Jiuyan Bearing, brand YST, specializes in R&D and manufacturing of precision angular contact ball bearings. Integrating design, production, sales, and service, we offer efficient, reliable products with end-to-end support. Main series include 718, 719, 70, 72, 73, 760, BS, BNR, and NN. Size ranges: inner diameter 6-280mm, outer diameter 17-420mm. Accuracy classes: P5, P4, P2. Serving seven industries.