System of Measurement System of Measurement |
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For Shaft Diameter For Shaft Diameter | Show |
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For Shaft Diameter For Shaft Diameter | Hide |
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Material Material |
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Dynamic Radial Load Capacity Dynamic Radial Load Capacity |
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Lubrication Lubrication |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Lubricant Lubricant |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Lubrication Method Lubrication Method |
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Mounted Bearing Type Mounted Bearing Type |
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![]() | Base Mount |
About Linear Bearings
More
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.
More
About Plain Bearings
More
About Shaft Couplings
More
Oil-Embedded Sleeve Bearings

Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface. They are also known as Oilite® bearings.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
For Housing ID | Lg. | Dynamic Radial Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
For 2 1/2" Shaft Dia. | |||||||
---|---|---|---|---|---|---|---|
2 3/4" | 2" | 10,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
2 3/4" | 2 1/2" | 12,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
2 3/4" | 3" | 15,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
2 7/8" | 2 1/4" | 11,250 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
2 7/8" | 2 1/2" | 12,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
2 7/8" | 3" | 15,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
3" | 2" | 10,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
3" | 2 1/2" | 12,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
3" | 3" | 15,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
3" | 4" | 20,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
High-Load Oil-Embedded Sleeve Bearings

Increased iron content makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings; however they operate at lower speeds. Startup friction causes them to release a thin layer of oil on the bearing’s surface. Color is silver because of the iron. These bearings are also magnetic due to the high iron content.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
For Housing ID | Lg. | Dynamic Radial Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
For 2 1/2" Shaft Dia. | |||||||
---|---|---|---|---|---|---|---|
3" | 4" | 17,800 lbs. @ 30 rpm | Lubricated | SAE 90 Oil | -15° to 300° | 00000000 | 000000 |
High-Temperature Dry-Running Sleeve Bearings
Graphite provides a layer of dry lubrication that operates in high-temperature environments.
841 bearing bronze bearings are porous and embedded with graphite for continuous lubrication.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.

For Housing ID | Lg. | Dynamic Radial Load Capacity | Lubrication Method | Temperature Range, °F | Each | |
841 Bearing Bronze | ||||||
---|---|---|---|---|---|---|
For 2 1/2" Shaft Dia. | ||||||
3" | 4" | 16,000 lbs. @ 30 rpm | Embedded | -50° to 700° | 00000000 | 0000000 |
Multipurpose Dry-Running Sleeve Bearings
Reinforced with polyester fabric, these plastic bearings have load and speed capabilities comparable to metal bearings. Bearings resist corrosion in outdoor and saltwater environments.
Bearings with seals block out dust and contaminants.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.

For Housing ID | Lg. | Dynamic Radial Load Capacity | Color | Temperature Range, °F | Each | |
For 2 1/2" Shaft Dia. | ||||||
---|---|---|---|---|---|---|
2 3/4" | 2 1/2" | 7,950 lbs. @ 30 rpm | Blue | -40° to 150° | 0000000 | 000000 |

For Housing ID | Lg. | Dynamic Radial Load Capacity | Color | Temperature Range, °F | Each | |
For 2 1/2" Shaft Dia. | ||||||
---|---|---|---|---|---|---|
3 1/4" | 3 3/4" | 11,900 lbs. @ 30 rpm | Blue | -40° to 150° | 0000000 | 0000000 |
Multipurpose Sleeve Bearings

These 932 bearing bronze bearings are strong, wear resistant, and excellent at handling shock loads. They’re sometimes called 660 leaded bronze bearings.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
Oil-Embedded Thrust Bearings

Startup friction causes these porous bronze bearings to release a thin layer of oil on the bearing’s surface. They are also known as Oilite® bearings.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
OD | Thick. | Dynamic Thrust Load Capacity | Lubrication | Lubricant | Temperature Range, °F | Each | |
For 2 1/2" Shaft Dia. | |||||||
---|---|---|---|---|---|---|---|
3 1/4" | 1/8" | 6,600 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
Multipurpose Thrust Bearings

These 932 bearing bronze bearings are strong, wear resistant, and excellent at handling shock loads. They’re sometimes called 660 leaded bronze bearings.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
OD | Thick. | Dynamic Thrust Load Capacity | Lubrication | Temperature Range, °F | Each | |
932 Bearing Bronze | ||||||
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For 2 1/2" Shaft Dia. | ||||||
3 1/4" | 1/8" | Not Rated | Required | -350° to 450° | 00000000 | 000000 |
Mounted Sleeve Bearings

A reliable classic—these babbitt bearings are strong and corrosion resistant.
Bearings with split housing have a removable section for easy maintenance.
Note: Dynamic load capacity is the maximum load a bearing can withstand at a given shaft speed. If your application’s load and speed requirements are below the values listed, the bearing will work.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | |||||||||||||
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For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Bearing Wd. | Hole Lg. | Hole Wd. | Hole Ctr.-to-Ctr. | Dynamic Radial Load Cap. | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Babbitt Bearings with Split Cast Iron Housing | ||||||||||||||
2 1/2" | 2 1/8" | 4 3/16" | 8 7/8" | 5" | 5" | 1" | 5/8" | 7" | 1,730 lbs. @ 30 rpm | 0° to 130° | Fixed Alignment | Required | 0000000 | 0000000 |
Quick-Disconnect (QD) Bushings


The screw connections on these bushings easily mate to compatible quick-disconnect sprockets and pulleys. Bushings fit quick-disconnect (QD) sprockets and pulleys of the same bushing style. As you tighten the included screws, the bushing grips the shaft and pulls it into the sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Taper-Lock Bushings

Mount these hubless bushings flush into your sprocket or pulley for a slim profile with no protruding screws. They are for use with taper-lock sprockets of the same bushing style. As you tighten the included set screws, the bushing grips the shaft and pulls it into your sprocket or pulley.
For technical drawings and 3-D models, click on a part number.
Keyway | |||||||||
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For Shaft Dia. | Overall Wd. | Wd. | Dp. | Taper | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
2517 Style Bushing | |||||||||
2 1/2" | 1 3/4" | 5/8" | 3/16" | 8° | 430 | Steel | Machine Key, Set Screws | 000000000 | 000000 |
Self-Adjusting Spring Bushings

A toothed slot lets these bushings contract for insertion into the bore of your sprocket or pulley and then expand for a snug fit. Made of spring steel, they flex under stress and shock and can handle oscillating or slow rotational motion.
For technical drawings and 3-D models, click on a part number.
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 | ||||||
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For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |
Black-Oxide 1215 Carbon Steel | ||||||
2 1/2" | 3 1/2" | 1" | Hex Socket | 1 | 0000000 | 000000 |
Zinc-Plated 1215 Carbon Steel | ||||||
2 1/2" | 3 1/2" | 1" | Hex Socket | 1 | 0000000 | 00000 |
303 Stainless Steel | ||||||
2 1/2" | 3 1/2" | 1" | Hex Socket | 1 | 0000000 | 000000 |
316 Stainless Steel | ||||||
2 1/2" | 3 1/2" | 1" | Hex Socket | 1 | 0000000 | 000000 |
6061 Aluminum | ||||||
2 1/2" | 3 1/2" | 1" | Hex Socket | 1 | 0000000 | 00000 |
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. 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 | ||||||
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For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |
Black-Oxide 1215 Carbon Steel | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 000000 |
Zinc-Plated 1215 Carbon Steel | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 00000 |
2024 Aluminum | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 00000 |
303 Stainless Steel | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 000000 |
316 Stainless Steel | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 1 | 0000000 | 000000 |
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 | |
2 1/2" | 4 3/4" | 3/4" | Socket Head Screw | 1 | 0000000 | 0000000 |
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 | |
2 1/2" | 4 1/4" | 1" | Socket Head Screw | 1 | 0000000 | 000000 |
Ultra-Grip Clamping Shaft Collars

An embedded sleeve squeezes the shaft as you tighten the clamping screws, allowing these collars to handle up to three times the thrust load of standard collars. Collars clamp evenly around the shaft for a mar-free hold. To use, slide onto your shaft and tighten the clamping screws 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 1215 Carbon Steel | |||||
---|---|---|---|---|---|---|
For Shaft Dia. | OD | Wd. | Type | No. Included | Each | |
2 1/2" | 5" | 1 3/4" | Socket Head Screw | 3 | 000000 | 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 1026 Carbon Steel | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 2 | 0000000 | 000000 |
Zinc-Plated 1215 Carbon Steel | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 2 | 0000000 | 00000 |
Chrome-Plated 1215 Carbon Steel | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 2 | 0000000 | 00000 |
2024 Aluminum | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 2 | 00000000 | 00000 |
303 Stainless Steel | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 2 | 00000000 | 000000 |
316 Stainless Steel | ||||||
2 1/2" | 3 3/4" | 7/8" | Socket Head Screw | 2 | 0000000 | 000000 |
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 | ||||||||
2 1/2" | 4 1/4" | 1" | 5/8" | 5/16" | 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.
303 stainless steel collars are corrosion resistant and highly machinable.
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 | |||||||||||||||
2 1/2" | 4" | 1 3/8" | 5 23/32" | 1/2" | 5/8" | 9/32" | Socket Head Screw | 2 | No | 3/8"-16 | 3 | 3/8" | 3 | 0000000 | 0000000 |
2024 Aluminum | |||||||||||||||
2 1/2" | 4" | 1 3/8" | 5 23/32" | 1/2" | 5/8" | 9/32" | Socket Head Screw | 2 | No | 3/8"-16 | 3 | 3/8" | 3 | 0000000 | 000000 |
303 Stainless Steel | |||||||||||||||
2 1/2" | 4" | 1 3/8" | 5 23/32" | 1/2" | 5/8" | 9/32" | 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.
High-Grip Clamping Shaft Couplings

These couplings have the gripping strength to handle higher torque than most other couplings. Couplings clamp evenly around the shaft to create a mar-free hold. Slide onto the end of your shaft and 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 | |
Steel | |||||||
---|---|---|---|---|---|---|---|
For Round Shafts | |||||||
2 1/2" | 8" | 4 1/4" | 3,500 | 13,690 | Forward/Reverse, Start/Stop, Continuous | 000000 | 0000000 |
High-Grip Two-Piece Shaft Couplings

These couplings have the gripping strength to handle higher torque than most other couplings. 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 | |
Steel | |||||||
---|---|---|---|---|---|---|---|
For Round Shafts | |||||||
2 1/2" | 8" | 4 1/4" | 3,500 | 16,440 | Forward/Reverse, Start/Stop, Continuous | 0000000 | 0000000 |
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 | |||||||
2 1/2" | 9 7/8" | 6 1/4" | 2,965 | 17,000 | Forward/Reverse, Start/Stop, Continuous | 0000000 | 0000000 |
Keyless Locking Shaft Couplings for Overhung Loads

Support the weight of a motor and transfer torque to another shaft at the same time with these couplings. Often used to hang motors from conveyor belts and other driven equipment, or to connect long sections of shafts, these couplings eliminate the need for support brackets. Use a torque arm to prevent hanging motors from spinning.
The clamping screws on the coupling face squeeze two outer collars against an inner ring, pressing it tight against shafts to lock them together. This ring-locking mechanism leaves no room for backlash, meaning that all of the turning force created by the motor is passed on to the second shaft. These couplings grip shafts of any shape, so you can install them onto existing keyways and splines without using a key.
To install these couplings, use a torque wrench to tighten each screw to the fastener tightening torque listed for each coupling size. To remove, gradually loosen each screw in sequence until you can slide the coupling on the shaft. Warning: Do not remove any clamping screws from the coupling until the outer collars are separated from the inner ring. The ring is under tension, and a sudden release of the collars can cause serious injury.
Overhung load capacity is the amount of downward force that a coupling can withstand from a motor or other object that it is supporting. To calculate the overhung load, measure the distance from the center of the coupling to the center of gravity of the motor. Multiply that distance by the combined weight of the motor and the portion of the shaft between the coupling and the motor. Do not exceed the overhung load capacity for a coupling.
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. | Fastener Tightening Torque, in.-lbs. | Overhung Load Cap., in.-lbs. | For Motion Type | Each | |
Steel | |||||||||
---|---|---|---|---|---|---|---|---|---|
2 1/2" | 3 1/16" | 4 3/4" | 7,500 | 49,040 | 264 | 12,260 | Forward/Reverse, Start/Stop, Continuous | 0000000 | 0000000 |
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.
Buna-N spiders provide good vibration damping and chemical resistance. Hytrel spiders provide fair vibration damping and excellent chemical resistance.
For technical drawings and 3-D models, click on a part number.
Linear and Rotary Ball Bearings


Engineered for simultaneous linear and rotary motion, these bearings are used with round end-supported shafts. The fixed-alignment design is for use where shaft misalignment is unlikely. To install, slide bearings into a housing (not included) and secure with two retaining rings (sold individually).
Bearings without a maximum stroke length are only limited by the length of shaft they're used on.
For technical drawings and 3-D models, click on a part number.
Bearings | External Retaining Rings | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | Overall Lg. | For Housing ID | Retaining Ring Groove End-to-End Lg. | Dynamic Load Capacity, lbs. | Dynamic Rotary Load Capacity | Max. Speed, rpm | Max. Temperature, ° F | For Shaft Material | Each | Each | ||
Fixed Alignment | ||||||||||||
Steel Bearings without End Seals | ||||||||||||
2 1/2" | 5" | 3.7500" - 3.7510" | 3.99" | 1,800 | 750 lbs. @ 500 rpm | 2,400 | 200° | Stainless Steel, Steel | 0000000 | 0000000 | 0000000 | 000000 |