1. Product Overview B33Z-15 non-standard single-row open deep groove ball bearing, overall dimension 33mm inner bore × 60mm outer diameter × 15mm width. The suffix Z stands for precision superfinished raceway with lower friction, fully interchangeable with original NSK B33Z-15, widely matched for Toyota K310, K313 series CVT intermediate auxiliary transmission shafts. Open design without rubber sealing rings, equipped with stamped low-carbon steel cage and standard C0