Stainless Steel Spherical Roller Bearing (21300, 22200, 22300, 23100, 23200, 24000, 24100, 23900 series ) 239/710 23220 22212 22215 23222 22214 1) Series: 21300 series, 22200 series, 22300 series, 23100 series, 23200series, 24000 series, 24100 series and 23900 series 2) Material of rings and rollers: Chrome steel; GCr15 and GCr15SiMn, stainless steel, carbon steel 3) Material of cages: Brass, steel and nylon 4) Precision: P0, P6