McMaster-Carr logo
    Filter by
    System of Measurement
    Shaft Type
    Overall Length
    Attribute Image
    Keyway Width
    Attribute Image
    For Shaft Misalignment Type
    Shaft Mount Type
    Industrial Info Compare
    Keyway Depth
    Attribute Image
    Shaft Coupling Flexibility
    Flexible Shaft Coupling Type
    Number of Set Screws Included
    DFARS Specialty Metals
    Maximum Rotation Speed
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Compare
    Export Control Classification Number (ECCN)
    Industrial Info Compare
    Flexible Shaft Coupling Trade Size
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    21 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.
    Steel—Best for dry environments, since moisture will cause these hubs to rust.
    Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.
    OD,
    mm
    Shaft Coupling
    Trade Size
    Overall
    Lg., mm
    Shaft Mount
    Type
    Choose a
    Shaft Dia.
    Each
    Keyed
     
    Steel
    127L225137Set Screw
    60 mm6133N230000000
     
    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—Highly tear resistant and the best choice to absorb vibration and shock.
    Hytrel—Stiffer than Buna-N, these spiders transmit torque from one shaft to the other almost fully but offer minimal vibration damping.
    Misalignment
    Capability
    For Hub
    OD
    Shaft Coupling
    Trade Size
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Each
    Buna-N
    5", 127 mmL2254,2002,3400.015"6408K62000000
     
    Hytrel
    5", 127 mmL2254,2006,2250.015"0.5°6408K64000000
     

    High-Axial-Misalignment Sleeve Couplings

    Image of System. Front orientation. Contains Annotated. Flexible Shaft Couplings. High-Axial-Misalignment Sleeve Couplings.
    Flex to handle axial misalignment with the gear-shaped sleeve while transmitting high torque at high speeds. The flexible sleeve between the hubs reduces vibration, absorbs shock, and prevents metal-to-metal contact, so there's no need for lubrication. For a complete coupling, select two hubs and one sleeve. Choose components with the same trade size to ensure they'll fit together.
    Hubs
    Image of Product. Front orientation. Flexible Shaft Couplings. High-Axial-Misalignment Sleeve Couplings, Hubs.
    The metal body mounts onto shafts to transmit torque from one shaft to the other through the flexible center.
    Cast Iron—Strong and rigid to withstand heavy loads. Keep these hubs dry to prevent rust.
    Set-Screw Shaft Mount—Screws dig into your shaft for a secure hold.
    OD
    Shaft Coupling
    Trade Size
    Overall
    Lg.
    Shaft Mount
    Type
    Choose a
    Shaft Dia.
    Each
    Cast Iron
    8 5/8"11S7 1/8"Set Screw
    60 mm6507K90000000
     
    Sleeves
    Image of Product. Front orientation. Flexible Shaft Couplings. High-Axial-Misalignment Sleeve Couplings, Sleeves.
    Install these flexible, cylindrical sleeves between the hubs.
    EPDM—Flexible rubber that damps vibration.
    Misalignment
    Capability
    For Hub
    OD
    Shaft Coupling
    Trade Size
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Axial
    Each
    EPDM
    8 5/8"11S3,6004,5300.032"0.125"6507K780000000
     

    Bearing Adapter Sleeves

    Image of Product. Front orientation. Bearing Adapter Sleeves.
    Make up for imperfections and gaps between your bearing and shaft for a tight fit. These bearing adapter sleeves are the most common way to mount a bearing with a tapered bore onto a cylindrical seat. They work with both straight and stepped shafts. Secure using the included lock nut.
    Metric
    Adapter Sleeve
    Trade Number
    For Shaft
    Dia., mm
    ID,
    mm
    Wd.,
    mm
    Includes
    Each
    Low-Carbon Steel
    H 2313606065Lock Nut, Lock Washer7835T1640000000
     

    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
    608919Socket Head157445K32000000
     
    303 Stainless Steel
    608919Socket Head19616T32000000
     
    Aluminum
    608919Socket Head19506T2200000
     

    Two-Piece Shaft Collars

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

    For Round Shafts

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

    For Keyed 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.
    Chrome-Plated Carbon Steel—Resist moisture and mild cleaning solutions better than zinc-plated collars.
    Carbon Steel—Strong and easy to machine. Use in dry environments, since moisture will cause steel to rust.
    303 Stainless Steel—Withstand moisture and mild cleaning solutions, such as acetone and ammonia. These are easier to machine than other stainless steel collars.
    For Round Shafts
    For Keyed Shafts
    Clamping
    Screw
    Keyway,
    mm
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Type
    No.
    Included
    Each
    Wd.
    Dp.
    Each
    Black-Oxide Carbon Steel
    608819Socket Head26063K35000000184.43390N280000000
     
    Chrome-Plated Carbon Steel
    608819Socket Head23388N3300000———0
     
    Carbon Steel
    608819Socket Head29739T52700000———0
     
    303 Stainless Steel
    608819Socket Head23369K32000000———0
     

    Set Screw Two-Piece Shaft Collars

    Image of Product. Front orientation. Shaft Collars. Set Screw Two-Piece Shaft Collars.
    Attach these traditional collars anywhere along a shaft when other components are already installed or you can't access the ends. Their set screw digs into the shaft for a tight, permanent 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
    Clamping
    Screw
    Each
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Type
    No.
    Included
    Type
    No.
    Included
    1-24
    25-Up
    Black-Oxide Carbon Steel
    608819Hex Socket1Socket Head21069N54000000000000
     
    303 Stainless Steel
    608819Hex Socket1Socket Head21069N640000000000
     

    Two-Piece Shaft Collars with Wrench Flats

    Image of Product. Front orientation. Contains Annotated. Shaft Collars. Two-Piece Shaft Collars with Wrench Flats.
    When adjusting or troubleshooting your drive shaft, turn these collars with a wrench to avoid marring or gouging the surface. To install, snap the two pieces together anywhere along the shaft, which helps when other components are attached or you can't access the ends.
    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.
    Clamping
    Screw
    For Shaft
    Dia., mm
    OD,
    mm
    Wd.,
    mm
    Flat-to-Flat
    Ht., mm
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    60881983Socket Head29746T227000000
     
    303 Stainless Steel
    60881983Socket Head25876T327000000
     

    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.
    Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.
    Blue Passivated Zinc-Plated Carbon Steel—Withstand moisture and mild chemicals better than standard zinc-plated-steel collars. The blue passivated finish makes it easy to identify metric collars at a glance.
    Carbon Steel—Strong and easy to machine. Use in dry environments, since moisture will cause steel to rust.
    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
    Blue Passivated Zinc-Plated Carbon Steel
    609020Hex Socket16057N47000000
     
    Carbon Steel
    609020Hex Socket16056N4700000
     
    303 Stainless Steel
    609020Hex Socket26058N47000000
     
    back to top