Bicycle Bottom Bracket Bearings
Main Products
BICYCLE BOTTOM BRACKET BEARINGS
The bottom bracket bearing is designed to minimize friction, resulting in smoother rotation, lower energy loss, and superior sliding performance.
This design not only reduces drag and improves riding efficiency but also ensures the bottom bracket bearing’s high load-bearing capacity. They can safely withstand the high pressure applied by the rider without damaging the bicycle or affecting its performance.
Ball Retainers
| Bearing No. | Dimensions(mm) | Weight | ||
|---|---|---|---|---|
| d | D | B | (g) | |
| 163110-2RS | 16 | 31 | 10 | 25.8 |
| 173110-2RS | 17 | 31 | 10 | 25.4 |
| 19317-2RS | 19 | 31 | 7 | 22.6 |
| 19379-2RS | 19 | 37 | 9 | 36.7 |
| R12-2RS | 19.05 | 41.275 | 11.113 | 61.2 |
| 21537-2RS | 21.5 | 31 | 7 | 14 |
| 22379-2RS | 22 | 37 | 9 | 32 |
| R12-2RS/22 | 22 | 41.275 | 11.113 | 54 |
| 24377-2RS | 24 | 37 | 7 | 19 |
| 24378-2RS | 24 | 37 | 8 | 23.2 |
| 6805-2RS | 25 | 37 | 7 | 22 |
