BEARINGDEXBall, inch R series
R3 bearing
3/16 inch bore, 1/2 inch outside diameter, 0.196 inch width (4.762 × 12.7 × 4.978 mm).
Dimensions
| mm | inch | |
|---|---|---|
| Bore d | 4.762 | 0.1875 (3/16) |
| Outside diameter D | 12.7 | 0.5000 (1/2) |
| Width B | 4.978 | 0.1960 |
Quick numbers
| Pitch diameter dm | 8.7 mm |
| Section height (D − d)/2 | 4.0 mm |
| n·dm at 1,800 rpm | 15,716 |
| n·dm at 3,600 rpm | 31,432 |
Compare against the maker's limiting speed. Speed calculator · L10 life
What the number means
RInch-dimension radial ball bearing
3Bore in sixteenths of an inch: 3/16 = 3/16 in