Description
Bearing CeramicSpeed 61903 6903 17x30x7mm
Bearing 61903 (6903) - inner diameter 17mm/outer diameter 30mm/thickness 7mm Suitable for all disciplines. Advantages over standard bearings: Low friction, longer life and better power transferUltra smooth silicon nitride balls combined with ultra smooth polished hardened steel grooves Balls held in a reinforced polyamide cage Seals prevent ingress of dirt and moisture CS balls 400% smoother, 128% harder and 58% lighter than standard steel bearings
