BEARINGDEXTapered roller
30308 bearing
40 mm bore, 90 mm outside diameter, 25.25 mm width (1.5748 × 3.5433 × 0.9941 in).
Dimensions
| mm | inch | |
|---|---|---|
| Bore d | 40 | 1.5748 |
| Outside diameter D | 90 | 3.5433 |
| Width T | 25.25 | 0.9941 |
Quick numbers
| Pitch diameter dm | 65.0 mm |
| Section height (D − d)/2 | 25.0 mm |
| n·dm at 1,800 rpm | 117,000 |
| n·dm at 3,600 rpm | 234,000 |
Compare against the maker's limiting speed. Speed calculator · L10 life
What the number means
3Tapered roller
03Dimension series 03: width 0, diameter 3 (medium)
08Bore code 08 × 5 = 40 mm