BEARINGDEXTapered roller
30309 bearing
45 mm bore, 100 mm outside diameter, 27.25 mm width (1.7717 × 3.937 × 1.0728 in).
Dimensions
| mm | inch | |
|---|---|---|
| Bore d | 45 | 1.7717 |
| Outside diameter D | 100 | 3.9370 |
| Width T | 27.25 | 1.0728 |
Quick numbers
| Pitch diameter dm | 72.5 mm |
| Section height (D − d)/2 | 27.5 mm |
| n·dm at 1,800 rpm | 130,500 |
| n·dm at 3,600 rpm | 261,000 |
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)
09Bore code 09 × 5 = 45 mm