Large size deep groove ball bearing 61960 300x420x56 mm
Thin section bearings of the 69 series have considerably smaller dimensions than deep groove ball bearings of the 60, 62, 63 and 64 series with their thin, square cross section at the same inside diameter. Relatively high shaft- and axis diameters can thereby be installed at an also extremely confined installation space. They are extremely light and are suitable for comparatively high speeds. Used extensively in machine tools, textile machinery and jet engine gearbox applications.
| d | 300 mm | Bore diameter |
| D | 420 mm | Outside diameter |
| B | 56 mm | Width |
| d1 | 338 mm | Shoulder diameter inner ring |
| D1 | 382 mm | Shoulder diameter outer ring |
| r | 3 mm | Chamfer dimension |
| Cr | 270 kN | Basic dynamic load rating |
| C0r | 375 kN | Basic static load rating |
| 3000 r/min | Reference Speed | |
| 1900 r/min | Limiting speed |
| ≈m | 19 kg | Weight |
| None | Locating feature outer ring | |
| Bearing steel | Material of race | |
| Sheet steel | Cage | |
| Open | Closures | |
| CN | Radial clearance | |
| P0 | Tolerance |
| NSK |
| 6960 |
