Enduro Bearings MR 22371 LLB-E - ABEC 3 (Radial) - 22x37.1x8 11.5

ABEC 3: A standard value used to measure the tolerance of the surface of ball bearings. There are five classes: 1, 3, 5, 7, and 9. The higher the ABEC class, the greater the precision, efficiency, and speed capacity, but the highest ABEC classes are not necessarily the fastest rotating parts. All quality manufacturers worldwide use at least ABEC 1 as standard. At Enduro, the minimum standard is ABEC 3. ABEC 3: Steel balls Grade 10. Race in a 52100 chromium alloy and high-carbon steel. ABEC 3 standard. Depending on their application, these bearings use LLU or LLB seals; even when marked with 2RS. LLB: Our most popular seal, consisting of a rubber finish with a metal core. Unlike the standard 2RS, we go a step further by machining a recess in the inner ring, where the seal can rotate with excellent efficiency and resistance to a lesser bearing. Rather than a single "lip" of a thick seal rubbing against an uneven surface, the LLB type uses 2 lips of seals, razor-thin, that slide into a recess with light contact. The outer "lip" keeps water and impurities out, while the inner seal retains grease for smooth rotation and long intervals between maintenance.

Article number MR22371LLB-E EAN 185843000360 Brands Enduro Bearing height (mm) 8 Inner diameter bearing (mm) 22 Outer diameter bearing (mm) 37.1 Type ABEC 3 MR 22371 LLB-E - ABEC-3 Radial Bottom Bracket Bearing for Trek BB90 & SRAM GXP Improve your cycling performance with the MR 22371 LLB-E ABEC-3 radial bottom bracket bearing, specially designed for Trek BB90 and SRAM GXP cranksets. Equipped with high-quality 52100 high-carbon chrome alloy races and grade 10 balls filled to 90%, this bearing offers exceptional durability and smooth rotation. Featuring high-pressure, waterproof grease, it guarantees reliable operation in all weather conditions. This custom-made bearing is ideal for replacing worn or slightly oversized seats in softer materials such as aluminum frames. With an oversize of 0.1 mm, it fits precisely into the BB housing, especially with SRAM GXP drivetrain installations. For non-drive side and Shimano cranksets, we recommend our MR24371 model, designed for similar oversized BB90 applications. Our Enduro line includes bearings made from high-carbon chrome steel, 440C stainless steel, ceramic-hybrid, and XD-15 with ceramic or stainless steel balls. Designed with deep groove races and double-lip seals in micro-grooves, these bearings offer superior protection against dirt, water, and grime. Weighing only 32.8 g and with a static load capacity of up to 834 lbf / 3.71 kN, they are ideal for demanding cycling conditions.