Xray High-Speed Ball-Bearing 5X12X4 Rubber Sealed (2) 940512

Xray High-Speed Ball-Bearing 5×12×4 Rubber Sealed (2)

New high-speed ball-bearings manufactured specially for XRAY. ID x OD x thickness (mm) = 5×12×4. Set of 2 pieces. Top-quality professional ball-bearings for a super-free, super-smooth drivetrain. These highest quality ball-bearings are fitted with special rubber covers, and are degreased and lightly oiled with AeroShell Fluid 12 oil for maximum smoothness, long life, highest tolerance and maximum performance. These ball-bearings have more (and larger) balls inside the cage than the regular ball-bearings, making them much more resilient under loads. The side covers are easy to remove for quick and easy maintentance.