MR 18307 2RS ABEC-5 | 18 x 30 x 7mm Bearing

MR 20307 LLB - ABEC-5, Radial Bearing (C3 Clearance) - 20mm x 30mm x 7mm This ABEC-3 bearing features deep-groove design races, with Grade 10 balls, light-contact, dual-lip, labyrinth (LLB) seals and 90% fill with high pressure water proof grease to withstand daily abuse of use and the elements. This size bearing generally used as a front hub bearing, specifically for Mavic and Profile Racing. It is also used by Trek as a pivot bearing, though the MAX version is better suited for suspension 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.