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About Shaft Couplings
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Clamping Vibration-Damping
Precision Flexible Shaft Couplings
Components of a Coupling Shown Assembled
(Each Component Sold Separately)
Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screws to secure. Good for precision motor and pump applications, the spider-shaped cushion reduces shock and compensates for minor shaft misalignment. Couplings allow zero backlash (no play).
A complete coupling consists of two hubs and one spider (each component sold separately). Hubs are lightweight, corrosion-resistant aluminum. Spiders are polyurethane for fair vibration damping and good chemical resistance.
Metric hubs for 10 mm shaft dia. and above have a keyway.
For technical drawings and 3-D models, click on a part number.
Hubs and Durometer 98A Spiders
Durometer 98A Polyurethane Spiders | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2024 Aluminum Hubs | Misalignment Capability | |||||||||||
| Overall Lg. | OD | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 1 7/64" | 3/4" | Forward/Reverse, Start/Stop | 000000 | 000000 | 8,000 | 30 | 0.003" | 0.8° | 0° to 180° | 0000000 | 000000 | |
| 1 13/32" | 1" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 150 | 0.003" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 1 13/16" | 1 5/16" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 170 | 0.003" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 2 7/64" | 1 5/8" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 330 | 0.004" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 2 13/32" | 2" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 550 | 0.005" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 3 13/64" | 2 1/4" | Forward/Reverse, Start/Stop | 000000 | 000000 | 8,000 | 820 | 0.004" | 0.8° | 0° to 180° | 0000000 | 00000 | |
Hubs and Durometer 92A Spiders
Durometer 92A Polyurethane Spiders | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2024 Aluminum Hubs | Misalignment Capability | |||||||||||
| Overall Lg. | OD | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 1 7/64" | 3/4" | Forward/Reverse, Start/Stop | 000000 | 000000 | 8,000 | 18 | 0.004" | 0.9° | 0° to 180° | 0000000 | 000000 | |
| 1 13/32" | 1" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 58 | 0.005" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 1 13/16" | 1 5/16" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 70 | 0.005" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 2 7/64" | 1 5/8" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 190 | 0.006" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 2 13/32" | 2" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 440 | 0.006" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 3 13/64" | 2 1/4" | Forward/Reverse, Start/Stop | 000000 | 000000 | 8,000 | 570 | 0.005" | 0.9° | 0° to 180° | 0000000 | 00000 | |
Hubs and Durometer 85A Spiders
Durometer 85A Polyurethane Spiders | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2024 Aluminum Hubs | Misalignment Capability | |||||||||||
| Overall Lg. | OD | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 1 7/64" | 3/4" | Forward/Reverse, Start/Stop | 000000 | 000000 | 8,000 | 10 | 0.005" | 1° | 0° to 180° | 0000000 | 000000 | |
| 1 13/32" | 1" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 30 | 0.006" | 1° | 0° to 180° | 0000000 | 00000 | |
| 1 13/16" | 1 5/16" | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 36 | 0.006" | 1° | 0° to 180° | 0000000 | 00000 | |
Set Screw Vibration-Damping
Precision Flexible Shaft Couplings
Components of a Coupling Shown Assembled
(Each Component Sold Separately)
The included set screw holds the coupling in place. Good for precision motor and pump applications, the spider-shaped cushion reduces shock and compensates for minor shaft misalignment. Couplings allow zero backlash (no play).
A complete coupling consists of two hubs and one spider (each component sold separately). Spiders are polyurethane for fair vibration damping and good chemical resistance.
Nylon hubs are electrically insulating, corrosion resistant, and lightweight. They also are slightly more forgiving of misalignment than aluminum hubs.
Aluminum hubs have good corrosion resistance and are lightweight, though not as lightweight as nylon hubs.
Nylon Hubs and Durometer 98A Spiders
Durometer 98A Polyurethane Spiders | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nylon Plastic Hubs | Misalignment Capability | ||||||||||||
| Overall Lg. | OD | For Shaft Type | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 1 13/32" | 1 5/16" | __ | Forward/Reverse, Start/Stop | 000000 | 000000 | 10,000 | 220 | 0.011" | 1° | 0° to 180° | 0000000 | 00000 | |
| 2 39/64" | 1 45/64" | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 9,000 | 300 | 0.011" | 1° | 0° to 180° | 0000000 | 0000 | |
| 3 7/64" | 2 13/64" | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 1,060 | 0.011" | 1° | 0° to 180° | 0000000 | 00000 | |
| 3 1/2" | 2 39/64" | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 7,000 | 2,830 | 0.011" | 1° | 0° to 180° | 0000000 | 00000 | |
| 35mm | 32mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 10,000 | 220 | 0.011" | 1° | 0° to 180° | 0000000 | 0000 | |
| 66mm | 42mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 9,000 | 300 | 0.011" | 1° | 0° to 180° | 0000000 | 0000 | |
| 78mm | 56mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 1,060 | 0.011" | 1° | 0° to 180° | 0000000 | 00000 | |
| 90mm | 66.5mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 7,000 | 2,830 | 0.011" | 1° | 0° to 180° | 0000000 | 00000 | |
Aluminum Hubs and Durometer 98A Spiders
Durometer 98A Polyurethane Spiders | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2024 Aluminum Hubs | Misalignment Capability | ||||||||||||
| Overall Lg. | OD | For Shaft Type | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 21mm | 15mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 000000 | 8,000 | 16 | 0.002" | 0.8° | -10° to 180° | 00000000 | 00000 | |
| 27mm | 19mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 10,000 | 220 | 0.011" | 1° | 0° to 180° | 0000000 | 0000 | |
| 35mm | 25mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 150 | 0.003" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 35mm | 25mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 150 | 0.003" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 44mm | 33mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 170 | 0.003" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 44mm | 33mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 170 | 0.003" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 53mm | 41mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 330 | 0.004" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 53mm | 41mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 330 | 0.004" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 61mm | 50mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 550 | 0.005" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 61mm | 50mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 550 | 0.005" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 80mm | 57mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 000000 | 8,000 | 820 | 0.004" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 80mm | 57mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 000000 | 8,000 | 820 | 0.004" | 0.8° | 0° to 180° | 0000000 | 00000 | |
Nylon Hubs and Durometer 64D Spiders
Durometer 64D Polyurethane Spiders | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nylon Plastic Hubs | Misalignment Capability | ||||||||||||
| Overall Lg. | OD | For Shaft Type | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 1 13/32" | 1 5/16" | __ | Forward/Reverse, Start/Stop | 000000 | 000000 | 10,000 | 280 | 0.011" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 2 39/64" | 1 45/64" | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 9,000 | 370 | 0.011" | 0.8° | 0° to 180° | 0000000 | 0000 | |
| 3 7/64" | 2 13/64" | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 1,320 | 0.011" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 3 1/2" | 2 39/64" | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 7,000 | 3,540 | 0.011" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 35mm | 32mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 10,000 | 280 | 0.011" | 0.8° | 0° to 180° | 0000000 | 0000 | |
| 66mm | 42mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 9,000 | 370 | 0.011" | 0.8° | 0° to 180° | 0000000 | 0000 | |
| 78mm | 56mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 1,320 | 0.011" | 0.8° | 0° to 180° | 0000000 | 00000 | |
| 90mm | 66.5mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 7,000 | 3,540 | 0.011" | 0.8° | 0° to 180° | 0000000 | 00000 | |
Aluminum Hubs and Durometer 64D Spiders
Durometer 64D Polyurethane Spiders | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2024 Aluminum Hubs | Misalignment Capability | ||||||||||||
| Overall Lg. | OD | For Shaft Type | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 27mm | 19mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 000000 | 10,000 | 280 | 0.011" | 0.8° | 0° to 180° | 0000000 | 00000 | |
Aluminum Hubs and Durometer 92A Spiders
Durometer 92A Polyurethane Spiders | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2024 Aluminum Hubs | Misalignment Capability | ||||||||||||
| Overall Lg. | OD | For Shaft Type | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 21mm | 15mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 000000 | 8,000 | 10 | 0.004" | 0.9° | -10° to 180° | 00000000 | 00000 | |
| 35mm | 25mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 58 | 0.005" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 35mm | 25mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 58 | 0.005" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 44mm | 33mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 70 | 0.005" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 44mm | 33mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 70 | 0.005" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 53mm | 41mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 190 | 0.006" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 53mm | 41mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 190 | 0.006" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 61mm | 50mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 440 | 0.006" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 61mm | 50mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 440 | 0.006" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 80mm | 57mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 000000 | 8,000 | 570 | 0.005" | 0.9° | 0° to 180° | 0000000 | 00000 | |
| 80mm | 57mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 000000 | 8,000 | 570 | 0.005" | 0.9° | 0° to 180° | 0000000 | 00000 | |
Aluminum Hubs and Durometer 85A Spiders
Durometer 85A Polyurethane Spiders | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2024 Aluminum Hubs | Misalignment Capability | ||||||||||||
| Overall Lg. | OD | For Shaft Type | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 21mm | 15mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 000000 | 8,000 | 4.8 | 0.005" | 1° | -10° to 180° | 00000000 | 000000 | |
| 35mm | 25mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 30 | 0.006" | 1° | 0° to 180° | 0000000 | 00000 | |
| 35mm | 25mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 30 | 0.006" | 1° | 0° to 180° | 0000000 | 00000 | |
| 44mm | 33mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 36 | 0.006" | 1° | 0° to 180° | 0000000 | 00000 | |
| 44mm | 33mm | Keyed | Continuous, Forward/Reverse, Start/Stop | 0000000 | 00000 | 8,000 | 36 | 0.006" | 1° | 0° to 180° | 0000000 | 00000 | |
Nylon Hubs and Durometer 80A Spiders
Durometer 80A Polyurethane Spiders | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nylon Plastic Hubs | Misalignment Capability | ||||||||||||
| Overall Lg. | OD | For Shaft Type | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 1 13/32" | 1 5/16" | __ | Forward/Reverse, Start/Stop | 000000 | 000000 | 10,000 | 50 | 0.011" | 1.2° | 0° to 180° | 0000000 | 00000 | |
| 2 39/64" | 1 45/64" | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 9,000 | 105 | 0.011" | 1.2° | 0° to 180° | 0000000 | 0000 | |
| 3 7/64" | 2 13/64" | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 305 | 0.011" | 1.2° | 0° to 180° | 0000000 | 00000 | |
| 3 1/2" | 2 39/64" | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 7,000 | 750 | 0.011" | 1.2° | 0° to 180° | 0000000 | 00000 | |
| 35mm | 32mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 10,000 | 50 | 0.011" | 1.2° | 0° to 180° | 0000000 | 0000 | |
| 66mm | 42mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 9,000 | 105 | 0.011" | 1.2° | 0° to 180° | 0000000 | 0000 | |
| 78mm | 56mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 8,000 | 305 | 0.011" | 1.2° | 0° to 180° | 0000000 | 00000 | |
| 90mm | 66.5mm | Keyed | Forward/Reverse, Start/Stop | 000000 | 00000 | 7,000 | 750 | 0.011" | 1.2° | 0° to 180° | 0000000 | 00000 | |
Aluminum Hubs and Durometer 80A Spiders
Durometer 80A Polyurethane Spiders | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2024 Aluminum Hubs | Misalignment Capability | ||||||||||||
| Overall Lg. | OD | For Shaft Type | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 27mm | 19mm | Round | Continuous, Forward/Reverse, Start/Stop | 0000000 | 000000 | 10,000 | 50 | 0.011" | 1.2° | 0° to 180° | 0000000 | 00000 | |
Clamping Flexible Shaft Couplings
Components of a Coupling Shown Assembled
(Each Component Sold Separately)
Designed to grip evenly around your shaft, these couplings provide more holding power than set screw couplings without marring the shaft. Tighten the clamping screw to secure. Also known as Lovejoy couplings, they 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 (each component sold separately). Hubs are aluminum for light weight and good corrosion resistance.
Hytrel spiders provide fair vibration damping and excellent chemical resistance. Polyurethane spiders provide fair vibration damping and good chemical resistance.
For technical drawings and 3-D models, click on a part number.
6026 Aluminum Hubs and Hytrel Rubber Spiders
Hytrel Rubber Spiders | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
6026 Aluminum Hubs | Misalignment Capability | |||||||||||
| O'all Lg. | OD | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 7/8" | 9/16" | Forward/Reverse, Start/Stop | 0000000 | 000000 | 27,000 | 42 | 0.002" | 0.8° | -55° to 245° | 0000000 | 00000 | |
| 1 3/16" | 51/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 19,000 | 105 | 0.002" | 0.8° | -55° to 245° | 0000000 | 00000 | |
| 1 11/32" | 63/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 15,200 | 210 | 0.002" | 0.8° | -55° to 245° | 0000000 | 00000 | |
| 1 25/64" | 1 3/16" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 12,700 | 280 | 0.002" | 0.8° | -55° to 245° | 0000000 | 00000 | |
6026 Aluminum Hubs and Polyurethane Spiders
Polyurethane Spiders | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
6026 Aluminum Hubs | Misalignment Capability | |||||||||||
| O'all Lg. | OD | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
| 7/8" | 9/16" | Forward/Reverse, Start/Stop | 0000000 | 000000 | 27,000 | 21 | 0.004" | 1° | -30° to 160° | 0000000 | 00000 | |
| 1 3/16" | 51/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 19,000 | 53 | 0.004" | 1° | -30° to 160° | 0000000 | 0000 | |
| 1 11/32" | 63/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 15,200 | 89 | 0.004" | 1° | -30° to 160° | 0000000 | 00000 | |
| 1 25/64" | 1 3/16" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 12,700 | 130 | 0.004" | 1° | -30° to 160° | 0000000 | 0000 | |