XRAY made Ball-bearing 10x15x4 Rubber Sealed Grease 2 (941014) T4 2017 Specs (300023) T4 Series
High-speed ball-bearings produced specifically for XRAY. ID x OD x level (mm) = 10x15x4. Top-quality specialist ball-bearings for a super-free, super-smooth drivetrain. These top-notch ball-bearings are fitted with unique rubber covers, packed with special oil for optimum smoothness, longevity, best limit and maximum performance. Group of 2.