Enduro Bearings ABEC-5 XD-15 Ball Bearing - 17x28x7mm - CXD MR 17287 LLB

The ultimate upgrade! XD15 ceramic hybrid bearings are exclusive to Enduro Bearings and combine corrosion-resistant, cryogenically treated nitrogen steel raceways with grade 5 silicon nitride balls in a proprietary process that results in the ultimate high-performance bearing configuration. The deep raceways allow the use of grade 5 silicon nitride balls in maximum size for greater contact area and improved performance and longevity. Double-lip labyrinth seals (LLB) protect against weathering and contain 90% Kluber NBU52 grease, which becomes increasingly supple over time and is highly resistant to washout. The most impressive feature of XD15 ceramic hybrid bearings is that, unlike other bearings, they get better with time and use. As the bearings wear, the super-hard ceramic balls ensure that the XD15 raceways run even more smoothly. Compared to other ceramic hybrid bearings on the market that promise speed and performance advantages from day one, Enduro XD15 bearings not only offer the same initial advantages, but actually become faster and smoother over time and with use, while other ceramic hybrid bearings only slow down.