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    27 Products

    Set Screw Flexible Shaft Couplings

    Image of System. Hubs, Split Spider, and Retaining Ring Shown Assembled. Front orientation. Contains Annotated. Flexible Shaft Couplings. Set Screw Flexible Shaft Couplings.
    Image of System. (Each Component Sold Separately). Front orientation. Contains Annotated. Flexible Shaft Couplings. Set Screw Flexible Shaft Couplings.

    Hubs, Split Spider, and

    Retaining Ring Shown

    Assembled

    (Each Component Sold

    Separately)

    Image of System. Hubs and Spider Shown Assembled. Front orientation. Contains Annotated. Flexible Shaft Couplings. Set Screw Flexible Shaft Couplings.
    Image of System. (Each Component Sold Separately). Front orientation. Exploded view. Contains Annotated. Flexible Shaft Couplings. Set Screw Flexible Shaft Couplings.

    Hubs and Spider Shown

    Assembled

    (Each Component Sold

    Separately)

    Each hub includes a set screw (unless noted), which bites into your shaft to hold the coupling in place. Also known as Lovejoy® couplings, these three-piece couplings have a spider-shaped cushion between two hubs to reduce shock and handle minor shaft misalignment.
    A complete coupling consists of two hubs and one spider, or two hubs, one split spider, and one retaining ring (all components sold separately). Split spiders are easier to install and replace than standard spiders because there’s no need for tools or removing your hubs. Twist-lock them in place using a retaining ring.
    Buna-N—Buna-N spiders provide good vibration damping and chemical resistance.
    Hytrel—Hytrel spiders provide fair vibration damping and excellent chemical resistance.
    Hubs
    Buna-N Spiders
    Hytrel Spiders
    Misalignment Capability
    Misalignment Capability
    Overall
    Lg.
    OD
    For Shaft
    Type
    For Rotary Motion
    For Shaft
    Dia.
    Each
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Temp. Range,
    ° F
    Spider
    Material
    Each
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Temp. Range,
    ° F
    Spider
    Material
    Each
     
    Iron Hubs
    5 11/32"5"KeyedForward/Reverse, Start/Stop2 3/16"6408K2200000004,2002,3400.015"1°-40 to 212Buna-N
    		6408K620000004,2006,2250.015"0.5°-55 to 245Hytrel6408K640000000
     

    Two-Piece Rigid Shaft Coupling Bridges

    When your shafts are not close enough to use standard couplings, these have the length to bridge the gap. Install them anywhere on a shaft without removing components or having access to the ends of the shaft. Tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.
    Cast Iron
    Image of Product. Front orientation. Rigid Shaft Couplings. Two-Piece Rigid Shaft Coupling Bridges .
    For Shaft
    Dia.
    Overall
    Lg.
    OD
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    For Rotary Motion
    Each
    For Keyed Shafts
    2 3/16"9 5/16"5 3/4"3,18012,000Forward/Reverse, Start/Stop, Continuous6417K150000000
     

    Flange-Mount Shaft Collars

    Image of Product. Front orientation. Shaft Collars. Flange-Mount Shaft Collars.
    Use the tapped and unthreaded holes on the flange to mount components as needed. To install, slide these collars from one end of your shaft and tighten the clamping screws. The collars grip firmly and evenly without marring the shaft, so you can reposition or remove them later. Collars with keyways have a standard ANSI keyway to lock in place shafts, keys, and key stock.
    Black-Oxide Carbon Steel—Dark and matted for a finished look, but with minimal corrosion resistance. Best for dry environments.
    Flange
    Keyway
    Clamping
    Screw
    Mounting
    Holes
    Unthreaded
    Mounting Holes
    For Shaft
    Dia.
    OD
    Wd.
    OD
    Thk.
    Wd.
    Dp.
    For Shaft
    Type
    Type
    No.
    Included
    Mounting Fasteners
    Included
    Thread
    Size
    No.
    of
    Dia.
    No.
    of
    Each
    Black-Oxide Carbon Steel
    2 3/16"3 1/2"1 1/4"4 31/32"1/2"1/2"7/32"KeyedSocket Head2No5/16"-18
    		35/16"39684T350000000
     

    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.
    Inch
    Adapter Sleeve
    Trade Number
    For Shaft
    Dia.
    ID
    Wd.
    Includes
    Each
    Low-Carbon Steel
    SNW-132 3/16"2 3/16"2.09"Lock Nut, Lock Washer4449N34000000
     

    Oversized Two-Piece Shaft Collars

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

    For Round Shafts

    Wider and thicker with larger clamping screws, these deliver a more powerful hold than standard two-piece collars. Attach them anywhere along a shaft when other components are already installed or you can't access the ends. They grip 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.
    Clamping
    Screw
    For Round Shafts
    For Shaft
    Dia.
    OD
    Wd.
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    2 3/16"3 3/4"3/4"Socket Head28386K22000000
     

    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.
    Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.
    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.
    Set
    Screw
    For Shaft
    Dia.
    OD
    Wd.
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    2 3/16"3 1/4"15/16"Hex Socket19414T39000000
     
    Zinc-Plated Carbon Steel
    2 3/16"3 1/4"15/16"Hex Socket16432K5300000
     
    303 Stainless Steel
    2 3/16"3 1/4"15/16"Hex Socket16462K53000000
     
    Aluminum
    2 3/16"3 1/4"15/16"Hex Socket19946K5200000
     

    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.
    Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.
    Chrome-Plated Carbon Steel—Resist moisture and mild cleaning solutions better than zinc-plated collars.
    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.
    For Round Shafts
    For Keyed Shafts
    Clamping
    Screw
    Keyway
    For Shaft
    Dia.
    OD
    Wd.
    Type
    No.
    Included
    Each
    Wd.
    Dp.
    Each
    Black-Oxide Carbon Steel
    2 3/16"3 1/4"3/4"Socket Head26436K690000001/2"1/4"3357K19000000
     
    Zinc-Plated Carbon Steel
    2 3/16"3 1/4"3/4"Socket Head22380K4700000—————0
     
    Chrome-Plated Carbon Steel
    2 3/16"3 1/4"3/4"Socket Head23370K8800000—————0
     
    303 Stainless Steel
    2 3/16"3 1/4"3/4"Socket Head26436K106000001/2"1/4"3329K19000000
     
    316 Stainless Steel
    2 3/16"3 1/4"3/4"Socket Head29633T41000000—————0
     
    Aluminum
    2 3/16"3 1/4"3/4"Socket Head26436K15800000—————0
     

    Oversized Shaft Collars

    Image of Product. Front orientation. Shaft Collars. Oversized Shaft Collars.
    Wider and thicker with a larger clamping screw, these shaft collars deliver a stronger grip than standard collars. Slide them from one end of your shaft and tighten the screw. They clamp 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.
    Clamping
    Screw
    For Shaft
    Dia.
    OD
    Wd.
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    2 3/16"3 3/4"3/4"Socket Head19951K22000000
     

    Quick-Disconnect (QD) Bushings

    Image of Product. Front orientation. Pulley and Sprocket Bushings. Quick-Disconnect (QD) Bushings, Clamp-On Shaft Mount.
    Image of Attribute. Side1 orientation. Contains Annotated. Quick-Disconnect (QD) Bushings.

    Clamp-On Shaft Mount

    The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing trade number. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.
    Keyway
    Overall
    Wd.
    Wd.
    Dp.
    Fastener Tightening
    Torque, in·lbf
    Material
    Includes
    For Shaft
    Dia.
    Each
    Clamp-On Shaft Mount
     
    Bushing Trade Number SK
    1 15/16"1/2"1/8"180Sintered SteelClamping Screws, Machine Key2 3/16"6086K858000000
     

    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.
    Set
    Screw
    Clamping
    Screw
    Each
    For Shaft
    Dia.
    OD
    Wd.
    Type
    No.
    Included
    Type
    No.
    Included
    1-24
    25-Up
    Black-Oxide Carbon Steel
    2 3/16"3 1/4"3/4"Hex Socket1Socket Head21069N15000000000000
     

    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.
    Zinc-Plated Carbon Steel—A step up from plain carbon steel collars, these withstand occasional exposure to moisture.
    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 Shaft
    Dia.
    OD
    Wd.
    Type
    No.
    Included
    Each
    Black-Oxide Carbon Steel
    2 3/16"3 1/4"3/4"Socket Head16435K89000000
     
    Zinc-Plated Carbon Steel
    2 3/16"3 1/4"3/4"Socket Head19961K4700000
     
    303 Stainless Steel
    2 3/16"3 1/4"3/4"Socket Head16435K9100000
     
    316 Stainless Steel
    2 3/16"3 1/4"3/4"Socket Head19421T3700000
     
    Aluminum
    2 3/16"3 1/4"3/4"Socket Head16157K4700000
     
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