... per your requirement Tapered Roller Bearing, Made of Chrome Steel, Carbon Steel, and Stainless Steel MaterialsKey Specifications/Special Features ... 30300, 32200, 32300, 33000, and more Ring material: chrome steel, carbon steel, and stainless steel Tolerance grade: GB/T307.1 ... and stock within 7 days Applications: home appliances, low noise and high speed electric motors, automotive components, pumps ...