About Ball and Roller Bearings
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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 | ||||||||||||
R8A | 1/2" | 1 1/8" | 3/8" | 316 Stainless Steel | 160 | 120 | 1,100 | Required | -40° to 140° | Not Rated | 00000000 | 000000 |
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 | ||||||||||||
R8A | 3/8" | 1 1/8" | 3/8" | Acetal Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
R8A | 1/2" | 1 1/8" | 3/8" | Acetal Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 000000 | 0000 |
Glass Ball | ||||||||||||
Open | ||||||||||||
R8A | 3/8" | 1 1/8" | 3/8" | Acetal Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
R8A | 1/2" | 1 1/8" | 3/8" | Acetal Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
Water-Resistant Plastic Ball Bearings

Made of PVDF, these bearings resist moisture absorption, so they won’t warp in underwater applications. They also have excellent chemical and corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Radial Load Cap., lbs. | 316 Stainless Steel Ball | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | ||||||||||||
R8A | 3/8" | 1 1/8" | 3/8" | PVDF Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 0000000 | 000000 |
R8A | 1/2" | 1 1/8" | 3/8" | PVDF Plastic | 55 | 40 | 1,100 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
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 | ||||||||||||
R8A | 1/2" | 1 1/8" | 3/8" | PEEK Plastic | 65 | 50 | 1,300 | Not Required | -40° to 330° | Not Rated | 0000000 | 000000 |