BB CH MR 2437 w/sh | 24 x 37 x 7mm Bearing

CH MR 2437 w/sh - ABEC-5, Ceramic-Hybrid Radial Bearing - 24mm x 37mm x 7mm (with stainless bearing shields) Ceramic-Hybrid Radial Bottom Bracket Bearing featuring 52100 High-Carbon Chromium alloy races paired with grade 5 Silicon-Nitride Ceramic Balls with 90% fill, high-pressure, water-proof grease. Si3N4 ceramic balls reduce bearing wear and increase bearing life by eliminating steel on steel contact within the bearing. Two super-thin stainless steel shims/shields are included for an additional barrier against the elements. The most common use for this bearing is as a direct replacement bearing for Shimano external cup BBs. 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.