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Length
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Maximum Torque
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Set Screw Drive Style
Clamping Screw Material
Export Control Classification Number (ECCN)
DFARS Specialty Metals
Set Screw Flexible Shaft Couplings
Hubs | Buna-N Spiders | Hytrel Spiders | Polyurethane Spiders | Polyurethane Split Spiders | 347 Stainless Steel Retaining Rings | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Misalignment Capability | Misalignment Capability | 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 | 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 | Each | ||||||||
Iron Hubs | ||||||||||||||||||||||||||||||||||||||||||
| 1 23/32" | 1 5/64" | Round | Forward/Reverse, Start/Stop | 7/16" | 6408K92 | 00000 | 18,000 | 26 | 0.015" | 1° | -40 to 212 | Buna-N | 6408K84 | 00000 | 18,000 | 50 | 0.015" | 0.5° | -55 to 245 | Hytrel | 6408K91 | 000000 | — | — | — | — | — | — | ——— | 0 | — | — | — | — | — | — | ——— | 0 | ——— | 0 | ||
| 1 63/64" | 1 23/64" | Round | Forward/Reverse, Start/Stop | 7/16" | 6408K118 | 00000 | 14,000 | 43 | 0.015" | 1° | -40 to 212 | Buna-N | 6408K73 | 0000 | 3,600 | 110 | 0.015" | 0.5° | -55 to 245 | Hytrel | 6408K93 | 00000 | — | — | — | — | — | — | ——— | 0 | — | — | — | — | — | — | ——— | 0 | ——— | 0 | ||
| 2 1/8" | 1 3/4" | Round | Forward/Reverse, Start/Stop | 7/16" | 6408K119 | 00000 | 11,000 | 90 | 0.015" | 1° | -40 to 212 | Buna-N | 6408K74 | 00000 | 3,600 | 225 | 0.015" | 0.5° | -55 to 245 | Hytrel | 6408K94 | 00000 | 3,600 | 135 | 0.015" | 1° | -30 to 160 | Polyurethane Rubber | 2410K11 | 000000 | — | — | — | — | — | — | ——— | 0 | ——— | 0 | ||
| 2 5/32" | 2 7/64" | Round | Forward/Reverse, Start/Stop | 7/16" | 6408K23 | 00000 | 9,000 | 140 | 0.015" | 1° | -40 to 212 | Buna-N | 6408K75 | 00000 | 3,600 | 225 | 0.015" | 0.5° | -55 to 245 | Hytrel | 6408K94 | 00000 | 3,600 | 210 | 0.015" | 1° | -30 to 160 | Polyurethane Rubber | 2410K13 | 00000 | 9,200 | 670 | 0.03" | 2° | -30 to 200 | Polyurethane Rubber | 2393K33 | 000000 | 2393K23 | 000000 | ||
| 2 1/2" | 2 7/64" | Round | Forward/Reverse, Start/Stop | 7/16" | 6408K152 | 00000 | 9,000 | 140 | 0.015" | 1° | -40 to 212 | Buna-N | 6408K75 | 00000 | 3,600 | 400 | 0.015" | 0.5° | -55 to 245 | Hytrel | 6408K95 | 00000 | 3,600 | 210 | 0.015" | 1° | -30 to 160 | Polyurethane Rubber | 2410K13 | 00000 | 9,200 | 670 | 0.03" | 2° | -30 to 200 | Polyurethane Rubber | 2393K33 | 00000 | 2393K23 | 00000 | ||
| 2 27/32" | 2 35/64" | Round | Forward/Reverse, Start/Stop | 7/16" | 6408K161 | 00000 | 7,000 | 315 | 0.015" | 1° | -40 to 212 | Buna-N | 6408K77 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55 to 245 | Hytrel | 6408K96 | 000000 | 3,600 | 475 | 0.015" | 1° | -30 to 160 | Polyurethane Rubber | 2410K15 | 00000 | 7,700 | 1,110 | 0.03" | 2° | -30 to 200 | Polyurethane Rubber | 2393K34 | 000000 | 2393K24 | 00000 | ||
| 3 31/64" | 2 35/64" | Round | Forward/Reverse, Start/Stop | 7/16" | 6408K172 | 00000 | 7,000 | 315 | 0.015" | 1° | -40 to 212 | Buna-N | 6408K77 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55 to 245 | Hytrel | 6408K96 | 000000 | 3,600 | 475 | 0.015" | 1° | -30 to 160 | Polyurethane Rubber | 2410K15 | 00000 | 7,700 | 1,110 | 0.03" | 2° | -30 to 200 | Polyurethane Rubber | 2393K34 | 000000 | 2393K24 | 00000 | ||
Lightweight Flexible Shaft Couplings
Hubs | Nylon Sleeves | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | Axial | Max. Temp., ° F | Each | ||||
Steel Hubs | ||||||||||||||||
| 1 25/32" | 1 37/64" | Keyed | Continuous | 7/16" | 6247K21 | 000000 | 14,000 | 255 | 0.016" | 1° | 0.04" | 180 | 6247K31 | 000000 | ||
| 1 31/32" | 1 29/32" | Keyed | Continuous | 7/16" | 6247K22 | 00000 | 11,800 | 425 | 0.016" | 1° | 0.04" | 180 | 6247K32 | 00000 | ||
Clamping Precision Flexible Shaft Couplings
Misalignment Capability | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Diameter | Overall Lg. | OD | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Axial | For Rotary Motion | Each | |||
Spiral Cut | ||||||||||||
7075 Aluminum | ||||||||||||
| 1/4" × 7/16" | 1 1/4" | 1 1/4" | 10,000 | 84 | 0.006" | 3° | 0.006" | Forward/Reverse, Start/Stop | 6208K559 | 0000000 | ||
| 3/8" × 7/16" | 1 1/4" | 1 1/4" | 10,000 | 84 | 0.006" | 3° | 0.006" | Forward/Reverse, Start/Stop | 6208K562 | 000000 | ||
| 7/16" × 7/16" | 1 1/4" | 1 1/4" | 10,000 | 84 | 0.006" | 3° | 0.006" | Forward/Reverse, Start/Stop | 6208K563 | 000000 | ||
| 7/16" × 1/2" | 1 1/4" | 1 1/4" | 10,000 | 84 | 0.006" | 3° | 0.006" | Forward/Reverse, Start/Stop | 6208K568 | 000000 | ||
| 7/16" × 1/2" | 2" | 1 1/4" | 10,000 | 115 | 0.015" | 5° | 0.01" | Forward/Reverse, Start/Stop | 6208K599 | 000000 | ||
| 7/16" × 1/2" | 2 3/8" | 1 1/2" | 10,000 | 155 | 0.015" | 5° | 0.01" | Forward/Reverse, Start/Stop | 6208K632 | 000000 | ||
Set Screw Precision Flexible Shaft Couplings
Misalignment Capability | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Diameter | Overall Lg. | OD | Max. Rotation Speed, rpm | Max. Torque, in·lbf | Parallel | Angular | Axial | For Rotary Motion | Each | |||
Spiral Cut | ||||||||||||
7075 Aluminum | ||||||||||||
| 7/16" × 5/16" | 1 1/4" | 1 1/4" | 10,000 | 84 | 0.006" | 3° | 0.006" | Forward/Reverse, Start/Stop | 9861T834 | 000000 | ||
| 7/16" × 3/8" | 1 1/4" | 1 1/4" | 10,000 | 84 | 0.006" | 3° | 0.006" | Forward/Reverse, Start/Stop | 9861T831 | 00000 | ||
| 1/2" × 7/16" | 1 1/4" | 1 1/4" | 10,000 | 84 | 0.006" | 3° | 0.006" | Forward/Reverse, Start/Stop | 9861T836 | 00000 | ||
Clamping Flexible Shaft Couplings
Hubs | Hytrel Spiders | Polyurethane 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 | |||||
6026 Aluminum Hubs | ||||||||||||||||||||||||
| 1 11/32" | 63/64" | Round | Forward/Reverse, Start/Stop | 7/16" | 2401K14 | 000000 | 15,200 | 210 | 0.002" | 0.8° | -55 to 245 | Hytrel | 2401K86 | 000000 | 15,200 | 89 | 0.004" | 1° | -30 to 160 | Polyurethane Rubber | 2401K85 | 000000 | ||
Two-Piece Shaft Collars
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 | ||||||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 2 | 6436K52 | 00000 | 3/32" | 3/64" | 3357K22 | 000000 | ||
Zinc-Plated Carbon Steel | ||||||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 2 | 2380K16 | 00000 | — | — | ——— | 0 | ||
303 Stainless Steel | ||||||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 2 | 6436K62 | 00000 | — | — | ——— | 0 | ||
316 Stainless Steel | ||||||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 2 | 9633T9 | 00000 | — | — | ——— | 0 | ||
Aluminum | ||||||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 2 | 6436K134 | 0000 | — | — | ——— | 0 | ||
Extreme-Angle Geared Single U-Joints
![]() | ![]() |
For Shaft | Overall | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Dp. | Joint Dia. | Ht. | Lg. | Max. Operating Angle | Speed Ratio | Max. Rotation Speed | Max. Torque | Joint Type | For Shaft Type | Each | |||
Steel | ||||||||||||||
| 7/16" | 1 1/8" | 3/4" | 2 3/4" | 10 1/4" | 136° | 1:1 | Not Rated | Not Rated | Geared | Round | 6450K1 | 0000000 | ||
Single U-Joints
For Shaft | Torque | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dia. | Dp. | Joint Dia. | Overall Lg. | Max. Operating Angle | Max. Rotation Speed, rpm | Max. Torque, in·lbf | 3° Operating Angle | 10° Operating Angle | Shaft Mount Type | Spring Pins Included | Each | |||
Pin-and-Block Joint | ||||||||||||||
Steel—For Round Shafts | ||||||||||||||
| 7/16" | 7/8" | 7/8" | 3" | 25° | 1,750 | 1,175 | 445 in·lbf @ 300 rpm | 150 in·lbf @ 300 rpm | Spring Pin | No | 6443K28 | 0000000 | ||
Shaft Collars
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Clamping Screw | ||||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 1 | 6435K53 | 00000 | ||
Zinc-Plated Carbon Steel | ||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 1 | 9961K16 | 0000 | ||
303 Stainless Steel | ||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 1 | 6435K63 | 00000 | ||
316 Stainless Steel | ||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 1 | 9421T6 | 00000 | ||
Aluminum | ||||||||
| 7/16" | 15/16" | 3/8" | Socket Head | 1 | 6157K33 | 0000 | ||
Corrosion-Resistant Mil. Spec. Machinable-Bore Single U-Joints
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 | Mil. Spec. | Each | |||
303 Stainless Steel | |||||||||||||||
| 7/16" | 31/32" | 3/4" | 2 11/16" | 35° | 1,500 | 1,000 | Not Rated | Not Rated | Pin and Block | Round | MIL-U-20625 Class C | 2457K34 | 0000000 | ||
Oversized Shaft Collars
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Clamping Screw | ||||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 7/16" | 1 1/4" | 7/16" | Socket Head | 1 | 9951K34 | 000000 | ||
Oversized Two-Piece Shaft Collars
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For Round Shafts |
Clamping Screw | For Round Shafts | |||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 7/16" | 1 1/4" | 7/16" | Socket Head | 2 | 8386K34 | 000000 | ||
Plastic Quick-Release Shaft Collars with Pull Ring
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For Shaft Dia. | OD | Wd. | Each | |||
|---|---|---|---|---|---|---|
ABS | ||||||
| 7/16" | 1 1/8" | 1" | 6168K17 | 000000 | ||
Plastic Set Screw Shaft Collars
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Set Screw | Each | ||||||||
|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | 1-19 | 20-Up | |||
Nylon | |||||||||
| 7/16" | 7/8" | 7/16" | Hex Socket | 1 | 60475K71 | 00000 | 00000 | ||
Quick-Release Shaft Collars with Pull Ring
Shaft Collars with Lever
Two-Piece Shaft Collars with Lever
Set Screw Shaft Collars
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Set Screw | ||||||||
|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |||
Black-Oxide Carbon Steel | ||||||||
| 7/16" | 7/8" | 7/16" | Hex Socket | 1 | 9414T9 | 00000 | ||
Zinc-Plated Carbon Steel | ||||||||
| 7/16" | 7/8" | 7/16" | Hex Socket | 1 | 6432K15 | 0000 | ||
303 Stainless Steel | ||||||||
| 7/16" | 7/8" | 7/16" | Hex Socket | 1 | 6462K15 | 0000 | ||
316 Stainless Steel | ||||||||
| 7/16" | 7/8" | 7/16" | Hex Socket | 1 | 9943K19 | 00000 | ||
Aluminum | ||||||||
| 7/16" | 7/8" | 7/16" | Hex Socket | 1 | 9946K14 | 0000 | ||
Brass | ||||||||
| 7/16" | 7/8" | 7/16" | Hex Socket | 1 | 6240K16 | 00000 | ||




















































