About Ball and Roller Bearings
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Ball Bearings
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number  | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
| R8 | 1/2" | 1 1/8" | 1/4" | Steel | 1,140 | 530 | 30,000 | Lubricated | -65° to 275° | ABEC-1 | 000000000 | 00000 |
Permanently Lubricated Ball Bearings
A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. Because it's solid, the lubricant blocks out water and dust, extending the life of the bearing.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
| R8 | 1/2" | 1 1/8" | 1/4" | Steel | 1,100 | 540 | 15,000 | Lubricated | 10° to 200° | ABEC-1 | 00000000 | 000000 |
Stainless Steel Ball Bearings
Bearings are 440C stainless steel for good corrosion resistance.
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
| R8 | 1/2" | 1 1/8" | 1/4" | 440C Stainless Steel | 910 | 500 | 32,000 | Lubricated | -40° to 240° | ABEC-1 | 0000000 | 000000 |
Permanently Lubricated Stainless Steel Ball Bearings
A solid polymer lubricant surrounds the balls, eliminating the need for additional lubrication. The solid lubricant blocks out water and dust, extending the life of the bearing.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
| R8 | 1/2" | 1 1/8" | 1/4" | 440C Stainless Steel | 700 | 540 | 15,000 | Lubricated | -10° to 200° | ABEC-1 | 000000 | 000000 |
Food Industry Permanently Lubricated Stainless Steel Ball Bearings
Good for applications with incidental food contact, these 440C stainless steel bearings have a food-grade, solid polymer lubricant between the balls and ring that eliminates the need for additional lubrication. The solid lubricant blocks out water and dust, extending the life of the bearing.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Specifications Met | Each | |
Open | |||||||||||||
| R8 | 1/2" | 1 1/8" | 1/4" | 440C Stainless Steel | 970 | 420 | 15,000 | Lubricated | -20° to 210° | ABEC-1 | FDA Compliant 21 CFR 178.3570 | 000000 | 000000 |
Ultra-Corrosion-Resistant Stainless Steel Ball Bearings
These 316 stainless steel bearings are more corrosion resistant than our other stainless steel bearings, but they have a lower load capacity.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
| R8 | 1/2" | 1 1/8" | 1/4" | 316 Stainless Steel | 160 | 120 | 1,100 | Required | -40° to 140° | Not Rated | 0000000 | 000000 |
| R8 | 5/8" | 1 1/8" | 1/4" | 316 Stainless Steel | 160 | 120 | 1,100 | Required | -40° to 140° | Not Rated | 00000000 | 00000 |
Plastic Ball Bearings
These acetal bearings have good all-around corrosion and chemical resistance.
316 stainless steel balls have excellent corrosion resistance.
Glass balls have even more corrosion resistance than stainless steel balls.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
316 Stainless Steel Ball | ||||||||||||
Open | ||||||||||||
| R8 | 1/2" | 1 1/8" | 1/4" | Acetal Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
| R8 | 5/8" | 1 1/8" | 5/16" | Acetal Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 0000000 | 0000 |
Glass Ball | ||||||||||||
Open | ||||||||||||
| R8 | 1/2" | 1 1/8" | 1/4" | Acetal Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
| R8 | 5/8" | 1 1/8" | 5/16" | Acetal Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
High-Load Plastic Ball Bearings
With two rows of balls, these lightweight bearings have greater durability and load capacity—and a wider profile—than single-row plastic bearings. They’re commonly used in bottle-filling machines and other food-processing applications. The acetal body doesn’t absorb water, so it can operate in liquids or be washed down without losing strength. The balls are made of either glass or 316 stainless steel—both materials are corrosion resistant. Since there’s no metal-on-metal contact between the balls and the body, these bearings don’t require lubrication.
For technical drawings and 3-D models, click on a part number.
Radial Load Capacity, lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Diameter | For Housing ID | Width | Ring Material | Dynamic | Static | Maximum Speed, rpm | Lubrication | Temperature Range, °F | ABEC Rating | Each | |
316 Stainless Steel Balls | ||||||||||||
Open | ||||||||||||
| R8 | 1/2" | 1 1/8" | 7/16" | Acetal Plastic | 70 | 60 | 900 | Not Required | -40° to 180° | Not Rated | 00000000 | 000000 |
Glass Balls | ||||||||||||
Open | ||||||||||||
| R8 | 1/2" | 1 1/8" | 7/16" | Acetal Plastic | 75 | 60 | 900 | Not Required | -40° to 180° | Not Rated | 00000000 | 00000 |
| R8 | 5/8" | 1 3/8" | 7/16" | Acetal Plastic | 65 | 54 | 1,000 | Not Required | -40° to 180° | Not Rated | 00000000 | 00000 |
Lubrication-Free Plastic Flanged Ball Bearings
Install these acetal bearings in caustic environments and where lubrication can’t be used. They have good all-around corrosion and chemical resistance. The flange ensures proper positioning inside a tube or housing.
For technical drawings and 3-D models, click on a part number.
Flange | Radial Load Cap., lbs. | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | OD | Thick. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||||
| R8 | 1/2" | 1 1/8" | 3/8" | 1.25" | 0.06" | Acetal Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 000000 | 000000 |
High-Temperature Ball Bearings
Made with either PEEK or graphite, these ball bearings work in applications that are too hot for most other ball bearings.
PEEK bearings handle temperatures almost twice as high as that of our other plastic ball bearings. They also have good chemical resistance and excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bearing Trade Number | For Shaft Dia. | For Housing ID | Wd. | Ring Material | Dynamic | Static | Max. Speed, rpm | Lubrication | Temp. Range, °F | ABEC Rating | Each | |
Open | ||||||||||||
PEEK Plastic Cage—316 Stainless Steel Ball | ||||||||||||
| R8 | 1/2" | 1 1/8" | 1/4" | PEEK Plastic | 65 | 50 | 1,300 | Not Required | -40° to 330° | Not Rated | 0000000 | 000000 |
Shims for Ball Bearing Housings
Also called tolerance rings, these rings are for use in stamped, molded, or worn housings to form a tight hold on the bearings. They work like a spring, creating tension between the bearing and the housing to hold the bearing in place. They also reduce vibration and compensate for some thermal expansion between the housing and the bearing and eliminate the need for keys, pins, and adhesives. They're made of stainless steel for corrosion resistance.
For technical drawings and 3-D models, click on a part number.
For Bearing | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Trade No. | OD | Wd. | Static Radial Load Capacity, lbs. | Bearing Mount Bore Dia. | Thick. | Corrugation Ht. | Misalignment Capability | Material | Minimum Hardness | Each | |
Inch | |||||||||||
| R8 | 1 1/8" | 1/4" | 720 | 1.199"-1.203" | 0.008"-0.02" | 0.03"-0.05" | 0.5° | 301 Stainless Steel | Rockwell C40 | 0000000 | 000000 |