FOR REFERENCE ONLY
Bearing No. N304
Specification data (main dimensions, etc.)
| d(mm) | 20 |
|---|---|
| D(mm) | 52 |
| B(mm) | 15 |
| r(min.)(mm) | 1.1 |
| r1(min.)(mm) | 0.6 |
| Fw(mm) | - |
| Ew(mm) | 44.5 |
| Basic load ratings : Cr(kN) | 28.9 |
| Basic load ratings : C0r(kN) | 19.2 |
| Fatigue load limit : Cu(kN) | 2.50 |
| Limiting speeds(Grease lub.)(min-1) | 12000 |
| Limiting speeds(Oil lub.)(min-1) | 16000 |
| sd1(mm) | - |
| B1(mm) | - |
| B2(mm) | - |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 26.5 mm |
|---|---|
| db(min.)(mm) | - mm |
| db(max.)(mm) | - mm |
| dc(min.)(mm) | - mm |
| dd(min.)(mm) | - mm |
| Da(max.)(mm) | - mm |
| Db(max.)(mm) | 48 mm |
| Db(min.)(mm) | 45.5 mm |
| ra(max.)(mm) | 1 mm |
| rb(max.)(mm) | 0.6 mm |
| Mass(Refer.)(kg) | 0.144 kg |
2026/07/01