ENDURO BEARINGS Mr 128 2rs - abec 3 (radial) - 8x12x3,5

MR 128 2RS - ABEC-3 Radial Bearing (C3 Clearance) Designed for high-performance cycling applications, the MR 128 2RS is a compact radial bearing measuring 8mm x 12mm x 3.5mm. Used by Extralite as a pulley bearing, this ABEC-3 precision component features durable 52100 high-carbon chromium alloy races paired with Grade 10 balls for exceptional strength and longevity. Equipped with dual seals, it offers superior protection against dirt, water, and other external elements, while containing the high-pressure, waterproof synthetic grease Mobil XHP 222. Part of the Enduro line, these bearings are available in various materials including high-carbon chromium steel, 440C stainless steel, ceramic-hybrid, and XD-15 with ceramic or stainless steel balls. Engineered with deep groove races and dual-lip labyrinth seals, they provide maximum durability and protection for demanding cycling environments. Static load capacity is 62 lbf / 0.28 kN, with a weight of just 2 grams.