Xray Ceramic Ball-Bearing Axial F3-8 3X8X3.5
High-precision axial thrustbearing 3×8×3.5mm for ball differential features ceramic balls. Highest-quality material and design guarantees the smoothest diff operation and increased life. Ceramic balls in the axial cage are made from extra-hard Si3N4 silicone nitride ceramic. Significantly improves differential lifespan while reducing friction and vibration. Higher RPM capabilities.