30210 Tapered Roller Bearing 50x90x21.75mm Single Row for Automotive Transmission Product Overview 302 series are standard single row tapered roller bearings widely used in general industry and automotive fields. This series features moderate taper angle, mainly for medium radial and one‑way axial combined loads. Adopting classic separable structure, the bearings are easy to install, disassemble and adjust clearance. Made of high quality GCr15 bearing steel with precise heat