Enduro bearings mr 17287 llb - abec 3 (radial) - 17x28x7

ABEC 3: A standard value used to measure the tolerance of the surface 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 standard. At Enduro, the minimum standard is ABEC 3. ABEC 3: Steel balls Grade 10. Race in a 52100 chrome alloy and high-grade carbon. 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 little further by mechanically creating 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, fine like a razor sliding 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 service intervals.

Article number MR17287LLB EAN 810191012740 Brands Enduro Bearing height (mm) 7 Inner diameter bearing (mm) 17 Outer diameter bearing (mm) 28 Type ABEC 3 MR 17287 LLB - ABEC-3 Radial Bearing Ring (C3 Clearance) - 17mm x 28mm x 7mm This high-performance radial bearing ring is ideal for bicycle hub applications and can also serve as a pivot bearing. The MAX variant is better suited for suspension systems. With a deep-groove design and Grade 10 balls, this ABEC-3 bearing ring features double labyrinth (LLB) seals and is filled with high-pressure waterproof grease, making it resistant to daily use and the elements. Part of the Enduro line, these bearings are available in high-carbon chrome steel, 440C stainless steel, ceramic-hybrid, and XD-15 with ceramic or stainless steel balls. They are designed with the deepest possible groove to accommodate larger balls and offer superior protection and long life thanks to micro-groove double lip seals that form a complete labyrinth seal. The static load capacity is 488 lbf (2.17 kN) and the weight is only 13.6 grams.