About Plain Bearings
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About Ball and Roller Bearings
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Set Screw Collar Ball Bearings
Slip these bearings onto a shaft and secure with the included set screws, no special tools required. All have an extended inner ring for additional shaft support.
Bearings with a black-oxide steel ring have some corrosion resistance.
Sealed bearings block out dust and other contaminants better than shielded bearings.
Bearings with a retaining ring have a removable retaining ring that holds the bearing inside a housing.
For technical drawings and 3-D models, click on a part number.
Inner Ring | Retaining Ring | Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number  | For Shaft Dia. | For Housing ID | Wd. | OD | Wd. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | ABEC Rating | Each | |
Sealed (Lubricated) | ||||||||||||||
Black-Oxide Steel—With Retaining Ring | ||||||||||||||
| ER36 | 2 1/4" | 4.331" | 1 1/4" | 2.9844" | 2.5625" | 4 37/64" | 0.09375" | 11,750 | 8,150 | 3,000 | -20° to 220° | ABEC-1 | 0000000 | 0000000 |
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 1/4" Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 2 5/8" | 2" | 9,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
| 2 3/4" | 1 1/2" | 6,750 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 3/4" | 2" | 9,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 3/4" | 3" | 13,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 00000 |
| 2 3/4" | 4" | 18,000 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 0000000 | 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.
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.
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 1/4" Shaft Dia. | ||||||
|---|---|---|---|---|---|---|
| 2 1/2" | 2 1/4" | 7,150 lbs. @ 30 rpm | Blue | -40° to 150° | 0000000 | 000000 |
| For Housing ID | Lg. | Dynamic Radial Load Capacity | Color | Temperature Range, °F | Each | |
For 2 1/4" Shaft Dia. | ||||||
|---|---|---|---|---|---|---|
| 3" | 3 1/2" | 11,100 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.
| For Housing ID | Lg. | Dynamic Radial Load Capacity | Lubrication | Temperature Range, °F | Each | |
932 Bearing Bronze Bearings | ||||||
|---|---|---|---|---|---|---|
For 2 1/4" Shaft Dia. | ||||||
| 2 3/4" | 2" | 18,000 lbs. @ 30 rpm | Required | -350° to 450° | 0000000 | 000000 |
| 2 3/4" | 3" | 27,000 lbs. @ 30 rpm | Required | -350° to 450° | 00000000 | 00000 |
| 2 3/4" | 4" | 36,000 lbs. @ 30 rpm | Required | -350° to 450° | 0000000 | 00000 |
Tapered-Roller Bearings
Found anywhere from machine tool spindles to conveyor rollers, these bearings have a two-piece design that allows for adjustment.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | Thrust Load Cap., lbs. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | For Housing ID | Wd. | Bearing Trade Number | Dynamic | Static | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Each | |
Steel Ring | ||||||||||||
Open | ||||||||||||
| 2 1/4" | 3 13/16" | 5/8" | 387A/382A | 4,900 | 24,100 | 2,950 | 24,900 | 2,000 | Required | -60° to 200° | 0000000 | 000000 |
Needle-Roller Thrust Bearings
Thinner rollers allow these bearings to fit in tighter spaces than tapered-roller thrust bearings. Because of the large contact area between the rollers and washers (not included), these bearings are great for medium to heavy duty, low-friction jobs. For use on hardened and ground surfaces.
Washers allow you to use the bearing on unhardened and unground surfaces.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Thick. | Dynamic | Static | Max. Speed, rpm | Lubrication | For Shaft Surface Smoothness (Ra), microns | Temp. Range, °F | Each | |
Steel Rollers | ||||||||||
Open | ||||||||||
| 2 1/4" | 3" | 5/64" | 5,550 | 32,000 | 5,600 | Required | 0.2 | 0° to 240° | 0000000 | 000000 |
Washers for Needle-Roller Thrust Bearings
Adapt needle-roller thrust bearings to use on unhardened, unground surfaces.
For technical drawings and 3-D models, click on a part number.
Mounted Ball Bearings
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Bearings with a set screw secure to shafts without using a collar. They let shafts rotate in both directions, so they’re good for applications where you need to reverse. However, the set screw will leave some marring on the shaft.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Hole Lg. | Hole Wd. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
| 2 1/4" | 2 3/4" | 5 15/16" | 9 1/2" | 2 15/16" | 1" | 5/8" | 7 1/4" | 11,700 | 8,150 | 3,000 | -20° to 220° | Self Aligning | Lubricated | 0000000 | 0000000 |
Mounted Roller Bearings
Roller bearings have a thinner profile and larger contact area than ball bearings, making them stronger and more space-efficient than ball bearings.
Sealed bearings block out dust and contaminants.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Hole Lg. | Hole Wd. | Hole Ctr.-to-Ctr. | Dynamic | Static | Dynamic Thrust Load Cap., lbs. | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Steel Bearings with Cast Iron Housing—Shaft Mount Type: Set Screw | ||||||||||||||||
| 2 1/4" | 2 3/4" | 5 23/32" | 10 1/2" | 4" | 7/8" | 3/4" | 8 1/2" | 11,600 | 54,000 | 3,450 | 2,400 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 0000000 |
Mounted Ball Bearings with Two-Bolt Flange
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Bearings with a set-screw shaft mount secure to shafts with no need for an additional collar. They can be used for bi-directional shaft rotation when applications require reversing action. The set screw may cause some marring on the shaft.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | ||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||
| 2 1/4" | 5 7/16" | 9 1/4" | 2 29/32" | 13/16" | 11/16" | 7 61/64" | 11,800 | 8,050 | 3,400 | -20° to 210° | Self Aligning | Lubricated | 00000000 | 0000000 |
Mounted Ball Bearings with Four-Bolt Flange
Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
Set screw bearings secure to shafts as you tighten their screw. They don’t need a collar, but the screw leaves some marring on shafts. Use them in applications where shafts rotate in both directions.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting | Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Cast Iron Housing | ||||||||||||||
Shaft Mount Type: Set Screw | ||||||||||||||
| 2 1/4" | 6 7/8" | 6 7/8" | 2 29/32" | 11/16" | 11/16" | 5 5/8" | 11,800 | 8,100 | 3,400 | -20° to 210° | Self Aligning | Lubricated | 00000000 | 0000000 |
Insert Bearings
Swap out worn inserts instead of replacing the entire mounted unit. Use the manufacturer model number on your existing mounted bearing to choose a compatible insert. Inserts must be used with the manufacturer model number specified.
For technical drawings and 3-D models, click on a part number.
Thread-Mount Bearings
Combine with threaded pipe to mount these bearings in a variety of positions without the need for a flat mounting surface. Bearings are self-aligning to compensate for shaft misalignment. Seals block out dust and contaminants.
NPSM (National Pipe Straight Mechanical) threads are compatible with NPT threads. See more about pipe thread type and sizing.
For technical drawings and 3-D models, click on a part number.
Overall | Radial Load Cap., lbs. | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Center Ht. | Ht. | Lg. | Wd. | Pipe Size | Thread Type | Thread Lg. | Dynamic | Static | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Steel Bearings with Ductile Iron Housing | |||||||||||||||
Shaft Mount Type: Set Screw | |||||||||||||||
| 2 1/4" | 4" | 6 13/16" | 5 5/8" | 2 9/16" | 1 1/4 | NPSM | 1 1/8" | 11,700 | 8,150 | 3,000 | -20° to 220° | Self Aligning | Lubricated | 000000 | 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | Overall Wd. | Wd. | Dp. | Taper | Fastener Tightening Torque, in.-lbs. | Material | Includes | Each | |
2517 Style Bushing | |||||||||
| 2 1/4" | 1 3/4" | 1/2" | 1/4" | 8° | 430 | Steel | Set Screws | 000000000 | 000000 |