Deep groove ball bearing 6311-2RS 55x120x29 mm, contact seal
Ball bearings of the 63 medium series offer a balanced ratio between their radial load carrying capacity, the required installation space, their weight and the admissible speed. Consequently they are versatile.
| d | 55 mm | Bore diameter |
| D | 120 mm | Outside diameter |
| B | 29 mm | Width |
| d2 | 71.1 mm | Recess diameter inner ring |
| D2 | 105 mm | Recess diameter outer ring |
| r | 2 mm | Chamfer dimension |
| Cr | 74.1 kN | Basic dynamic load rating |
| C0r | 45 kN | Basic static load rating |
| 3800 r/min | Limiting speed |
| ≈m | 1.4 kg | Weight |
| Bearing steel | Material of race | |
| Sheet steel | Cage | |
| Contact seal | Closures | |
| CN | Radial clearance | |
| P0 | Tolerance |
| SKF | FAG | NSK | NTN | NACHI | TIMKEN |
| 6311-2RSH | 6311-C-2HRS | 6311DDU | 6311LLU | 6311-2NSE | 311PP |
