The XD-15 combines a hardened outer race with silicon nitride ceramic balls, oversized in an exclusive manufacturing method that ensures a very high-quality bearing. These bearings are 5 times more corrosion resistant than 440C stainless steel balls. These bearings rotate with less resistance than anything we have developed to date, with oversized Grade 3 ceramic balls. LLB: Our most popular seal, consisting of a rubber finish with a metal core. Unlike standard 2RS, we go a little further by machining a recess in the inner ring, where the seal can rotate with excellent efficiency and reduced bearing resistance. Rather than a single "lip" of a thick seal rubbing against an uneven surface, the LLB type uses 2 razor-thin sealing lips 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 CH6903LLB EAN 185843000940 Brand Enduro Outer bearing diameter (mm) 30 Inner bearing diameter (mm) 17 Bearing height (mm) 7 Type CERAMIC HYBRID ABEC 5