Enduro bearings 71902 llb a5 - abec 5 (angular contact) - 15x28x7

ABEC 5: A standard value used to measure the w tolerance of the surface of the roller bearings. There are five classes: 1, 3, 5, 7 and 9. The higher the ABEC class the greater the precision, efficiency and speed capability, but the highest ABEC classes are not necessarily the fastest rotating parts. All quality manufacturers around the world use at least ABEC 1 as standard. For Enduro, the minimum standard is ABEC 3. ABEC 5: Steel balls Grade 5: balls with a spherical shape with a precision of 5/1,000,000. This is military level and therefore excellent for use in precision applications. ABEC 5 standard: this bearing must pass all tests; these are noise at high speed, very close tolerances in terms of accuracy regarding inner and outer diameter, perfect sphericity, correctness of the trajectory and the finish of both trajectory and bullet. These bearings are treated with a high-quality Teflon lubricant (Rheolube 374A). 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 notch 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 that rubs against an uneven surface, the LLB type uses 2 lips of seals, fine like a razor blade that slides in a notch with a light contact. The outer «lip» keeps out water and impurities, while the inner seal retains grease for smooth rotation and long intervals between services.

Item number 71902LLB EAN 810191013334 Brands Enduro Type ABEC 5 Bearing inner diameter (mm) 15 Bearing outer diameter (mm) 28 Bearing height (mm) 7 71902 LLB - ABEC-5 Angular contact bearing (C3 Clearance) - 15mm x 28mm x 7mm Improve your cycling performance with these high-quality angular contact bearings, ideal for hub applications and suitable as a spindle bearing. The MAX type version offers better suspension compatibility. This ABEC-5 bearing features deep grooves, Grade 10 balls and double-lip labyrinth (LLB) seals that can withstand daily use and weather. It is pre-filled with 90% Mobilux NGLI 2 waterproof synthetic grease for optimal performance. When properly installed (black sealing lip facing inwards) and adjusted, all balls provide even force distribution, which reduces friction, minimizes wear and extends life. Made from high-carbon chrome steel, 440C stainless steel, ceramic-hybrid or XD-15 with ceramic or stainless steel balls, our bearings are designed with deep grooves to accommodate larger balls and feature double-lip seals that ride in micro-grooves for superior protection against the elements. Static load___ 558 lbf / 2,482 kN. Weight: 15g.