1. Product Overview B28-35 non-standard single-row open deep groove ball bearing, overall dimension 28mm inner bore × 63mm outer diameter × 35mm ultra-wide width, small inner hole plus extra wide heavy-load structure, fully interchangeable with original NSK B28-35, matched for various passenger car CVT driven pulley large torque transmission system. Open design without rubber sealing rings, equipped with stamped low-carbon steel cage and factory standard C0 internal clearance