Thin Section deep groove ball bearing 63801 12x21x7 mm
Thin section bearings of the 638 series are very narrow and light, wider than 628 series. They can be used for where space is limit or weight is a concern, such as in small motors, appliances, aircraft and racing cars.
Features:
| d | 12 mm | Bore diameter |
| D | 21 mm | Outside diameter |
| B | 7 mm | Width |
| r | 0.3 mm | Chamfer dimension |
| Cr | 1.91 kN | Basic dynamic load rating |
| C0r | 1.04 kN | Basic static load rating |
| 30000 r/min | Reference Speed | |
| 22000 r/min | Limiting speed |
| ≈m | 0.0085 kg | Weight |
| None | Locating feature outer ring | |
| Bearing steel | Material of race | |
| Sheet steel | Cage | |
| Open | Closures | |
| CN | Radial clearance | |
| P0 | Tolerance |
