ABEC 3: A standard value used to measure the tolerance of the surface of the 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. Track 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 machining a recess in the inner ring, where the seal can rotate with excellent efficiency and resistance compared 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 the grease for smooth rotation and long intervals between maintenance.

Item number BB626LLB EAN 810191011514 Brands Enduro Bearing height (mm) 6 Bearing inner diameter (mm) 6 Bearing outer diameter (mm) 19 Type ABEC 3