Ceramic Bicycle Wheel Bearings

Additionally silicon nitride does not deform under load keeping contact points with the bearing races to a minimum.

Ceramic bicycle wheel bearings.

For bottom bracket applications the maximum sustained rpm may be 130 explains lew. After all since there are no chance for parts to oxidize there is also no need for grease. Cracking a race could stop a wheel from turning instantly and no good comes of wheels permanently locking up on a bicycle. I show how to overhaul a cup and cone hub on a rear bicycle wheel.

Crafting the fastest bearing products for cycling and industry since 2004. Essenc bike cycle bearing press set for wheel hub bearing installation tooling softail frame turning point bearing hub tool. The silicon nitride used in kogel ceramic bearing balls has a set of material properties making them perfect for bicycle wheel bearings. Fitting ceramic bearings on your bike may be a bit like fitting a formula one gearbox in your ford fiesta and expecting it to perform as well after 100 000 miles.

The material can be polished smoother than any metal reducing friction and wear. Donepart 4 pcs r8 2rs bearings 1 2 id x1 1 8 od x 5 16 thick small bearings double rubber sealed miniature ball bearing for motor bicycle diy garden machinery etc. So for safety reasons ceramic wheel bearings on bicycles are in fact almost always hybrid design meaning ceramic balls on steel races. Leading industry wheel dynamics expert and ceo of edco wheels paul lew backs this up and reckons it makes ceramic bearings a poor choice for hubs and headsets also adding that they offer no weight savings and are only beneficial in environments where high rpm revolutions per minute are required.

Hand built in denmark. Full ceramic wheel bearings would be an amazing way to reduce friction in hubs. In most bearings the grease is the main source of friction.