BEARINGDEXCylindrical roller, NJ
NJ212 bearing
60 mm bore, 110 mm outside diameter, 22 mm width (2.3622 × 4.3307 × 0.8661 in).
Dimensions
| mm | inch | |
|---|---|---|
| Bore d | 60 | 2.3622 |
| Outside diameter D | 110 | 4.3307 |
| Width B | 22 | 0.8661 |
Quick numbers
| Pitch diameter dm | 85.0 mm |
| Section height (D − d)/2 | 25.0 mm |
| n·dm at 1,800 rpm | 153,000 |
| n·dm at 3,600 rpm | 306,000 |
Compare against the maker's limiting speed. Speed calculator · L10 life
What the number means
NJCylindrical roller. One rib on the inner ring locates the shaft in one direction.
2Diameter series 2: light
12Bore code 12 × 5 = 60 mm
Same size, different bearing
These share the 60 × 110 × 22 mm envelope but carry load differently. They aren't drop-in swaps.