BEARINGDEXBall, inch R series
R2 bearing
1/8 inch bore, 3/8 inch outside diameter, 5/32 inch width (3.175 × 9.525 × 3.969 mm).
Dimensions
| mm | inch | |
|---|---|---|
| Bore d | 3.175 | 0.1250 (1/8) |
| Outside diameter D | 9.525 | 0.3750 (3/8) |
| Width B | 3.969 | 0.1563 (5/32) |
Quick numbers
| Pitch diameter dm | 6.3 mm |
| Section height (D − d)/2 | 3.2 mm |
| n·dm at 1,800 rpm | 11,430 |
| n·dm at 3,600 rpm | 22,860 |
Compare against the maker's limiting speed. Speed calculator · L10 life
What the number means
RInch-dimension radial ball bearing
2Bore in sixteenths of an inch: 2/16 = 1/8 in