Enduro bearings 71806 llb a5 - abec 5 (angular contact) - 30x42x7

ABEC 5: 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 5: Steel balls Grade 5: balls with a sphericity with a precision of 5/1,000,000. This is military grade and therefore excellent for precision applications. ABEC 5 standard: this bearing must pass all tests; these include high-speed noise, very tight tolerances concerning accuracy of inner and outer diameter, perfect sphericity, track accuracy and the finish of both track and ball. 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 step further by machining 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 sealing lips, as 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 71806LLB EAN 810191013402 Brands Enduro Bearing height (mm) 7 Inner diameter bearing (mm) 30 Outer diameter bearing (mm) 42 Type ABEC 5 71806 LLB - ABEC-5 Angular Contact Bearing for Bottom Bracket Improve your cycling performance with the 71806 LLB bearing for bottom bracket, featuring an ABEC-5 angular contact design for optimal load distribution and durability. Made with high-quality 52100 high-carbon chrome alloys and Grade 5 balls with 90% fill, this bearing is filled with high-pressure and waterproof grease. When correctly installed (with the black seal for BBs) and adjusted, the angular contact design ensures that all balls make contact simultaneously, distributing the force over a larger surface, reducing wear and extending service life. Ideal as a replacement bearing for BB30, PF30, BB386 and other bottom brackets with a 30 mm outer diameter. Available in high-carbon chrome steel, 440C stainless steel, ceramic-hybrid and XD-15 with ceramic or stainless steel balls. Our bearings have deep grooves in the raceways to accommodate larger balls and double-lip seals with micro-grooves for superior protection against the elements. Static load___ 854 lbf / 3.80 kN. Weight: 22.4 g.