FOR REFERENCE ONLY
Bearing No. NNU4948
Specification data (main dimensions, etc.)
| d(mm) | 240 |
|---|---|
| D(mm) | 320 |
| B(mm) | 80 |
| r(min.)(mm) | 2.1 |
| Fw(mm) | 263 |
| Ew(mm) | - |
| Basic load ratings : Cr(kN) | 736 |
| Basic load ratings : C0r(kN) | 1340 |
| Fatigue load limit : Cu(kN) | 155 |
| Limiting speeds(Grease lub.)(min-1) | 1600 |
| Limiting speeds(Oil lub.)(min-1) | 1900 |
Mounting dimensions,weight (reference)
| da(min.)(mm) | 251 mm |
|---|---|
| da(max.)(mm) | 260 mm |
| db(min.)(mm) | 269 mm |
| Da(max.)(mm) | 309 mm |
| da(min.)(mm) | - mm |
| ra(max.)(mm) | 2 mm |
| Mass(Refer.)(kg) | 18.0 kg |
2026/08/10