About Shaft Couplings
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About Shaft Collars
Shaft collars are useful for holding and positioning components on a shaft. They can also serve as mechanical stops and stroke limiters.
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Two-Piece Shaft Coupling Bridges
When your shafts are not close enough to use standard couplings, these have the length to bridge the gap. Install them anywhere on a shaft without removing components or having access to the ends of the shaft. Tighten the clamping screws to secure. Good for high-torque applications, rigid couplings connect two shafts that are aligned, allowing for no relative movement between the shafts.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | Overall Lg. | OD | Max. Speed, rpm | Max. Torque, in.-lbs. | For Motion Type | Each | |
Cast Iron | |||||||
|---|---|---|---|---|---|---|---|
For Keyed Shafts | |||||||
| 3" | 12" | 7 1/4" | 2,545 | 29,000 | Forward/Reverse, Start/Stop, Continuous | 0000000 | 000000000 |
Clamping Shaft Collars
These metal collars are stronger than plastic shaft collars. They clamp evenly around the shaft to create a strong, mar-free hold. To use, slide onto your shaft and tighten the clamping screw to secure.
Black-oxide steel collars have some corrosion resistance. Zinc-plated steel collars have moderate corrosion resistance. Chrome-plated steel collars have moderate corrosion resistance with a bright finish.
Aluminum collars are lightweight and have good corrosion resistance. 303 stainless steel collars have excellent corrosion resistance. 316 stainless steel collars have excellent corrosion and chemical resistance.
For technical drawings and 3-D models, click on a part number.
Clamping Screw | ||||||
|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |
Black-Oxide 1215 Carbon Steel | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 000000 |
Zinc-Plated 1215 Carbon Steel | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 00000 |
Chrome-Plated 1215 Carbon Steel | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 00000 |
2024 Aluminum | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 00000 |
303 Stainless Steel  | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 1 | 00000000 | 000000 |
316 Stainless Steel | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 000000 |
Washdown Clamping Shaft Collars
Suitable for use in washdown applications, these plastic collars also offer good chemical resistance. They clamp evenly around the shaft to create a strong, mar-free hold. To use, slide onto your shaft and tighten the clamping screw to secure.
Acetal collars have a naturally slippery surface and resist swelling when exposed to moisture.
For technical drawings and 3-D models, click on a part number.
Extra-Grip Clamping Shaft Collars
With larger clamping screws than those found on standard clamping collars, these provide a stronger grip on your shaft without using additional screws. They clamp evenly around the shaft to create a strong, mar-free hold. To use, slide onto your shaft and tighten the clamping screw to secure. Collars are black-oxide steel, which offers some corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Clamping Screw | Black-Oxide 1026 Carbon Steel | |||||
|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |
| 3" | 4 3/4" | 1" | Socket Head Screw | 1 | 0000000 | 000000 |
Quick-Connect Clamping Shaft Collars
Internal ball bearings allow you to slide a collar onto your shaft in one direction and then automatically lock the collar in place in the opposite direction. To adjust or remove, pull the end ring back to release the hold.
Zinc-plated steel collars have some corrosion resistance. 303 stainless steel collars have excellent corrosion resistance. ABS plastic collars are durable, lightweight, and corrosion resistant.
For technical drawings and 3-D models, click on a part number.
Quick-Release Clamping Shaft Collars
Installing and removing a collar is as easy as pushing down and lifting up a clamp lever. Collars clamp evenly around the shaft to create a strong, mar-free hold. All have a clamping screw to adjust lever tension. Made of anodized aluminum, they are lightweight with good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Clamping Screw | Black Anodized 6061 Aluminum | |||||
|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |
| 3" | 4 3/4" | 3/4" | Socket Head Screw | 1 | 00000000 | 0000000 |
Set Screw Shaft Collars
Keep these shaft collars in place by tightening their set screw into the shaft. The tip of the screw digs in for a secure hold, but will mar the shaft’s surface. For maximum holding power, make sure the set screw material is harder than your shaft material. Use these shaft collars to position and retain power transmission components such as sprockets, pulleys, and bearings. You can also use them to limit the movement of a shaft.
Carbon steel collars are strong and wear resistant. Collars with a black-oxide finish have some corrosion resistance, but only in dry environments. Their dark color can be useful for matching other parts in your system. Collars with a zinc-plated finish have an outer layer of zinc that protects the steel from rust and extends the life of the collar. 303 stainless steel collars are corrosion resistant and highly machinable.
316 stainless steel collars are the most corrosion resistant while still being nearly as strong as steel collars. You can expose them to salt water, chlorine solutions, and chemicals without rusting.
Aluminum collars are lightweight and have good corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Set Screw | ||||||
|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |
Black-Oxide 1215 Carbon Steel | ||||||
| 3" | 4 1/4" | 1 1/8" | Hex Socket | 1 | 0000000 | 000000 |
Zinc-Plated 1215 Carbon Steel | ||||||
| 3" | 4" | 1 1/8" | Hex Socket | 1 | 0000000 | 00000 |
303 Stainless Steel | ||||||
| 3" | 4" | 1 1/8" | Hex Socket | 1 | 0000000 | 000000 |
316 Stainless Steel | ||||||
| 3" | 4" | 1 1/8" | Hex Socket | 1 | 0000000 | 000000 |
6061 Aluminum | ||||||
| 3" | 4" | 1 1/8" | Hex Socket | 1 | 0000000 | 00000 |
Washdown Set Screw Shaft Collars
Made of chemical-resistant nylon, these collars are suitable for washdown applications. Slide them onto an unhardened shaft and tighten the set screw, which bites into the shaft to hold it.
For technical drawings and 3-D models, click on a part number.
Set Screw | ||||||
|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |
White Nylon Plastic | ||||||
| 3" | 4 1/4" | 1 1/8" | Hex Socket | 1 | 00000000 | 0000000 |
Clamping Two-Piece Shaft Collars
These metal collars are stronger than plastic shaft collars. The two-piece design allows you to install them anywhere on a shaft without removing components or having access to the ends of the shaft. Collars clamp evenly around the shaft to create a strong, mar-free hold. Tighten the clamping screws to secure.
Black-oxide steel collars have some corrosion resistance. Zinc-plated steel and chrome-plated steel collars have moderate corrosion resistance with a bright finish. Aluminum collars are lightweight and have good corrosion resistance. 303 stainless steel collars have excellent corrosion resistance. 316 stainless steel collars have excellent corrosion and chemical resistance.
For technical drawings and 3-D models, click on a part number.
Clamping Screw | ||||||
|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |
Black-Oxide 1215 Carbon Steel | ||||||
| 3" | 4 1/2" | 3/4" | Socket Head Screw | 2 | 00000000 | 000000 |
Black-Oxide 1026 Carbon Steel | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 2 | 0000000 | 00000 |
Zinc-Plated 1215 Carbon Steel | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 2 | 0000000 | 00000 |
| 3" | 4 1/2" | 3/4" | Socket Head Screw | 2 | 0000000 | 00000 |
Chrome-Plated 1215 Carbon Steel | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 2 | 00000000 | 00000 |
2024 Aluminum | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 2 | 00000000 | 00000 |
| 3" | 4 1/2" | 3/4" | Socket Head Screw | 2 | 00000000 | 00000 |
303 Stainless Steel | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 2 | 00000000 | 000000 |
| 3" | 4 1/2" | 3/4" | Socket Head Screw | 2 | 00000000 | 000000 |
316 Stainless Steel | ||||||
| 3" | 4 1/4" | 7/8" | Socket Head Screw | 2 | 0000000 | 000000 |
| 3" | 4 1/2" | 3/4" | Socket Head Screw | 2 | 0000000 | 000000 |
Keyway | Clamping Screw | |||||||
|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | Wd. | Dp. | Type | No. Included | Each | |
Black-Oxide 1215 Carbon Steel | ||||||||
| 3" | 4 1/4" | 7/8" | 3/4" | 11/32" | Socket Head Screw | 2 | 0000000 | 0000000 |
Washdown Clamping Two-Piece Shaft Collars
Suitable for use in washdown applications, these plastic collars also offer good chemical resistance. The two-piece design allows you to install them anywhere on a shaft without removing components or having access to the ends of the shaft. Collars clamp evenly around the shaft to create a strong, mar-free hold. Tighten the clamping screws to secure.
Acetal collars have a naturally slippery surface and resist swelling when exposed to moisture.
For technical drawings and 3-D models, click on a part number.
Extra-Grip Clamping Two-Piece Shaft Collars
With larger screws than those found on standard clamping collars, these provide a stronger grip on your shaft without using additional screws. The two-piece design allows you to install them anywhere on a shaft without removing components or having access to the ends of the shaft. Collars clamp evenly around the shaft to create a strong, mar-free hold. Tighten the clamping screws to secure.
Black-oxide steel collars offer some corrosion resistance.
303 stainless steel collars have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Keyway | Clamping Screw | |||||||
|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | Wd. | Dp. | Type | Number Included | Each | |
Black-Oxide 1026 Carbon Steel | ||||||||
| 3" | 4 3/4" | 1" | 3/4" | 3/8" | Socket Head Screw | 2 | 00000000 | 0000000 |
Clamping Two-Piece Shaft Collars with Wrench Flats
Use a wrench to rotate your drive shaft without marring or gouging the shaft. Fasten one of these collars onto your shaft, position a wrench on the collar’s wrench flats, and then rotate the entire shaft/collar assembly to adjust the shaft. The two-piece design allows you to install these collars anywhere on a shaft without removing components or having access to the ends of the shaft. Tighten the clamping screws to secure.
Black-oxide steel collars have some corrosion resistance. Aluminum collars are lightweight and strong. 303 stainless steel collars have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Set Screw Two-Piece Shaft Collars
Tighten the set screw to bite into an unhardened shaft for a secure hold. The two-piece design allows you to install these collars anywhere on a shaft without removing components or having access to the ends of the shaft. Clamping screws provide extra grip.
Carbon steel collars are strong and wear resistant. Their black-oxide finish is somewhat corrosion resistant, but only in dry environments. Their dark color can be useful for matching other parts in your system.
For technical drawings and 3-D models, click on a part number.
Set Screw | Clamping Screw | |||||||
|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | Type | No. Included | Type | No. Included | Each | |
Black-Oxide 1026 Carbon Steel | ||||||||
| 3" | 4 1/4" | 7/8" | Hex Socket | 1 | Socket Head Screw | 2 | 0000000 | 000000 |
Hinged Shaft Collars
Offering the benefits of a two-piece collar in a one-piece design, these collars swing open for positioning then close anywhere on your shaft. Tighten the clamping screw to secure. The screw is captive so it won’t fall out, making these collars good for use in tight areas where you can’t hold the screw in place. Collars clamp evenly around your shaft to create a strong, mar-free hold.
Black-oxide steel collars have some corrosion resistance. 303 stainless steel collars have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Flange-Mount Shaft Collars
Three tapped counterbored holes and three unthreaded holes provide mounting flexibility. Collars clamp evenly around the shaft to create a strong, mar-free hold. To use, slide onto your shaft and tighten the clamping screws to secure.
Collars with keyway have a standard ANSI keyway for use with keyed shafts, keys, and key stock.
Black-oxide steel collars are stronger than aluminum and stainless steel collars. They have some corrosion resistance. Aluminum collars are lightweight and have good corrosion resistance. 303 stainless steel collars have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Flange | Keyway | Clamping Screw | Counterbored Mounting Holes | Unthreaded Mounting Holes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Wd. | OD | Thick. | Wd. | Dp. | Type | No. Included | Mounting Fasteners Included | Thread Size | No. of | Dia. | No. of | Each | |
Black-Oxide 1117 Carbon Steel | |||||||||||||||
| 3" | 4 1/2" | 1 3/8" | 6 11/32" | 1/2" | 3/4" | 21/64" | Socket Head Screw | 2 | No | 3/8"-16 | 3 | 3/8" | 3 | 0000000 | 0000000 |
2024 Aluminum | |||||||||||||||
| 3" | 4 1/2" | 1 3/8" | 6 11/32" | 1/2" | 3/4" | 21/64" | Socket Head Screw | 2 | No | 3/8"-16 | 3 | 3/8" | 3 | 0000000 | 000000 |
303 Stainless Steel | |||||||||||||||
| 3" | 4 1/2" | 1 3/8" | 6 11/32" | 1/2" | 3/4" | 21/64" | Socket Head Screw | 2 | No | 3/8"-16 | 3 | 3/8" | 3 | 0000000 | 000000 |
Face-Mount Shaft Collars
Two tapped holes on the face of these collars allow you to fasten them to gears, pulleys, and sprockets. Collars clamp evenly around the shaft to create a strong, mar-free hold. To use, slide onto your shaft and tighten the clamping screw to secure.
Black-oxide steel collars have some corrosion resistance. 303 stainless steel collars have excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.