About Ball and Roller Bearings
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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 | |
| R133 | 3/32" | 3/16" | 1/16" | 440C Stainless Steel | 40 | 10 | 95,000 | Lubricated | -40° to 240° | ABEC-5 | 000000000 | 00000 |
Precision Stainless Steel Ball Bearings
Made to tight tolerances, these 440C stainless steel bearings combine speed and accuracy with corrosion resistance.
Open bearings dissipate heat more efficiently than shielded bearings.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open 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 | |
Open | ||||||||||||
| R144 | 1/8" | 1/4" | 3/32" | 440C Stainless Steel | 40 | 10 | 84,000 | Lubricated | -10° to 240° | ABEC-7 | 000000 | 000000 |
| R156 | 3/16" | 5/16" | 7/64" | 440C Stainless Steel | 40 | 10 | 63,000 | Lubricated | -10° to 240° | ABEC-7 | 0000000 | 00000 |
Shielded | ||||||||||||
| R155-2Z | 5/32" | 5/16" | 1/8" | 440C Stainless Steel | 40 | 15 | 20,000 | Lubricated | -10° to 240° | ABEC-7 | 0000000 | 00000 |
| R156-2Z | 3/16" | 5/16" | 1/8" | 440C Stainless Steel | 40 | 15 | 17,000 | Lubricated | -10° to 240° | ABEC-7 | 0000000 | 00000 |
| R168-2Z | 1/4" | 3/8" | 1/8" | 440C Stainless Steel | 40 | 20 | 15,000 | Lubricated | -10° to 240° | ABEC-7 | 0000000 | 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 | ||||||||||||
| R6 | 3/8" | 7/8" | 7/32" | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
| R6A | 3/8" | 7/8" | 9/32" | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 000000 | 0000 |
| 608 | 8mm | 22mm | 7mm | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 0000 |
| 627 | 7mm | 22mm | 7mm | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 0000 |
| 629 | 9mm | 26mm | 8mm | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 0000 |
Glass Ball | ||||||||||||
Open | ||||||||||||
| R6 | 3/8" | 7/8" | 7/32" | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
| R6A | 3/8" | 7/8" | 9/32" | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 000000 | 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 | ||||||||||||
| R6 | 3/8" | 7/8" | 7/32" | PVDF Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 000000 |
| R6A | 3/8" | 7/8" | 9/32" | PVDF Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 0000000 | 00000 |
Flanged Ball Bearings
The flange ensures proper positioning inside a tube or housing.
440C stainless steel bearings are more corrosion resistant than steel bearings.
Open bearings dissipate heat more efficiently than shielded and sealed bearings.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
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 | |
| R133 | 3/32" | 3/16" | 1/16" | 0.234" | 0.02" | 440C Stainless Steel | 40 | 10 | 95,000 | Lubricated | -20° to 250° | ABEC-5 | 000000000 | 00000 |
| 63 | 3mm | 6mm | 2mm | 7.2mm | 0.6mm | Steel | 40 | 15 | 96,000 | Lubricated | -50° to 300° | ABEC-3 | 000000000 | 0000 |
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 | |
| 63-2Z | 3mm | 6mm | 2.5mm | 7.2mm | 0.6mm | Steel | 40 | 15 | 81,000 | Lubricated | -50° to 300° | ABEC-3 | 000000000 | 000000 |
| 74-2Z | 4mm | 7mm | 2.5mm | 8.2mm | 0.6mm | 440C Stainless Steel | 40 | 15 | 71,000 | Lubricated | -50° to 300° | ABEC-3 | 000000000 | 00000 |
| 682-2Z | 2.5mm | 6mm | 2.6mm | 7.1mm | 0.8mm | Steel | 40 | 15 | 81,000 | Lubricated | -50° to 300° | ABEC-3 | 000000000 | 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 | ||||||||||||||
| R6 | 3/8" | 7/8" | 7/32" | 0.965" | 0.06" | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 000000 | 000000 |
| R6A | 3/8" | 7/8" | 9/32" | 0.965" | 0.06" | Acetal Plastic | 40 | 30 | 1,600 | Not Required | -40° to 180° | Not Rated | 000000 | 00000 |
Precision Flanged Ball Bearings
When speed and accuracy matter most, opt for these bearings. They’re made to tighter tolerances than standard flanged ball bearings. All are 440C stainless steel for good corrosion resistance. The flange ensures proper positioning inside a tube or housing.
Open bearings dissipate heat more efficiently than shielded bearings.
Shielded bearings block out dust and other contaminants, but do not dissipate heat as efficiently as open bearings.
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 | ||||||||||||||
| R144 | 1/8" | 1/4" | 3/32" | 0.296" | 0.02" | 440C Stainless Steel | 40 | 10 | 84,000 | Lubricated | -10° to 240° | ABEC-7 | 000000 | 000000 |
| R156 | 3/16" | 5/16" | 7/64" | 0.359" | 0.02" | 440C Stainless Steel | 40 | 10 | 63,000 | Lubricated | -10° to 240° | ABEC-7 | 0000000 | 00000 |
Shielded | ||||||||||||||
| R155-2Z | 5/32" | 5/16" | 1/8" | 0.359" | 0.04" | 440C Stainless Steel | 40 | 15 | 20,000 | Lubricated | -60° to 250° | ABEC-7 | 0000000 | 00000 |
| R156-2Z | 3/16" | 5/16" | 1/8" | 0.359" | 0.04" | 440C Stainless Steel | 40 | 15 | 17,000 | Lubricated | -60° to 250° | ABEC-7 | 0000000 | 00000 |
| R168-2Z | 1/4" | 3/8" | 1/8" | 0.422" | 0.04" | 440C Stainless Steel | 40 | 20 | 15,000 | Lubricated | -60° to 250° | ABEC-7 | 0000000 | 00000 |