61902 LLU/LLB A5 - ABEC-5 Radial Bearing (CN Clearance) - 15mm x 28mm x 7mmEnduro ABEC-5 radial bearings feature 52100 High-Carbon Chromium alloy races paired with grade 10 Balls. Enduro engineers all of our radial bearings with deeper grooves to accommodate the largest balls possible, providing maximum bearing contact area and greatly increased bearing life. Designed specifically bicycle applications, the LLU/LLB seal combination on these bearings utilizes a more protective LLU seal facing outward, towards the elements, to reduce contamination from water or dirt, while the lighter-contact (less seal-drag) LLB seals facing inward keep the 90% fill Mobil XHP 222 high pressure grease where it belongs.This size bearing is generally used as a hub bearing and can be used 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 XD-15 with Ceramic or Stainless Balls. Our bearings are always engineered with deep groove races to accommodate the largest balls possible. All of our standard bearings feature dual-lip seals that ride in a micro groove creating a full labyrinth to provide ultimate protection against the elements.Static Load: 563 lbf, 2.5 KnWeight: 27.4g