For Shaft Diameter For Shaft Diameter | Show |
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Construction Construction |
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Length Length |
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For Shaft Type For Shaft Type |
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 | Keyed |
For Motion Type For Motion Type |
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Shaft Mount Type Shaft Mount Type |
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 | Set Screw |
Set Screw Material Set Screw Material |
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Shaft Coupling Type Shaft Coupling Type |
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Set Screw Type Set Screw Type |
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Number of Teeth Number of Teeth |
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OD with Cover OD with Cover |
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Set Screw Finish Set Screw Finish |
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About Shaft Couplings
More
Set Screw Flexible Shaft Couplings
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 spiders provide good vibration damping and chemical resistance. Hytrel spiders provide fair vibration damping and excellent chemical resistance. Polyurethane spiders and split spiders provide fair vibration damping and good chemical resistance.
For technical drawings and 3-D models, click on a part number.
Buna-N Rubber Spiders | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron 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 | ||
| 2 5/32" | 2 7/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 000000 | 9,000 | 140 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
| 2 1/2" | 2 7/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 9,000 | 140 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 |
| 2 27/32" | 2 35/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 7,000 | 315 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
| 3 31/64" | 2 35/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 7,000 | 315 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
| 4 7/32" | 3 21/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 5,000 | 790 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
| 4 1/2" | 3 3/4" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 5,000 | 1,240 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
| 4 7/8" | 4 1/2" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 000000 | 5,000 | 1,725 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
| 5 11/32" | 5" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 000000 | 4,200 | 2,340 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
Hytrel Rubber Spiders | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron 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 | ||
| 2 5/32" | 2 7/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 000000 | 3,600 | 400 | 0.015" | 0.5° | -55° to 245° | 0000000 | 000000 |
| 2 1/2" | 2 7/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 400 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
| 2 27/32" | 2 35/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
| 3 31/64" | 2 35/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
| 4 7/32" | 3 21/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 2,265 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
| 4 1/2" | 3 3/4" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 3,705 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
| 4 7/8" | 4 1/2" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 000000 | 5,000 | 4,680 | 0.015" | 0.5° | -55° to 245° | 0000000 | 000000 |
| 5 11/32" | 5" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 000000 | 4,200 | 6,225 | 0.015" | 0.5° | -55° to 245° | 0000000 | 000000 |
Polyurethane Spiders | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron 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 | ||
| 2 5/32" | 2 7/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 000000 | 3,600 | 210 | 0.015" | 1° | -30° to 160° | 0000000 | 000000 |
| 2 1/2" | 2 7/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 210 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
| 2 27/32" | 2 35/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 475 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
| 3 31/64" | 2 35/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 475 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
| 4 7/32" | 3 21/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 1,185 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
| 4 1/2" | 3 3/4" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 3,600 | 1,860 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
Polyurethane Split Spiders | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron Hubs | Misalignment Capability | 347 Stainless Steel Retaining Rings | ||||||||||||
| Overall Lg. | OD | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | Each | |||
| 2 5/32" | 2 7/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 000000 | 9,200 | 670 | 0.03" | 2° | -30° to 200° | 0000000 | 000000 | 0000000 | 000000 |
| 2 1/2" | 2 7/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 9,200 | 670 | 0.03" | 2° | -30° to 200° | 0000000 | 00000 | 0000000 | 00000 |
| 2 27/32" | 2 35/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 7,700 | 1,110 | 0.03" | 2° | -30° to 200° | 0000000 | 00000 | 0000000 | 00000 |
| 3 31/64" | 2 35/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 7,700 | 1,110 | 0.03" | 2° | -30° to 200° | 0000000 | 00000 | 0000000 | 00000 |
| 4 7/32" | 3 21/64" | Forward/Reverse, Start/Stop | 15/16" | 0000000 | 00000 | 5,900 | 2,180 | 0.03" | 2° | -30° to 200° | 0000000 | 00000 | 0000000 | 00000 |
High-Torque Flexible Shaft Couplings
With a rugged roller-chain design, these couplings provide excellent torque and angular misalignment capacities. Lubrication is required. Fasten to your shaft by tightening the set screws, which bite into the shaft to hold it.
A complete coupling consists of two hubs and one roller chain (each component sold separately). Complete couplings meet ANSI B29.23M-1995.
Optional covers retain grease lubrication and provide protection from abrasion and corrosion.
For technical drawings and 3-D models, click on a part number.
Steel Roller Chain | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Steel Hubs | Misalignment Capability | Roller Chain | Orange Nylon Plastic Covers | |||||||||||||
| O'all Lg. | OD | OD with Cover | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | No. | Standard | Each | Each | |||
| 2 9/16" | 3 3/64" | 4" | Continuous | 15/16" | 0000000 | 000000 | 5,000 | 2,410 | 0.012" | 2° | 40-2 | ANSI | 0000000 | 000000 | 0000000 | 000000 |
High-Speed Vibration-Damping Flexible Shaft Couplings
Use these gear-shaped couplings for high-speed and high-torque applications. A rubber center allows flexing so couplings can take on multiple types of misalignment while damping vibration and shock. With no metal-to-metal contact, there’s no need for lubrication. Fasten to your shafts by tightening the set screws, which bite into the shaft to hold it.
A complete coupling consists of two hubs and one center (each component sold separately).
Hubs have a keyway, except hubs for 1/4" and 3/8" shaft dia. do not have a keyway.
For technical drawings and 3-D models, click on a part number.
Centers | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Hubs | Misalignment Capability | ||||||||||||||
| O'all Lg. | OD | For Motion Type | Material | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Axial | Temp. Range, °F | Material | Each | ||
| 2 3/8" | 2 15/32" | Continuous | Sintered Steel | 15/16" | 000000 | 000000 | 7,600 | 120 | 0.01" | 1° | 0.125" | -30° to 275° | TPE Rubber | 0000000 | 00000 |
| 2 13/16" | 3 1/4" | Continuous | Cast Iron | 15/16" | 0000000 | 00000 | 7,600 | 240 | 0.015" | 1° | 0.125" | -30° to 275° | TPE Rubber | 0000000 | 00000 |
| 3 1/2" | 4" | Continuous | Cast Iron | 15/16" | 0000000 | 00000 | 6,000 | 450 | 0.015" | 1° | 0.125" | -30° to 275° | TPE Rubber | 0000000 | 00000 |