About Ball and Roller Bearings
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About Plain Bearings
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Ultra-Thin Ball Bearings
These bearings have twice as many contact points as angular-contact ball bearings. Fit onto large-diameter hollow shafts to run air and hydraulic lines, electrical wiring, and other components through moving parts in assemblies such as index and rotary tables, packaging equipment, and robotics.
Open bearings dissipate heat more efficiently than shielded bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | Thrust Load Cap., lbs. | Moment Load Cap., ft.-lbs. | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | For Housing ID | Wd. | Dynamic | Static | Dynamic | Static | Dynamic | Static | Max. Speed, rpm | Lubrication | Contact Angle | Temp. Range, °F | ABEC Rating | Each | |
Steel Ring | |||||||||||||||
Open | |||||||||||||||
| 3 1/2" | 4" | 1/4" | 700 | 1,100 | 1,100 | 2,850 | 80 | 170 | 700 | Required | 30° | -60° to 250° | ABEC-1F | 0000000 | 0000000 |
| 3 1/2" | 4 1/8" | 5/16" | 1,000 | 1,500 | 1,550 | 3,850 | 120 | 240 | 700 | Required | 30° | -60° to 250° | ABEC-1F | 0000000 | 000000 |
One-Piece Thrust Ball Bearings
In addition to handling higher loads than three-piece ball bearings, one-piece bearings are easier to handle. They have an outer band that holds the bearing together and acts as a shield against dust and other contaminants.
For technical drawings and 3-D models, click on a part number.
Thrust Load Cap., lbs. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | OD | Thick. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | Features | Each | |
Shielded | |||||||||||
| 3 1/2" | 5 7/32" | 1" | Steel | 19,200 | 60,000 | 1,400 | Required | -40° to 245° | Lubrication Hole | 00000000 | 0000000 |
Oil-Embedded Sleeve Bearings
Startup friction causes these 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 3 1/2" Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 4" | 2" | 12,700 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 220° | 00000000 | 000000 |
| 4" | 3" | 19,050 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
| 4" | 3 1/2" | 22,250 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
| 4" | 4" | 25,450 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | 10° to 220° | 00000000 | 000000 |
High-Temperature Dry-Running Thrust Bearings
Graphite provides a layer of dry lubrication that operates in high-temperature environments.
Graphalloy bearings perform at extreme temperatures and under water. They are electrically conductive and wear resistant. They’re also our highest temperature thrust 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 | Temperature Range, °F | Each | |
Graphalloy Bearings | |||||
|---|---|---|---|---|---|
For 3 1/2" Shaft Dia. | |||||
| 6 7/16" | 31/64" | 7,000 lbs. @ 24 rpm | -450° to 750° | 0000000 | 0000000 |
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 3 1/2" Shaft Dia. | |||||||
|---|---|---|---|---|---|---|---|
| 5" | 1/8" | 12,500 lbs. @ 30 rpm | Lubricated | SAE 30 Oil | -35° to 300° | 00000000 | 000000 |
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 | ||||||||||||||||
| 3 1/2" | 3 3/4" | 7 1/2" | 14" | 5" | 1 3/16" | 1" | 11" | 19,600 | 108,000 | 5,150 | 1,600 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 000000000 |
Mounted Roller Bearings with Four-Bolt Flange
The tapered rollers in these bearings support large shafts at high static loads. Seals 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. | Ht. | Lg. | Wd. | Flange Thick. | Hole Dia. | Hole Ctr.-to-Ctr. | Dynamic | Static | Dynamic Thrust Load Cap., lbs. | Max. Speed, rpm | Temp. Range, °F | Alignment Style | Lubrication | Each | |
Sealed Tapered-Roller Bearings | |||||||||||||||
Steel Bearings with Cast Iron Housing—Shaft Mount Type: Set Screw | |||||||||||||||
| 3 1/2" | 9 1/4" | 9 1/4" | 5 1/4" | 1 7/8" | 3/4" | 7" | 19,600 | 108,000 | 5,150 | 1,600 | -60° to 250° | Fixed Alignment | Lubricated | 0000000 | 000000000 |
Hub-Mount Screw-Clamp Bushings
Transfer torque directly from a shaft to a hub. These bushings install over your hub to mount a sprocket, pulley, or gear to a shaft at the same time. Common in industrial gearbox applications, they can also connect a hollow shaft over a solid shaft. As screw-clamp bushings, they're good for shock loads. When you tighten the included clamping screws, the outer rings compress against a sprocket, pulley, or gear in between them, causing the inner rings to tighten around the shaft.
For technical drawings and 3-D models, click on a part number.
| For Shaft Dia. | OD | Overall Wd. | Max. Torque, in.-lbs. | Fastener Tightening Torque, in.-lbs. | Material | Each | |
| 3 1/2" | 6 1/16" | 1 11/16" | 57,000 | 260 | Zinc-Plated Steel | 0000000 | 0000000 |