BB 61903 LLB CN | 17 x 30 x 7mm Bearing

61903/29.5 LLB- ABEC-5 Radial Bearing (CN Clearance) - 17mm x 29.5mm x 7mm This radial bearing generally used as a hub bearing most notably by Industry-Nine as a freehub bearing. With a slightly reduced (0.5mm) OD, this ABEC-5 bearing features deep-groove design races, with Grade 10 balls, LLB seals and 90% fill with high pressure water proof grease to withstand daily abuse of use and the elements. CN clearance specification is best for looser press-fit bearing bores. 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.