Bearing Enduro Bearings MR 18307 LLB ABEC 3

MR 18307 LLB – ABEC-5 radial bearing with C3 clearance, 18mm x 30mm x 7mm.

This ABEC-3 bearing has deep-groove races, Grade 10 balls, light-contact dual-lip LLB labyrinth seals, and a 90% fill of high-pressure waterproof grease to withstand daily use and the elements.

A radial bearing generally used in hubs and as a bottom bracket bearing for some older square-taper bottom brackets, it can also be used as a pivot bearing, although the MAX-type version of this bearing is better suited to suspension use. This bearing often replaces bearings marked 6903 in front hubs from DT Swiss, Giant and Bontrager, although its inner diameter is 1mm larger than that of a standard 6903.

Enduro bearings are available in high-carbon chromium steel, 440C stainless steel, ceramic-hybrid construction, and XD-15 with ceramic or stainless steel balls. The bearings are engineered with the deepest possible groove races to accommodate the largest balls. Their dual-lip seals ride in a micro-groove, creating a full labyrinth to provide protection against the elements.

Static load – 576lbf / 2.56kN
Weight – 15.1g