BEARINGDEXCylindrical roller, N
N208 bearing
40 mm bore, 80 mm outside diameter, 18 mm width (1.5748 × 3.1496 × 0.7087 in).
Dimensions
| mm | inch | |
|---|---|---|
| Bore d | 40 | 1.5748 |
| Outside diameter D | 80 | 3.1496 |
| Width B | 18 | 0.7087 |
Quick numbers
| Pitch diameter dm | 60.0 mm |
| Section height (D − d)/2 | 20.0 mm |
| n·dm at 1,800 rpm | 108,000 |
| n·dm at 3,600 rpm | 216,000 |
Compare against the maker's limiting speed. Speed calculator · L10 life
What the number means
NCylindrical roller. Ribs on the inner ring only, so the housing side floats.
2Diameter series 2: light
08Bore code 08 × 5 = 40 mm
Same size, different bearing
These share the 40 × 80 × 18 mm envelope but carry load differently. They aren't drop-in swaps.