For Shaft Diameter For Shaft Diameter |
---|
|
For Motion Type For Motion Type |
---|
|
OD OD |
---|
|
|
|
More
For use with splined shafts, which are commonly found in gearboxes and pumps, these couplings are capable of transmitting more torque than couplings for round and keyed shafts. 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 fasten onto your shafts without damaging them. Tighten the clamping screws to secure.
Buna-N spiders provide good vibration damping and chemical 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.
Dia. | ||
---|---|---|
SAE Spline Size | (X) | (Y) |
A | 5/8" | 0.509" |
B | 7/8" | 0.754" |
B-B | 1" | 0.877" |
C | 1 1/4" | 1.087" |
D | 1 3/4" | 1.506" |
E | 1 3/4" | 1.506" |
Buna-N Rubber Spiders | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron Hubs | Misalignment Capability | |||||||||||||
O'all Lg. | OD | Pitch | Pressure Angle | For Motion Type | Choose an SAE Spline Size | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
2 3/16" | 2 7/64" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 000000 | 9,000 | 140 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
2 9/16" | 2 7/64" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 9,000 | 140 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 | |
2 7/8" | 2 17/32" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 7,000 | 315 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
3 1/2" | 2 17/32" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 7,000 | 315 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
4 1/4" | 3 21/64" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 5,000 | 790 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
4 1/2" | 3 3/4" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 5,000 | 1,240 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
Hytrel Rubber Spiders | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron Hubs | Misalignment Capability | |||||||||||||
O'all Lg. | OD | Pitch | Pressure Angle | For Motion Type | Choose an SAE Spline Size | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
2 3/16" | 2 7/64" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 000000 | 3,600 | 400 | 0.015" | 0.5° | -55° to 245° | 0000000 | 000000 | |
2 9/16" | 2 7/64" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 400 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
2 7/8" | 2 17/32" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
3 1/2" | 2 17/32" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
4 1/4" | 3 21/64" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 2,265 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
4 1/2" | 3 3/4" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 3,705 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
Polyurethane Spiders | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Iron Hubs | Misalignment Capability | |||||||||||||
O'all Lg. | OD | Pitch | Pressure Angle | For Motion Type | Choose an SAE Spline Size | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
2 3/16" | 2 7/64" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 000000 | 3,600 | 210 | 0.015" | 1° | -30° to 160° | 0000000 | 000000 | |
2 9/16" | 2 7/64" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 210 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
2 7/8" | 2 17/32" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 475 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
3 1/2" | 2 17/32" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 475 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
4 1/4" | 3 21/64" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 1,185 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
4 1/2" | 3 3/4" | 0.5" | 30° | Forward/Reverse, Start/Stop, Continuous | 000000 | 00000 | 3,600 | 1,860 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
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 | ||
*Hub for 5/8" shaft dia. does not have a keyway. | ||||||||||||
13/16" | 5/8" | Forward/Reverse, Start/Stop | 000000 | 00000 | 31,000 | 3 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
1 23/32" | 1 5/64" | Forward/Reverse, Start/Stop | 00000000 | 0000 | 18,000 | 26 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 | |
1 63/64" | 1 23/64" | Forward/Reverse, Start/Stop | 0000000 | 0000 | 14,000 | 43 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 | |
2 1/8" | 1 3/4" | Forward/Reverse, Start/Stop | 0000000 | 0000 | 11,000 | 90 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 | |
2 5/32" | 2 7/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 9,000 | 140 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 | |
2 1/2" | 2 7/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 9,000 | 140 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 | |
2 27/32" | 2 35/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 7,000 | 315 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
3 31/64" | 2 35/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 7,000 | 315 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
4 7/32" | 3 21/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 5,000 | 790 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
4 1/2" | 3 3/4" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 5,000 | 1,240 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
4 7/8" | 4 1/2" | Forward/Reverse, Start/Stop | 0000000 | 000000 | 5,000 | 1,725 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | |
5 11/32" | 5" | Forward/Reverse, Start/Stop | 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 | ||
*Hub for 5/8" shaft dia. does not have a keyway. | ||||||||||||
1 23/32" | 1 5/64" | Forward/Reverse, Start/Stop | 00000000 | 00000 | 18,000 | 50 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
1 63/64" | 1 23/64" | Forward/Reverse, Start/Stop | 0000000 | 0000 | 3,600 | 110 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
2 1/8" | 1 3/4" | Forward/Reverse, Start/Stop | 0000000 | 0000 | 3,600 | 225 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
2 5/32" | 2 7/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 400 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
2 1/2" | 2 7/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 400 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
2 27/32" | 2 35/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
3 31/64" | 2 35/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | |
4 7/32" | 3 21/64" | Forward/Reverse, Start/Stop | 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 | 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 | 0000000 | 000000 | 5,000 | 4,680 | 0.015" | 0.5° | -55° to 245° | 0000000 | 000000 | |
5 11/32" | 5" | Forward/Reverse, Start/Stop | 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 1/8" | 1 3/4" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 135 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
2 5/32" | 2 7/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 210 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
2 1/2" | 2 7/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 210 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
2 27/32" | 2 35/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 475 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
3 31/64" | 2 35/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 475 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
4 7/32" | 3 21/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 3,600 | 1,185 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | |
4 1/2" | 3 3/4" | Forward/Reverse, Start/Stop | 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 | 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 | 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 | 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 | 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 | 0000000 | 00000 | 5,900 | 2,180 | 0.03" | 2° | -30° to 200° | 0000000 | 00000 | 0000000 | 00000 |
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.
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.
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.
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.
Iron Hubs | Buna-N Spiders | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Set Screw | Misalignment Capability | ||||||||||||||
For Shaft Dia. | Overall Lg. | OD | For Motion Type | Material | Type | Thread Size | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
1/4"-5/8" | 1 23/32" | 1 5/64" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 00000 | 18,000 | 26 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
1/4"-3/4" | 1 63/64" | 1 23/64" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 00000 | 14,000 | 43 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 |
1/4"-7/8" | 2 1/8" | 1 3/4" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 00000 | 11,000 | 90 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 |
1/4"-1" | 2 5/32" | 2 7/64" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 00000 | 9,000 | 140 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 |
7/16"-1 1/8" | 2 1/2" | 2 7/64" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 9,000 | 140 | 0.015" | 1° | -40° to 212° | 0000000 | 0000 |
7/16"-1 3/16" | 2 27/32" | 2 35/64" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 7,000 | 315 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
7/16"-1 3/8" | 3 31/64" | 2 35/64" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 7,000 | 315 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
5/8"-1 5/8" | 4 7/32" | 3 21/64" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 5,000 | 790 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
5/8"-1 7/8" | 4 1/2" | 3 3/4" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 3/8"-16 | 00000000 | 00000 | 5,000 | 1,240 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
3/4"-2 1/8" | 4 7/8" | 4 1/2" | Forward/Reverse, Start/Stop | Sintered Iron | Cup Point | 1/2"-13 | 00000000 | 000000 | 5,000 | 1,725 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
3/4"-2 5/8" | 5 11/32" | 5" | Forward/Reverse, Start/Stop | Cast Iron | Cup Point | 1/2"-13 | 00000000 | 000000 | 4,200 | 2,340 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
Iron Hubs | Polyurethane Spiders | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Set Screw | Misalignment Capability | ||||||||||||||
For Shaft Dia. | Overall Lg. | OD | For Motion Type | Material | Type | Thread Size | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
1/4"-7/8" | 2 1/8" | 1 3/4" | Continuous | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 000000 | 3,600 | 135 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
1/4"-1" | 2 5/32" | 2 7/64" | Continuous | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 00000 | 3,600 | 210 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
7/16"-1 1/8" | 2 1/2" | 2 7/64" | Continuous | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 3,600 | 210 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
7/16"-1 3/16" | 2 27/32" | 2 35/64" | Continuous | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 3,600 | 475 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
7/16"-1 3/8" | 3 31/64" | 2 35/64" | Continuous | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 3,600 | 475 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
5/8"-1 5/8" | 4 7/32" | 3 21/64" | Continuous | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 3,600 | 1,185 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
5/8"-1 7/8" | 4 1/2" | 3 3/4" | Continuous | Sintered Iron | Cup Point | 3/8"-16 | 00000000 | 00000 | 3,600 | 1,860 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
Iron Hubs | Hytrel Spiders | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Set Screw | Misalignment Capability | ||||||||||||||
For Shaft Dia. | Overall Lg. | OD | For Motion Type | Material | Type | Thread Size | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | ||
1/4"-5/8" | 1 23/32" | 1 5/64" | Continuous | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 00000 | 18,000 | 50 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
1/4"-3/4" | 1 63/64" | 1 23/64" | Continuous | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 00000 | 3,600 | 110 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
1/4"-7/8" | 2 1/8" | 1 3/4" | Continuous | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 00000 | 3,600 | 225 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
1/4"-1" | 2 5/32" | 2 7/64" | Continuous | Sintered Iron | Cup Point | 1/4"-20 | 00000000 | 00000 | 3,600 | 400 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
7/16"-1 1/8" | 2 1/2" | 2 7/64" | Continuous | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 3,600 | 400 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
7/16"-1 3/16" | 2 27/32" | 2 35/64" | Continuous | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
7/16"-1 3/8" | 3 31/64" | 2 35/64" | Continuous | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
5/8"-1 5/8" | 4 7/32" | 3 21/64" | Continuous | Sintered Iron | Cup Point | 5/16"-18 | 00000000 | 00000 | 3,600 | 2,265 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
5/8"-1 7/8" | 4 1/2" | 3 3/4" | Continuous | Sintered Iron | Cup Point | 3/8"-16 | 00000000 | 00000 | 3,600 | 3,705 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |
3/4"-2 1/8" | 4 7/8" | 4 1/2" | Continuous | Sintered Iron | Cup Point | 1/2"-13 | 00000000 | 000000 | 5,000 | 4,680 | 0.015" | 0.5° | -55° to 245° | 0000000 | 000000 |
3/4"-2 5/8" | 5 11/32" | 5" | Continuous | Cast Iron | Cup Point | 1/2"-13 | 00000000 | 000000 | 4,200 | 6,225 | 0.015" | 0.5° | -55° to 245° | 0000000 | 000000 |
Also known as Schmidt couplings, these handle higher angular misalignment than other three-piece couplings. Good for applications with varying shaft misalignment, they're commonly used with conveyor rollers and roller feeds in printing and packaging machines. Couplings clamp evenly around the shaft for a mar-free hold. Tighten the clamping screws to secure. They allow zero backlash (no play) and never need lubrication.
A complete coupling consists of two hubs and one disc (each component sold separately). Hubs are aluminum for light weight and good corrosion resistance.
Hubs for 1/2" shaft dia. and above have a keyway. Hubs for metric sizes do not have a keyway (unless noted).
For technical drawings and 3-D models, click on a part number.
Acetal Plastic Discs | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
6082 Aluminum Hubs | Misalignment Capability | ||||||||||||
Overall Lg. | OD | For Motion Type | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Axial | Temp. Range, °F | Each | ||
•Hubs for 10mm and 15mm shaft dia. have a keyway. | |||||||||||||
5/8" | 47/64" | Forward/Reverse, Start/Stop | 0000000 | 000000 | 12,000 | 6 | 0.013" | 1.5° | 0.01" | -40° to 170° | 00000000 | 000000 | |
1" | 63/64" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 11,000 | 13 | 0.019" | 1.5° | 0.014" | -40° to 170° | 00000000 | 00000 | |
1 1/8" | 1 15/32" | Forward/Reverse, Start/Stop | 00000000 | 00000 | 8,000 | 45 | 0.028" | 1.5° | 0.021" | -40° to 170° | 00000000 | 00000 | |
1 3/4" | 2 3/16" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 6,000 | 150 | 0.041" | 1.5° | 0.031" | -40° to 170° | 00000000 | 00000 | |
2 3/16" | 2 15/16" | Forward/Reverse, Start/Stop | 0000000 | 00000 | 5,000 | 360 | 0.055" | 1.5° | 0.042" | -40° to 170° | 00000000 | 00000 |
Connect splined shafts to keyed shafts. These couplings are commonly used to connect hydraulic pumps, compressors, and other heavy duty equipment, which often have splined shafts, to electric motors and other components that often have keyed shafts. They have a splined hub on one side and a keyed hub on the other. A spider cushion in the middle damps vibration, absorbs shock loads, and adjusts for misalignment. Because the hubs interlock with the spider, these couplings will continue to work even if the spider breaks or wears away. This fail-safe design gives you time to shut down your power source before damage occurs to other components. Lubrication is not required.
A complete coupling consists of two hubs and one spider. All components are sold separately.
Buna-N spiders are best for high-speed systems and jobs with frequent starting, stopping, and reversing. The most commonly used spider material, Buna-N absorbs vibration better than other materials but cannot handle as much torque. It won't break down when exposed to oil and chemicals.
Use polyurethane spiders for high-torque, continuous-motion applications where vibration is a concern. They absorb vibration better than Hytrel spiders but are not as resistant to oil and chemicals. They're not for use in applications with frequent starting, stopping, and reversing.
Hytrel spiders handle the highest torque of any of our spiders and have the best resistance to oil and chemicals. However, they don't compensate for as much misalignment and are not recommended for applications with frequent starting, stopping, and reversing.
Dia. | ||
---|---|---|
SAE Spline Size | (X) | (Y) |
A | 5/8" | 0.509" |
B | 7/8" | 0.754" |
B-B | 1" | 0.877" |
C | 1 1/4" | 1.087" |
D | 1 3/4" | 1.506" |
E | 1 3/4" | 1.506" |
Buna-N Rubber Spiders | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Splined Iron Hubs | Keyed Iron Hubs | Misalignment Capability | ||||||||||||||
O'all Lg. | OD | Pitch | Pressure Angle | Choose an SAE Spline Size | Each | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | |||
2 3/16" | 2 7/64" | 0.5" | 30° | 00000000 | 000000 | 00000000 | 000000 | 9,000 | 140 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | ||
2 7/8" | 2 17/32" | 0.5" | 30° | 00000000 | 00000 | 00000000 | 00000 | 7,000 | 315 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 | ||
4 1/2" | 3 3/4" | 0.5" | 30° | 00000000 | 00000 | 00000000 | 00000 | 5,000 | 1,240 | 0.015" | 1° | -40° to 212° | 0000000 | 00000 |
Polyurethane Spiders | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Splined Iron Hubs | Keyed Iron Hubs | Misalignment Capability | ||||||||||||||
O'all Lg. | OD | Pitch | Pressure Angle | Choose an SAE Spline Size | Each | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | |||
2 3/16" | 2 7/64" | 0.5" | 30° | 00000000 | 000000 | 00000000 | 000000 | 3,600 | 210 | 0.015" | 1° | -30° to 160° | 0000000 | 000000 | ||
2 7/8" | 2 17/32" | 0.5" | 30° | 00000000 | 00000 | 00000000 | 00000 | 3,600 | 475 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 | ||
4 1/2" | 3 3/4" | 0.5" | 30° | 00000000 | 00000 | 00000000 | 00000 | 3,600 | 1,860 | 0.015" | 1° | -30° to 160° | 0000000 | 00000 |
Hytrel Rubber Spiders | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Splined Iron Hubs | Keyed Iron Hubs | Misalignment Capability | ||||||||||||||
O'all Lg. | OD | Pitch | Pressure Angle | Choose an SAE Spline Size | Each | For Shaft Dia. | Each | Max. Speed, rpm | Max. Torque, in.-lbs. | Parallel | Angular | Temp. Range, °F | Each | |||
2 3/16" | 2 7/64" | 0.5" | 30° | 00000000 | 000000 | 00000000 | 000000 | 3,600 | 400 | 0.015" | 0.5° | -55° to 245° | 0000000 | 000000 | ||
2 7/8" | 2 17/32" | 0.5" | 30° | 00000000 | 00000 | 00000000 | 00000 | 3,600 | 790 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 | ||
4 1/2" | 3 3/4" | 0.5" | 30° | 00000000 | 00000 | 00000000 | 00000 | 3,600 | 3,705 | 0.015" | 0.5° | -55° to 245° | 0000000 | 00000 |