BB CH 688 VV | 8 x 16 x 5mm Bearing

CH 688 VV - Ceramic-Hybrid, ABEC-5 Radial Bearing (C3 Clearance) - 8mm x 16mm 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, ultra-low drag VV dual-lip 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. VV seals are our lightest contact design, allowing for the fastest spinning bearing we make, though not as protective against the elements as our LLB or LLU type seals. This radial bearing has been used as a pedal bearing and as a pivot bearing on some full suspension designs though the MAX-type version of this bearing is better suited for pivot applications. 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.