Heavy Duty Deep groove ball bearing 6421 M 105x290x65 mm
Ball bearings of the 64 solid series can support considerably higher load-ratings at the same inside diameter than deep groove ball bearings of the 60, 62 and 63 series. They have the double load carrying capacity compared to deep groove ball bearings of the 62 light series, for example.
| d | 105 mm | Bore diameter |
| D | 290 mm | Outside diameter |
| B | 65 mm | Width |
| r | 3 mm | Chamfer dimension |
| Cr | 247 kN | Basic dynamic load rating |
| C0r | 228 kN | Basic static load rating |
| 2900 r/min | Reference Speed | |
| 2400 r/min | Limiting speed |
| ≈m | 22.25 kg | Weight |
| None | Locating feature outer ring | |
| Bearing steel | Material of race | |
| Machined brass cage | Cage | |
| Open | Closures | |
| CN | Radial clearance | |
| P0 | Tolerance |
| SKF |
| 6421 M |
