Blackbearing B5 63803-2RS hub bearing

The Blackbearing 63803-2RS bearing is available in B5 quality, a range specifically designed for the cycling sector, resistant to extreme conditions such as rain, mud and dust. The various components are precision-assembled to meet the highest standards of bearing quality: reliability, smoothness, efficiency, stiffness and longevity.

To ensure these bearings are compatible with your wheels, remove the bearings from your hubs and measure the three dimensions using a calliper.

Technical specifications

- High-quality balls, ABEC 5 rating
- 2RS seals: latest-generation double-lip labyrinth seals, offering superior resistance to water and dust
- Premium-quality lubricant
- Ball retention via metal cage
- Internal diameter: 17 mm
- External diameter: 26 mm
- Thickness: 7 mm
- Part number: 63803-2RS

Bearing sold individually. The current part number 63803-2RS is identical to the designation 6803-2RS.