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    181 Products

    Machinable-Bore Clamping Rigid Shaft Couplings

    When one of your shafts is undersized from wear, oversized from coatings, or uncommonly sized, machine one end of these couplings to fit. They clamp around your shafts for a secure hold that won’t cause damage. But, you’ll need access to the end of each shaft to slide them into place. Since they’re rigid, they prevent movement between the shafts, making them good for high-torque applications. This also means your shafts must align to connect.
    Steel
    Image of Product. Front orientation. Rigid Shaft Couplings. Machinable-Bore Clamping Rigid Shaft Couplings.
    Image of Specification. For Keyed Shafts. Back orientation. Contains Inset, Border. For Keyed Shafts. Machinable-Bore Clamping Rigid Shaft Couplings.
    Image of Specification. For Round Shafts. Back orientation. Contains Inset, Border. For Round Shafts. Machinable-Bore Clamping Rigid Shaft Couplings.

    For Keyed

    Shafts

    For Round

    Shafts

    Steel couplings resist corrosion in dry environments.
    For Keyed Shafts—Couplings for keyed shafts grip the shaft’s key to eliminate slipping. They handle higher torque than couplings for round shafts.
    For Shaft Dia.
    Overall
    Lg.
    OD
    Max. Rotation
    Speed
    Max. Torque,
    in·lbf
    For Rotary Motion
    Each
    For Keyed Shafts
    1/2" × 0.235" to 0.500"1 7/8"1 1/4"Not Rated380Forward/Reverse, Start/Stop, Continuous3084K65000000
    5/8" × 0.235" to 0.625"2 1/4"1 1/2"Not Rated785Forward/Reverse, Start/Stop, Continuous3084K6600000
    3/4" × 0.235" to 0.750"2 5/8"1 3/4"Not Rated1,505Forward/Reverse, Start/Stop, Continuous3084K6700000
    7/8" × 0.235" to 0.875"2 7/8"1 7/8"Not Rated1,760Forward/Reverse, Start/Stop, Continuous3084K6800000
    1" × 0.360" to 1.000"3"2"Not Rated2,010Forward/Reverse, Start/Stop, Continuous3084K6900000
    1 1/8" × 0.360" to 1.125"3 1/4"2 1/8"Not Rated2,260Forward/Reverse, Start/Stop, Continuous3084K7100000
    1 1/4" × 0.360" to 1.250"3 3/8"2 1/4"Not Rated2,510Forward/Reverse, Start/Stop, Continuous3084K7200000
    1 3/8" × 0.360" to 1.375"3 5/8"2 3/8"Not Rated2,770Forward/Reverse, Start/Stop, Continuous3084K7300000
    1 1/2" × 0.485" to 1.500"3 3/4"2 1/2"Not Rated3,020Forward/Reverse, Start/Stop, Continuous3084K74000000
    1 3/4" × 0.485" to 1.750"4 1/2"3"Not Rated5,625Forward/Reverse, Start/Stop, Continuous3084K75000000
    2" × 0.485" to 2.000"4 7/8"3 1/4"Not Rated6,430Forward/Reverse, Start/Stop, Continuous3084K76000000
    8 mm × 6.000 mm to 8.000 mm30 mm18 mmNot Rated225Forward/Reverse, Start/Stop, Continuous3084K11400000
    10 mm × 6.000 mm to 10.000 mm35 mm24 mmNot Rated285Forward/Reverse, Start/Stop, Continuous3084K11500000
    12 mm × 6.000 mm to 12.000 mm45 mm28 mmNot Rated545Forward/Reverse, Start/Stop, Continuous3084K11600000
    16 mm × 6.000 mm to 16.000 mm50 mm34 mmNot Rated1,095Forward/Reverse, Start/Stop, Continuous3084K11700000
    20 mm × 6.000 mm to 20.000 mm65 mm40 mmNot Rated2,025Forward/Reverse, Start/Stop, Continuous3084K11800000
    25 mm × 9.500 mm to 25.000 mm65 mm45 mmNot Rated2,535Forward/Reverse, Start/Stop, Continuous3084K11900000
    30 mm × 9.500 mm to 30.000 mm75 mm54 mmNot Rated5,420Forward/Reverse, Start/Stop, Continuous3084K121000000
    35 mm × 9.500 mm to 35.000 mm80 mm57 mmNot Rated3,550Forward/Reverse, Start/Stop, Continuous3084K122000000
    40 mm × 12.500 mm to 40.000 mm90 mm60 mmNot Rated4,055Forward/Reverse, Start/Stop, Continuous3084K123000000
     
    For Round Shafts
    1/2" × 0.235" to 0.500"1 7/8"1 1/4"Not Rated285Forward/Reverse, Start/Stop, Continuous3084K3100000
    5/8" × 0.235" to 0.625"2 1/4"1 1/2"Not Rated490Forward/Reverse, Start/Stop, Continuous3084K3200000
    3/4" × 0.235" to 0.750"2 5/8"1 3/4"Not Rated1,130Forward/Reverse, Start/Stop, Continuous3084K3300000
    7/8" × 0.235" to 0.875"2 7/8"1 7/8"Not Rated1,320Forward/Reverse, Start/Stop, Continuous3084K4700000
    1" × 0.360" to 1.000"3"2"Not Rated1,510Forward/Reverse, Start/Stop, Continuous3084K3400000
    1 1/8" × 0.360" to 1.125"3 1/4"2 1/8"Not Rated1,695Forward/Reverse, Start/Stop, Continuous3084K4800000
    1 1/4" × 0.360" to 1.250"3 3/8"2 1/4"Not Rated1,885Forward/Reverse, Start/Stop, Continuous3084K3500000
    1 3/8" × 0.360" to 1.375"3 5/8"2 3/8"Not Rated2,080Forward/Reverse, Start/Stop, Continuous3084K4900000
    1 1/2" × 0.485" to 1.500"3 3/4"2 1/2"Not Rated2,265Forward/Reverse, Start/Stop, Continuous3084K3600000
    1 3/4" × 0.485" to 1.750"4 1/2"3"Not Rated4,220Forward/Reverse, Start/Stop, Continuous3084K51000000
    2" × 0.485" to 2.000"4 7/8"3 1/4"Not Rated4,825Forward/Reverse, Start/Stop, Continuous3084K52000000
    8 mm × 6.000 mm to 8.000 mm30 mm18 mmNot Rated170Forward/Reverse, Start/Stop, Continuous3084K8900000
    10 mm × 6.000 mm to 10.000 mm35 mm24 mmNot Rated210Forward/Reverse, Start/Stop, Continuous3084K9100000
    12 mm × 6.000 mm to 12.000 mm45 mm28 mmNot Rated405Forward/Reverse, Start/Stop, Continuous3084K9200000
    16 mm × 6.000 mm to 16.000 mm50 mm34 mmNot Rated820Forward/Reverse, Start/Stop, Continuous3084K9300000
    20 mm × 6.000 mm to 20.000 mm65 mm40 mmNot Rated1,520Forward/Reverse, Start/Stop, Continuous3084K9400000
    25 mm × 9.500 mm to 25.000 mm65 mm45 mmNot Rated1,900Forward/Reverse, Start/Stop, Continuous3084K9500000
    30 mm × 9.500 mm to 30.000 mm75 mm54 mmNot Rated4,065Forward/Reverse, Start/Stop, Continuous3084K9600000
    35 mm × 9.500 mm to 35.000 mm80 mm57 mmNot Rated2,660Forward/Reverse, Start/Stop, Continuous3084K97000000
    40 mm × 12.500 mm to 40.000 mm90 mm60 mmNot Rated3,040Forward/Reverse, Start/Stop, Continuous3084K98000000
     
    303 Stainless Steel
    Image of Product. Front orientation. Rigid Shaft Couplings. Machinable-Bore Clamping Rigid Shaft Couplings.
    Image of Specification. For Keyed Shafts. Back orientation. Contains Inset, Border. For Keyed Shafts. Machinable-Bore Clamping Rigid Shaft Couplings.
    Image of Specification. For Round Shafts. Back orientation. Contains Inset, Border. For Round Shafts. Machinable-Bore Clamping Rigid Shaft Couplings.

    For Keyed

    Shafts

    For Round

    Shafts

    303 stainless steel couplings resist rusting from water. But, they won’t stand up to salt water or chloride.
    For Keyed Shafts—Couplings for keyed shafts grip the shaft’s key to eliminate slipping. They handle higher torque than couplings for round shafts.
    For Shaft Dia.
    Overall
    Lg.
    OD
    Max. Rotation
    Speed
    Max. Torque,
    in·lbf
    For Rotary Motion
    Each
    For Keyed Shafts
    1/2" × 0.235" to 0.500"1 7/8"1 1/4"Not Rated260Forward/Reverse, Start/Stop, Continuous3084K77000000
    5/8" × 0.235" to 0.625"2 1/4"1 1/2"Not Rated540Forward/Reverse, Start/Stop, Continuous3084K78000000
    3/4" × 0.235" to 0.750"2 5/8"1 3/4"Not Rated1,035Forward/Reverse, Start/Stop, Continuous3084K79000000
    1" × 0.360" to 1.000"3"2"Not Rated1,380Forward/Reverse, Start/Stop, Continuous3084K82000000
    1 1/8" × 0.360" to 1.125"3 1/4"2 1/8"Not Rated1,550Forward/Reverse, Start/Stop, Continuous3084K83000000
    1 1/4" × 0.360" to 1.250"3 3/8"2 1/4"Not Rated1,725Forward/Reverse, Start/Stop, Continuous3084K84000000
    1 1/2" × 0.485" to 1.500"3 3/4"2 1/2"Not Rated2,075Forward/Reverse, Start/Stop, Continuous3084K86000000
    10 mm × 6.000 mm to 10.000 mm35 mm24 mmNot Rated65Forward/Reverse, Start/Stop, Continuous3084K12700000
    12 mm × 6.000 mm to 12.000 mm45 mm28 mmNot Rated240Forward/Reverse, Start/Stop, Continuous3084K12800000
    16 mm × 6.000 mm to 16.000 mm50 mm34 mmNot Rated485Forward/Reverse, Start/Stop, Continuous3084K12900000
    20 mm × 6.000 mm to 20.000 mm65 mm40 mmNot Rated900Forward/Reverse, Start/Stop, Continuous3084K131000000
     
    For Round Shafts
    1/2" × 0.235" to 0.500"1 7/8"1 1/4"Not Rated195Forward/Reverse, Start/Stop, Continuous3084K5300000
    5/8" × 0.235" to 0.625"2 1/4"1 1/2"Not Rated405Forward/Reverse, Start/Stop, Continuous3084K5400000
    3/4" × 0.235" to 0.750"2 5/8"1 3/4"Not Rated775Forward/Reverse, Start/Stop, Continuous3084K5500000
    7/8" × 0.235" to 0.875"2 7/8"1 7/8"Not Rated905Forward/Reverse, Start/Stop, Continuous3084K56000000
    1" × 0.360" to 1.000"3"2"Not Rated1,035Forward/Reverse, Start/Stop, Continuous3084K57000000
    1 1/4" × 0.360" to 1.250"3 3/8"2 1/4"Not Rated1,295Forward/Reverse, Start/Stop, Continuous3084K59000000
    1 1/2" × 0.485" to 1.500"3 3/4"2 1/2"Not Rated1,555Forward/Reverse, Start/Stop, Continuous3084K62000000
    1 3/4" × 0.485" to 1.750"4 1/2"3"Not Rated2,900Forward/Reverse, Start/Stop, Continuous3084K63000000
    8 mm × 6.000 mm to 8.000 mm30 mm18 mmNot Rated35Forward/Reverse, Start/Stop, Continuous3084K10200000
    10 mm × 6.000 mm to 10.000 mm35 mm24 mmNot Rated45Forward/Reverse, Start/Stop, Continuous3084K10300000
    12 mm × 6.000 mm to 12.000 mm45 mm28 mmNot Rated180Forward/Reverse, Start/Stop, Continuous3084K10400000
    16 mm × 6.000 mm to 16.000 mm50 mm34 mmNot Rated365Forward/Reverse, Start/Stop, Continuous3084K105000000
    20 mm × 6.000 mm to 20.000 mm65 mm40 mmNot Rated675Forward/Reverse, Start/Stop, Continuous3084K106000000
     

    Machinable Shaft Ends

    One side is unfinished for milling custom pulleys, threaded hubs, sprockets, collars, knobs, sensor targets, or just about anything imaginable; the other side is a one-piece clamping coupling for mounting whatever you’ve created to your shaft. Slide these ends onto your shaft and tighten the clamping screws for a secure hold that won’t damage your shaft.
    Straight End
    Image of Product. Front orientation. Machinable Shaft Ends. Straight End.
    Image of Product. Back orientation. Machinable Shaft Ends. Straight End.
    Image of Specification. Front orientation. ZoomedIn view. Contains Inset, Border. For Keyed Shafts.
    Image of Specification. Front orientation. ZoomedIn view. Contains Inset, Border. For Round Shafts.

    For

    Keyed

    Shafts

    For

    Round

    Shafts

    1215 Carbon Steel—Carbon steel ends are easier to machine than stainless steel. They have a black-oxide finish that adds a layer of rust resistance but should be used in primarily dry environments.
    303 Stainless Steel—Stainless steel ends provide the most corrosion resistance but are more difficult to machine than steel.
    For Keyed Shafts—Ends for keyed shafts have keyways that firmly grip the shaft’s key to eliminate slipping. They handle higher torque than ends for round shafts.
    For Shaft
    Dia.
    Overall
    Lg.
    OD
    For Rotary Motion
    Each
    Black-Oxide 1215 Carbon Steel
     
    For Keyed Shafts
    1/2"2 3/4"1 1/4"Continuous, Forward/Reverse, Start/Stop3463N75000000
    5/8"3 1/4"1 1/2"Continuous, Forward/Reverse, Start/Stop3463N7600000
    3/4"4 1/4"1 3/4"Continuous, Forward/Reverse, Start/Stop3463N7700000
    7/8"4 3/8"1 7/8"Continuous, Forward/Reverse, Start/Stop3463N7800000
    1"4 3/4"2"Continuous, Forward/Reverse, Start/Stop3463N7900000
    1 1/8"4 3/4"2 1/8"Continuous, Forward/Reverse, Start/Stop3463N8100000
    1 1/4"5"2 1/4"Continuous, Forward/Reverse, Start/Stop3463N82000000
    1 3/8"5"2 3/8"Continuous, Forward/Reverse, Start/Stop3463N83000000
    1 1/2"5 3/8"2 1/2"Continuous, Forward/Reverse, Start/Stop3463N84000000
    1 3/4"6"3"Continuous, Forward/Reverse, Start/Stop3463N85000000
    2"6 3/4"3 1/4"Continuous, Forward/Reverse, Start/Stop3463N86000000
     
    For Round Shafts
    1/2"2 3/4"1 1/4"Continuous, Forward/Reverse, Start/Stop3463N5100000
    5/8"3 1/4"1 1/2"Continuous, Forward/Reverse, Start/Stop3463N5200000
    3/4"4 1/4"1 3/4"Continuous, Forward/Reverse, Start/Stop3463N5300000
    7/8"4 3/8"1 7/8"Continuous, Forward/Reverse, Start/Stop3463N5400000
    1"4 3/4"2"Continuous, Forward/Reverse, Start/Stop3463N5500000
    1 1/8"4 3/4"2 1/8"Continuous, Forward/Reverse, Start/Stop3463N5600000
    1 1/4"5"2 1/4"Continuous, Forward/Reverse, Start/Stop3463N5700000
    1 3/8"5"2 3/8"Continuous, Forward/Reverse, Start/Stop3463N5800000
    1 1/2"5 3/8"2 1/2"Continuous, Forward/Reverse, Start/Stop3463N5900000
    1 3/4"6"3"Continuous, Forward/Reverse, Start/Stop3463N61000000
    2"6 3/4"3 1/4"Continuous, Forward/Reverse, Start/Stop3463N62000000
     
    303 Stainless Steel
     
    For Keyed Shafts
    1/2"2 3/4"1 1/4"Continuous, Forward/Reverse, Start/Stop3463N8700000
    5/8"3 1/4"1 1/2"Continuous, Forward/Reverse, Start/Stop3463N8800000
    3/4"4 1/4"1 3/4"Continuous, Forward/Reverse, Start/Stop3463N89000000
    7/8"4 3/8"1 7/8"Continuous, Forward/Reverse, Start/Stop3463N91000000
    1"4 3/4"2"Continuous, Forward/Reverse, Start/Stop3463N92000000
    1 1/8"4 3/4"2 1/8"Continuous, Forward/Reverse, Start/Stop3463N93000000
    1 1/4"5"2 1/4"Continuous, Forward/Reverse, Start/Stop3463N94000000
    1 3/8"5"2 3/8"Continuous, Forward/Reverse, Start/Stop3463N95000000
    1 1/2"5 3/8"2 1/2"Continuous, Forward/Reverse, Start/Stop3463N96000000
    1 3/4"6"3"Continuous, Forward/Reverse, Start/Stop3463N97000000
    2"6 3/4"3 1/4"Continuous, Forward/Reverse, Start/Stop3463N98000000
     
    For Round Shafts
    1/2"2 3/4"1 1/4"Continuous, Forward/Reverse, Start/Stop3463N6300000
    5/8"3 1/4"1 1/2"Continuous, Forward/Reverse, Start/Stop3463N6400000
    3/4"4 1/4"1 3/4"Continuous, Forward/Reverse, Start/Stop3463N6500000
    7/8"4 3/8"1 7/8"Continuous, Forward/Reverse, Start/Stop3463N6600000
    1"4 3/4"2"Continuous, Forward/Reverse, Start/Stop3463N67000000
    1 1/8"4 3/4"2 1/8"Continuous, Forward/Reverse, Start/Stop3463N6800000
    1 1/4"5"2 1/4"Continuous, Forward/Reverse, Start/Stop3463N69000000
    1 3/8"5"2 3/8"Continuous, Forward/Reverse, Start/Stop3463N71000000
    1 1/2"5 3/8"2 1/2"Continuous, Forward/Reverse, Start/Stop3463N72000000
    1 3/4"6"3"Continuous, Forward/Reverse, Start/Stop3463N73000000
    2"6 3/4"3 1/4"Continuous, Forward/Reverse, Start/Stop3463N74000000
     
    Flanged End
    Image of Product. Back orientation. Machinable Shaft Ends. Flanged End.
    Image of Specification. Front orientation. ZoomedIn view. Contains Inset, Border. For Keyed Shafts.
    Image of Specification. Front orientation. ZoomedIn view. Contains Inset, Border. For Round Shafts.

    For

    Keyed

    Shafts

    For

    Round

    Shafts

    Use flanged ends to make objects with larger ODs than straight ends, or add mounting holes to create a custom mounting flange for connecting components.
    1117 Carbon Steel—Carbon steel ends are easier to machine than stainless steel. They have a black-oxide finish that adds a layer of rust resistance but should be used in primarily dry environments.
    303 Stainless Steel—Stainless steel ends provide the most corrosion resistance but are more difficult to machine than steel.
    For Keyed Shafts—Ends for keyed shafts have keyways that firmly grip the shaft’s key to eliminate slipping. They handle higher torque than ends for round shafts.
    For Shaft
    Dia.
    Overall
    Lg.
    OD
    Flange
    OD
    For Rotary Motion
    Each
    Black-Oxide 1117 Carbon Steel
     
    For Keyed Shafts
    1/2"1 11/16"1 1/4"2 15/64"Continuous, Forward/Reverse, Start/Stop3463N31000000
    3/4"2 1/16"1 3/4"2 63/64"Continuous, Forward/Reverse, Start/Stop3463N32000000
    1"2 1/4"2"3 15/64"Continuous, Forward/Reverse, Start/Stop3463N33000000
     
    For Round Shafts
    1/2"1 11/16"1 1/4"2 15/64"Continuous, Forward/Reverse, Start/Stop3463N1100000
    3/4"2 1/16"1 3/4"2 63/64"Continuous, Forward/Reverse, Start/Stop3463N1200000
    1"2 1/4"2"3 15/64"Continuous, Forward/Reverse, Start/Stop3463N1300000
     
    303 Stainless Steel
     
    For Keyed Shafts
    1/2"1 11/16"1 1/4"2 15/64"Continuous, Forward/Reverse, Start/Stop3463N41000000
    3/4"2 1/16"1 3/4"2 63/64"Continuous, Forward/Reverse, Start/Stop3463N42000000
    1"2 1/4"2"3 15/64"Continuous, Forward/Reverse, Start/Stop3463N43000000
     
    For Round Shafts
    1/2"1 11/16"1 1/4"2 15/64"Continuous, Forward/Reverse, Start/Stop3463N2100000
    3/4"2 1/16"1 3/4"2 63/64"Continuous, Forward/Reverse, Start/Stop3463N22000000
    1"2 1/4"2"3 15/64"Continuous, Forward/Reverse, Start/Stop3463N23000000
     

    Machinable-Bore Flexible Shaft Couplings

    Image of System. Front orientation. Contains Annotated. Flexible Shaft Couplings. Machinable-Bore Flexible Shaft Couplings.
    Image of System. (Each Component Sold Separately). Front orientation. Flexible Shaft Couplings. Machinable-Bore Flexible Shaft Couplings.

    (Each Component Sold

    Separately)

    Customize the bore of these flexible couplings to align uncommon shaft sizes as well as shafts that have become undersized from wear or oversized from coatings. 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 (all components sold separately). Fasten to your shaft with set screws (not included), which bite into the shaft for a secure hold. If the spider fails, the hubs will lock together, giving you time to shut down your equipment to prevent component damage and replace the spider. These couplings do not need lubrication.
    Iron Hubs and Buna-N Spiders
    Buna-N—Buna-N spiders are the most commonly used because they damp the most vibration, making them best for forward/reverse and start/stop motion. They resist oil and chemicals.
    Hubs
    Buna-N Spiders
    For Set
    Screw
    Misalignment Capability
    For Shaft Dia.
    Overall
    Lg.
    OD
    For Rotary Motion
    Fabrication
    Type
    Thread
    Size
    Each
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Temp. Range,
    ° F
    Spider
    Material
    Each
    1/4" to 5/8"1 23/32"1 5/64"Forward/Reverse, Start/StopSinteredCup Point1/4"-20
    		3530N1110000018,000260.015"1°-40 to 212Buna-N
    		6408K8400000
    1/4" to 3/4"1 63/64"1 23/64"Forward/Reverse, Start/StopSinteredCup Point1/4"-20
    		3530N1120000014,000430.015"1°-40 to 212Buna-N
    		6408K730000
    1/4" to 7/8"2 1/8"1 3/4"Forward/Reverse, Start/StopSinteredCup Point1/4"-20
    		3530N1130000011,000900.015"1°-40 to 212Buna-N
    		6408K7400000
    1/4" to 1"2 5/32"2 7/64"Forward/Reverse, Start/StopSinteredCup Point1/4"-20
    		3530N114000009,0001400.015"1°-40 to 212Buna-N
    		6408K7500000
    7/16" to 1 1/8"2 1/2"2 7/64"Forward/Reverse, Start/StopSinteredCup Point5/16"-18
    		3530N115000009,0001400.015"1°-40 to 212Buna-N
    		6408K7500000
    7/16" to 1 3/16"2 27/32"2 35/64"Forward/Reverse, Start/StopSinteredCup Point5/16"-18
    		3530N116000007,0003150.015"1°-40 to 212Buna-N
    		6408K7700000
    7/16" to 1 3/8"3 31/64"2 35/64"Forward/Reverse, Start/StopSinteredCup Point5/16"-18
    		3530N117000007,0003150.015"1°-40 to 212Buna-N
    		6408K7700000
    5/8" to 1 5/8"4 7/32"3 21/64"Forward/Reverse, Start/StopSinteredCup Point5/16"-18
    		3530N118000005,0007900.015"1°-40 to 212Buna-N
    		6408K7900000
    5/8" to 1 7/8"4 1/2"3 3/4"Forward/Reverse, Start/StopSinteredCup Point3/8"-16
    		3530N1190000005,0001,2400.015"1°-40 to 212Buna-N
    		6408K8100000
    3/4" to 2 1/8"4 7/8"4 1/2"Forward/Reverse, Start/StopSinteredCup Point1/2"-13
    		3530N1210000005,0001,7250.015"1°-40 to 212Buna-N
    		6408K8200000
    3/4" to 2 5/8"5 11/32"5"Forward/Reverse, Start/StopCastCup Point1/2"-13
    		3530N1220000004,2002,3400.015"1°-40 to 212Buna-N
    		6408K6200000
    Iron Hubs and Polyurethane Spiders
    Polyurethane Rubber—Polyurethane spiders can run at a higher torque than Buna-N spiders, but do not offer as much vibration damping. Use them for continuous motion. Similar to Buna-N, they resist oil and chemicals.
    Hubs
    Polyurethane Spiders
    For Set
    Screw
    Misalignment Capability
    For Shaft Dia.
    Overall
    Lg.
    OD
    For Rotary
    Motion
    Fabrication
    Type
    Thread
    Size
    Each
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Temp. Range,
    ° F
    Spider Material
    Each
    1/4" to 7/8"2 1/8"1 3/4"ContinuousSinteredCup Point1/4"-20
    		3530N3130000003,6001350.015"1°-30 to 160Polyurethane Rubber
    		2410K11000000
    1/4" to 1"2 5/32"2 7/64"ContinuousSinteredCup Point1/4"-20
    		3530N314000003,6002100.015"1°-30 to 160Polyurethane Rubber
    		2410K1300000
    7/16" to 1 1/8"2 1/2"2 7/64"ContinuousSinteredCup Point5/16"-18
    		3530N315000003,6002100.015"1°-30 to 160Polyurethane Rubber
    		2410K1300000
    7/16" to 1 3/16"2 27/32"2 35/64"ContinuousSinteredCup Point5/16"-18
    		3530N316000003,6004750.015"1°-30 to 160Polyurethane Rubber
    		2410K1500000
    7/16" to 1 3/8"3 31/64"2 35/64"ContinuousSinteredCup Point5/16"-18
    		3530N317000003,6004750.015"1°-30 to 160Polyurethane Rubber
    		2410K1500000
    5/8" to 1 5/8"4 7/32"3 21/64"ContinuousSinteredCup Point5/16"-18
    		3530N318000003,6001,1850.015"1°-30 to 160Polyurethane Rubber
    		2410K17000000
    5/8" to 1 7/8"4 1/2"3 3/4"ContinuousSinteredCup Point3/8"-16
    		3530N3190000003,6001,8600.015"1°-30 to 160Polyurethane Rubber
    		2410K19000000
    Iron Hubs and Hytrel Spiders
    Hytrel—Hytrel spiders operate at the highest torque, but are less flexible than Buna-N and polyurethane spiders so they have less misalignment and vibration damping capabilities. Use them for continuous motion. Compared to Buna-N and polyurethane, these have the best oil and chemical resistance.
    Hubs
    Hytrel Spiders
    For Set
    Screw
    Misalignment Capability
    For Shaft Dia.
    Overall
    Lg.
    OD
    For Rotary
    Motion
    Fabrication
    Type
    Thread
    Size
    Each
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    Parallel
    Angular
    Temp. Range,
    ° F
    Spider
    Material
    Each
    1/4" to 5/8"1 23/32"1 5/64"ContinuousSinteredCup Point1/4"-20
    		3530N2110000018,000500.015"0.5°-55 to 245Hytrel6408K91000000
    1/4" to 3/4"1 63/64"1 23/64"ContinuousSinteredCup Point1/4"-20
    		3530N212000003,6001100.015"0.5°-55 to 245Hytrel6408K9300000
    1/4" to 7/8"2 1/8"1 3/4"ContinuousSinteredCup Point1/4"-20
    		3530N213000003,6002250.015"0.5°-55 to 245Hytrel6408K9400000
    1/4" to 1"2 5/32"2 7/64"ContinuousSinteredCup Point1/4"-20
    		3530N214000003,6004000.015"0.5°-55 to 245Hytrel6408K9500000
    7/16" to 1 1/8"2 1/2"2 7/64"ContinuousSinteredCup Point5/16"-18
    		3530N215000003,6004000.015"0.5°-55 to 245Hytrel6408K9500000
    7/16" to 1 3/16"2 27/32"2 35/64"ContinuousSinteredCup Point5/16"-18
    		3530N216000003,6007900.015"0.5°-55 to 245Hytrel6408K96000000
    7/16" to 1 3/8"3 31/64"2 35/64"ContinuousSinteredCup Point5/16"-18
    		3530N217000003,6007900.015"0.5°-55 to 245Hytrel6408K96000000
    5/8" to 1 5/8"4 7/32"3 21/64"ContinuousSinteredCup Point5/16"-18
    		3530N218000003,6002,2650.015"0.5°-55 to 245Hytrel6408K97000000
    5/8" to 1 7/8"4 1/2"3 3/4"ContinuousSinteredCup Point3/8"-16
    		3530N2190000003,6003,7050.015"0.5°-55 to 245Hytrel6408K98000000
    3/4" to 2 1/8"4 7/8"4 1/2"ContinuousSinteredCup Point1/2"-13
    		3530N2210000005,0004,6800.015"0.5°-55 to 245Hytrel6408K99000000
    3/4" to 2 5/8"5 11/32"5"ContinuousCastCup Point1/2"-13
    		3530N2220000004,2006,2250.015"0.5°-55 to 245Hytrel6408K64000000

    Machinable-Bore Double U-Joints

    Image of Product. Front orientation. U-Joints. Machinable-Bore Double U-Joints.
    Image of Attribute. Front orientation. Contains Annotated. Machinable-Bore Double U-Joints.
    Drill custom bore sizes to connect shafts that are either parallel to each other or are misaligned at an angle. These double U-joints come apart and have a small, centered hole on each end to make drilling easy. Besides transferring torque, they keep parallel shafts moving in sync by making the output shaft move at the same rate as the input shaft. They have a pin-and-block joint, so they handle higher torque at lower speeds than other joint types such as those with needle bearings, making them a good choice for most applications. Made of steel, they’re strong and handle a good amount of torque.
    To extend their life by keeping lubricant in and contaminants out, use the grooves on their body to add a cover (sometimes called bellows or boots). Drill holes through the U-joint and your shafts and then connect using spring pins.
    Your shafts' misalignment will affect the speed and torque the U-joint will be able to transmit. The more the shafts are misaligned, the less speed and torque the U-joint will be able to transmit.
    Torque
    For Max.
    Shaft Dia.
    For Max.
    Shaft Dp.
    Joint
    Dia.
    Overall
    Lg.
    Max. Operating
    Angle
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    3° Operating Angle
    10° Operating Angle
    Parallel Misalignment
    Capability
    Joint Type
    For Shaft
    Type
    Each
    Steel
    3/8"5/8"1/2"4"25°1,750375150 in·lbf @ 300 rpm51 in·lbf @ 300 rpm0.845"Pin and BlockRound6443K150000000
    1/2"11/16"5/8"4 1/2"25°1,750540245 in·lbf @ 300 rpm83 in·lbf @ 300 rpm0.951"Pin and BlockRound6443K52000000
    5/8"7/8"3/4"5 3/8"25°1,750765330 in·lbf @ 300 rpm110 in·lbf @ 300 rpm1.133"Pin and BlockRound6443K63000000
    3/4"1"1"6 3/4"25°1,7501,560595 in·lbf @ 300 rpm200 in·lbf @ 300 rpm1.428"Pin and BlockRound6443K55000000
    1"1 1/16"1 1/4"7 1/2"25°1,7505,220980 in·lbf @ 300 rpm330 in·lbf @ 300 rpm1.585"Pin and BlockRound6443K29000000
    1 1/8"1 3/16"1 1/2"8 1/2"25°1,7507,9201,425 in·lbf @ 300 rpm480 in·lbf @ 300 rpm1.796"Pin and BlockRound6443K38000000
     

    Machinable-Bore Single U-Joints

    Image of Product. Front orientation. U-Joints. Machinable-Bore Single U-Joints.
    Image of Attribute. Front orientation. Contains Annotated. Machinable-Bore Single U-Joints.
    Customize the bores of these U-joints to fit the exact dimensions of your shafts. To make drilling easy, they come apart and have a small, centered starter hole on each end. They’re single U-joints, so they connect and transfer torque between two shafts that are misaligned at an angle. A good choice for most applications, all have a pin-and-block joint that handles higher torque at lower speeds than other joint types, such as those with needle bearings. Made of steel, they’re strong and handle a good amount of torque.
    To extend their life by keeping lubricant in and contaminants out, use the grooves on their body to add a cover (sometimes called bellows or boots). Drill holes through the U-joint and your shafts and then connect using spring pins.
    Your shafts' misalignment will affect the speed and torque the U-joint will be able to transmit. The more the shafts are misaligned, the less speed and torque the U-joint will be able to transmit.
    Torque
    For Max.
    Shaft Dia.
    For Max.
    Shaft Dp.
    Joint
    Dia.
    Overall
    Lg.
    Max. Operating
    Angle
    Max. Rotation
    Speed, rpm
    Max. Torque,
    in·lbf
    3° Operating Angle
    10° Operating Angle
    Joint Type
    For Shaft
    Type
    Each
    Steel
    3/8"5/8"1/2"2"25°1,750375150 in·lbf @ 300 rpm51 in·lbf @ 300 rpmPin and BlockRound6443K12000000
    1/2"11/16"5/8"2 1/4"25°1,750540245 in·lbf @ 300 rpm83 in·lbf @ 300 rpmPin and BlockRound6443K4200000
    5/8"7/8"3/4"2 11/16"25°1,750765330 in·lbf @ 300 rpm110 in·lbf @ 300 rpmPin and BlockRound6443K1300000
     
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