CH 689 2RS Ceramic, ABEC-3 Bearing (C3 Clearance) 9mm x 17mm x 5mm

CH 689 2RS - Ceramic-Hybrid, ABEC-3 Radial Bearing (C3 Clearance) - 9mm x 17mm x 5mm This ABEC-5, Ceramic-hybrid bearing features deep-groove design 52100 High-Carbon Chromium alloy races, with grade 5 Silicon-Nitride Ceramic balls, dual seals to withstand the outside elements, and to contain the 90% fill Kluber NBU52 ultra-smooth and sticky, water-proof grease. Si3N4 ceramic balls reduce bearing wear and increase bearing life by eliminating steel on steel contact within the bearing. This radial bearing has been used as a hub bearing and as a pivot bearing though the MAX-type version of this bearing is better suited for suspension use. The Enduro line of bearings are available in high-carbon chromium steel, 440C stainless steel, ceramic-hybrid and XD15 with ceramic or stainless balls. Our bearings are always engineered with deepest groove races possible to accommodate the largest balls and feature dual-lip seals that ride in a micro-groove creating a full labyrinth to provide superior protection against the elements.