Ball-Bearing 5x12x4 Rubber Sealed - Oil (2)

The XRAY Ball-Bearing 5x12x4 Rubber Sealed - Oil is a genuine high-speed precision bearing manufactured specifically for XRAY vehicles, sized 5mm ID x 12mm OD x 4mm thickness. Each bearing features special rubber covers that seal out dirt and debris while remaining removable for servicing, and the bearings are degreased and lightly oiled with AeroShell Fluid 12 oil for maximum smoothness and reduced rolling resistance. Compared to standard bearings, these are built with an increased ball count and size for greater load resilience, suiting the demands of competitive racing conditions. Sold as a set of 2, this bearing size is used across the XRAY XT2, XB2, and XB4 platforms wherever this specific ID/OD/thickness combination is called for in the driveline or steering assembly. Because the side covers are removable, racers can periodically clean and re-oil these bearings rather than replacing them outright, extending their service life between rebuilds. This is an ideal pickup for owners performing routine drivetrain maintenance, replacing worn or contaminated bearings, or upgrading from stock bearings for smoother, more efficient rolling performance. A genuine XRAY component built for consistent, race-ready reliability.