Enduro bearings 6004 llb - abec 3 (radial) - 20x42x12

ABEC 3: A standard value used to measure the surface tolerance of rolling 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 a standard. At Enduro, the minimum standard is ABEC 3. ABEC 3: Steel balls Grade 10. Race made of 52100 chrome 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 bit further by machining a recess in the inner ring, where the seal can rotate with excellent efficiency and resistance compared to an inferior bearing. Rather than a single "lip" of a thick seal rubbing against an uneven surface, the LLB type uses 2 sealing lips, thin as a razor blade that slides into a recess with light contact. The outer "lip" keeps water and impurities out, while the inner seal retains the grease for smooth rotation and long intervals between maintenance.

Article number BB60042RS/C3 EAN 185843000308 Brands Enduro Bearing height (mm) 12 Bearing inner diameter (mm) 20 Bearing outer diameter (mm) 42 Type ABEC 3 6004 2RS3 - ABEC-3 Radial Bearing (C3 Clearance) This high-quality radial bearing with dimensions of 20mm x 42mm x 12mm is often used as a hub bearing in various exercise bikes. It features a deep-groove design with Grade 10 balls, LLB seals, and 90% fill rate with waterproof high-pressure grease, making it resistant to daily use and the elements. The Enduro line offers options in high-carbon chrome steel, 440C stainless steel, ceramic-hybrid, and XD-15 with ceramic or stainless steel balls. Our bearings are designed with the deepest groove races to accommodate larger balls and feature double lip seals that run in micro-grooves, creating a complete labyrinth for superior protection. The static load is 1131 lbf / 5.03 kN and the weight is 67.3 grams.