Ceramicspeed bearings 61803-2rsf / hc5 coated

All CeramicSpeed ​​bearings are handcrafted in Denmark. Super smooth CeramicSpeed ​​Grade 3 Silicon Nitride Balls are combined (within microns) with hardened steel raceways that feature an ultra-smooth polished groove. The balls are held in place by a reinforced polyamide cage. Each bearing is optimized with a low viscosity ceramic "blue grease" to minimize fiction and increase bearing life. Non-contact seals complete the bearings, preventing dirt and moisture from entering.