393K34000000
     
    Retaining Rings
    Image of Product. Front orientation. Flexible Shaft Couplings. Spider Couplings, Retaining Rings.
    Press the pins on these rings into the grooves on a split spider. Then, twist to lock the spider in place and transmit torque between shafts.
    347 Stainless Steel—Provide good corrosion resistance.
    Shaft Coupling
    Trade Size
    For Hub
    OD
    Each
    347 Stainless Steel
    L090, L0952 7/64"2393K23000000
    L099, L1002 35/64"2393K2400000
     

    High-Torque Spider Couplings

    Image of System. Front orientation. Contains Annotated. Flexible Shaft Couplings. High-Torque Spider Couplings.
    With a thick split spider in the center, these transmit higher torque than standard split spider couplings. Connect them to pumps, mixers, and other equipment that generates heavy torque. The spider also prevents metal-to-metal contact between the hubs, so there's no need for lubrication. For a complete coupling, select two hubs, one split spider, and one split spider cover. Choose components with the same trade size to ensure they'll fit together.
    Hubs
    Image of Product. Front orientation. Flexible Shaft Couplings. High-Torque Spider Couplings, Hubs.
    The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.
    Steel—Best for dry environments, since moisture will cause these hubs to rust.
    303 Stainless Steel—These corrosion-resistant hubs withstand mild cleaning solutions.
    Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.
    OD
    Shaft Coupling
    Trade Size
    Overall
    Lg.
    Shaft Mount
    Type
    For Shaft
    Diameter
    Each
    Keyed
     
    Steel
    2 5/16"QF153 39/64"Set Screw
    22 mm3565N2000000
     
    303 Stainless Steel
    2"QF52 13/16"Set Screw
    22 mm3565N100000
     
    Split Spiders
    Image of Product. Front orientation. Flexible Shaft Couplings. High-Torque Spider Couplings, Split Spiders.
    Unlike standard spiders, you can install these without using tools, removing hubs, or realigning shafts. Hold them in place with a retaining ring.
    Urethane Rubber—Tough, with plastic-like tear resistance. Higher-durometer spiders are more rigid for more precise positioning, but they absorb less vibration.
    Misalignment
    Capability
    For Hub
    OD
    Shaft Coupling
    Trade Size
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Axial
    Temp. Range,
    ° F
    Each
    Durometer 48D (Medium Soft) Urethane Rubber
    2"QF512,0003750.02"0.078"-60 to 2123565N41000000
    2 5/16"QF159,0001,0550.039"0.116"-60 to 2123565N4400000
     
    Durometer 60D (Medium) Urethane Rubber
    2"QF512,0008150.02"0.078"-60 to 2123565N4300000
    2"QF512,0008150.02"0.078"-60 to 3503565N4200000
    2 5/16"QF159,0002,0750.039"0.116"-60 to 2123565N4600000
    2 5/16"QF159,0002,0750.039"0.116"-60 to 3503565N45000000
     
    Split Spider Covers
    Image of Product. Front orientation. Flexible Shaft Couplings. High-Torque Spider Couplings, Split Spider Covers.
    Hold split spiders in place to secure the two hubs.
    Steel—Best for dry environments, since moisture will cause these covers to rust.
    303 Stainless Steel—These corrosion-resistant hubs withstand mild cleaning solutions.
    Shaft Coupling
    Trade Size
    For Hub
    OD
    Each
    Steel
    QF152 5/16"3565N62000000
     
    303 Stainless Steel
    QF52"3565N6100000
     

    Precision Spider Couplings

    Image of System. Front orientation. Flexible Shaft Couplings. Precision Spider Couplings.
    Position shafts and handle misalignment on precision motors, pumps, and other equipment that requires highly controlled movements. These couplings have a hard, rubber spider to fully transfer torque from one shaft to the other (zero backlash). They're also known as precision jaw couplings. Choose components with the same trade size to ensure they'll fit together.
    Hubs
    Image of Product. Front orientation. Flexible Shaft Couplings. Precision Spider Couplings, Hubs.
    The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.
    Aluminum—Lightweight and corrosion resistant.
    Clamp-On Shaft Mount—Grip shafts evenly without marring them and hold tighter than set screws. Tighten the clamping screws to secure.
    OD,
    mm
    Shaft Coupling
    Trade Size
    Overall
    Lg., mm
    Shaft Mount
    Type
    For Shaft
    Diameter
    Each
    Round
     
    Aluminum
    50.832/5161Clamp On
    22 mm9845T55000000
    57.236/5780Clamp On
    22 mm9845T56000000
     
    Keyed
     
    Aluminum
    50.832/5161Clamp On
    22 mm9845T61000000
    57.236/5780Clamp On
    22 mm9845T62000000
     
    Spiders
    Image of Product. Front orientation. Flexible Shaft Couplings. Precision Spider Couplings, Spiders.
    A flexible center fits between hubs to enable torque transfer and damp vibration.
    Polyurethane Rubber—Provide a balance of stiffness and moderate vibration damping. Higher-durometer spiders are more rigid for more precise positioning, but they absorb less vibration.
    Misalignment
    Capability
    For Hub OD
    Shaft Coupling
    Trade Size
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Each
    Durometer 92A (Extra Hard) Polyurethane Rubber
    2", 50 mm, 50.8 mm32/518,0004400.006"0.9°9845T25000000
    2 1/4", 57 mm, 57.2 mm36/578,0005700.005"0.9°9845T2700000
     
    Durometer 98A (Extra Hard) Polyurethane Rubber
    2", 50 mm, 50.8 mm32/518,0005500.005"0.8°9845T2400000
    2 1/4", 57 mm, 57.2 mm36/578,0008200.004"0.8°9845T2600000
     

    Sleeve Couplings

    Image of System. Front orientation. Contains Annotated. Flexible Shaft Couplings. Sleeve Couplings.
    Transmit high torque with a sleeve that locks into the teeth of the hubs. The sleeve is strong and flexible enough to compensate for some misalignment, and it's lightweight to move with less energy. For a complete coupling, select two hubs and one sleeve. Choose components of the same trade size to ensure they'll fit together.
    Hubs
    Image of Product. Front orientation. Flexible Shaft Couplings. Sleeve Couplings, Hubs.
    The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.
    Steel—Best for dry environments, since moisture will cause these hubs to rust.
    Keyed—Mount onto shafts with a matching keyway.
    Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.
    OD,
    mm
    Shaft Coupling
    Trade Size
    Overall
    Lg., mm
    For Shaft
    Type
    Shaft Mount
    Type
    For Shaft
    Diameter
    Each
     
    Steel
    44.7GDX M02452.6KeyedSet Screw
    22 mm6247K53000000
    68.6GDX M03880KeyedSet Screw
    22 mm6247K56900000
     
    Sleeves
    Image of Product. Front orientation. Flexible Shaft Couplings. Sleeve Couplings, Sleeves.
    Install these cylindrical sleeves over the hubs.
    Nylon—Strong and durable but prone to swelling when exposed to moisture.
    Misalignment
    Capability
    For Hub
    OD, mm
    Shaft Coupling
    Trade Size
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Axial
    Each
    Nylon
    44.7GDX M02410,6005300.016"0.04"6247K83000000
    68.6GDX M0386,7002,1200.016"0.04"6247K8500000
     

    Servomotor Precision Disc Couplings

    Image of Product. Front orientation. Flexible Shaft Couplings. Servomotor Precision Disc Couplings.
    With rigid, bolted-on discs, these couplings withstand high torque from starts, stops, and reversals. Use them when accurate, repeatable positioning is a must. The double-disc design accommodates misalignment and smoothly transmits torque without any loss of force (zero backlash).
    Aluminum with 304 Stainless Steel Disc—Lightweight hubs with corrosion-resistant discs.
    Clamp-On Shaft Mount—Grip shafts evenly without marring them and hold tighter than set screws. Tighten the clamping screws to secure.
    Misalignment
    Capability
    For Shaft
    Diameter
    OD
    Overall
    Lg.
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Axial
    For Shaft
    Type
    Shaft Mount
    Type
    Each
     
    Aluminum with 304 Stainless Steel Disc
    3/8" × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K6250000000
    1/2" × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K636000000
    5/8" × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K647000000
    3/4" × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K658000000
    1" × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K668000000
    16 mm × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K677000000
    17 mm × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K685000000
    18 mm × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K692000000
    19 mm × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K697000000
    20 mm × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K602000000
    22 mm × 22 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K605000000
    22 mm × 24 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K606000000
    22 mm × 25 mm2 7/32"2 23/64"10,0002200.011"0.031"RoundClamp On
    2764K607000000
     

    Servomotor Precision Bonded Couplings

    Image of Product. Front orientation. Flexible Shaft Couplings. Servomotor Precision Bonded Couplings.
    With a bonded rubber center, these couplings damp vibration and accommodate misalignment on servomotors. The center and the lightweight aluminum hubs transfer torque fully (zero backlash) between shafts that start and stop frequently or accelerate at high speeds. They're often used on packaging machines, press brakes, and machinery for semiconductor production.
    Aluminum with Buna-N Center—Durable yet flexible, the molded rubber center withstands tearing force from misaligned shafts while absorbing vibration.
    Clamp-On Shaft Mount—Grip shafts evenly without marring them and hold tighter than set screws. Tighten the clamping screws to secure.
    Misalignment
    Capability
    For Shaft
    Diameter
    OD
    Overall
    Lg.
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Axial
    For Shaft
    Type
    Shaft Mount
    Type
    Each
     
    Aluminum with Buna-N Center
    20 mm × 22 mm2 43/64"2 61/64"9,0005750.008"1.5°0.012"RoundClamp On
    6853N1560000000
    22 mm × 25 mm2 43/64"2 61/64"9,0005750.008"1.5°0.012"RoundClamp On
    6853N157000000
     

    Two-Piece Shaft Collars

    Image of Product. Front orientation. Shaft Collars. Two Piece, For Round Shafts.

    For Round Shafts

    Attach these collars anywhere along your shaft, which helps when other components are already installed or you can't access the end. They clamp firmly and evenly without marring the shaft, so you can reposition or remove collars later.
    Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
    303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.
    316 Stainless Steel—More corrosion resistant than 303 stainless steel collars. These collars withstand salt water and harsh chemicals, such as bleach, chlorine, and phosphoric acid.
    Aluminum—One-third the weight of steel and corrosion resistant.
    Clamping
    Screw
    For Round Shafts
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    224215Socket Head26063K48000000
     
    303 Stainless Steel
    224215Socket Head29731N1400000
     
    316 Stainless Steel
    224215Socket Head29652T4100000
     
    Aluminum
    224215Socket Head27731N1300000
     

    Shaft Collars

    Image of Product. Front orientation. Shaft Collars.
    Slide these collars from one end of your shaft and tighten the clamping screw. They grip firmly and evenly without marring the shaft, so you can reposition or remove them later.
    Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
    303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.
    Aluminum—One-third the weight of steel and corrosion resistant.
    Clamping
    Screw
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    224215Socket Head157445K419000000
     
    303 Stainless Steel
    224215Socket Head19616T41900000
     
    Aluminum
    224215Socket Head19506T31900000
     

    Set Screw Shaft Collars

    Image of Product. Front orientation. Shaft Collars. Set Screw Shaft Collars.
    Slide these traditional collars from one end of the shaft and tighten the set screw. They dig into the shaft for a secure hold, but one that leaves a gouge. For maximum holding power, make sure the set screw is harder than the shaft.
    Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
    303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.
    Set
    Screw
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    223814Hex Socket157485K7600000
     
    303 Stainless Steel
    223814Hex Socket157485K3800000
     

    Shaft Collars with Lever

    Image of Product. Front orientation. Shaft Collars. Shaft Collars with Lever.
    Ideal for frequent setup changes in tight spaces, these collars tighten with a lever instead of a screwdriver. Slide them from one end of your shaft and turn the lever like a ratchet to secure. To reposition or remove collars later, use the lever to loosen the screw and release the hold.
    Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
    303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.
    Black Anodized Aluminum—One-third the weight of steel and more corrosion resistant than unfinished aluminum.
    Lever,
    mm
    Clamping
    Screw
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Ht.
    Lg.
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    22421538.545Socket Head13466N34000000
     
    303 Stainless Steel
    22421538.545Socket Head13466N700000
     
    Black Anodized Aluminum
    22421538.545Socket Head13466N10600000
     

    Two-Piece Shaft Collars with Lever

    Image of Product. Front orientation. Shaft Collars. Two-Piece Shaft Collars with Lever.
    Skip the screwdriver—tighten these collars by turning the lever like a ratchet instead. They're ideal for packing, printing, label-feeding, and other equipment requiring frequent setup changes in tight spaces. Attach them anywhere along your shaft, which helps when other components are already installed or you can't access the ends. To reposition or remove collars later, use the lever to loosen the screw and release the hold.
    Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
    303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.
    Black Anodized Aluminum—One-third the weight of steel and more corrosion resistant than unfinished aluminum.
    Lever,
    mm
    Clamping
    Screw
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Ht.
    Lg.
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    22421538.545Socket Head23553N143000000
     
    303 Stainless Steel
    22421538.545Socket Head23553N24300000
     
    Black Anodized Aluminum
    22421538.545Socket Head23553N34300000
     

    Plastic Shaft Collars

    Image of Product. Front orientation. Shaft Collars. Plastic Shaft Collars.
    Lightweight alternatives to metal collars for weight-sensitive applications. Slide these collars from one end of your shaft and tighten the clamping screw. They grip firmly and evenly without marring the shaft, so you can reposition or remove them later.
    Acetal—Resist swelling when exposed to moisture.
    Clamping
    Screw
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Type
    No.
    Included
    Each
    Acetal
    224215Socket Head13761N111000000
     

    Plastic Two-Piece Shaft Collars

    Image of Product. Front orientation. Shaft Collars. Plastic Two-Piece Shaft Collars.
    Lightweight alternatives to metal two-piece collars for weight-sensitive applications. Attach these collars anywhere along a shaft when other components are already installed or you can't access the ends. They clamp firmly and evenly without marring the shaft, so you can reposition or remove them later.
    Acetal—Resist swelling when exposed to moisture.
    Clamping
    Screw
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Type
    No.
    Included
    Each
    Acetal
    224215Socket Head23585N22000000
     
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