1, taper roller bearing 2, Dimensions: 25mm*52mm*19.25mm 3, approximate weight:0.187kg 4, model:32205 5, certificate standard: ISO9001:2000 6, ABEC-1 7, material:bearing steel 8, 30202 to 30218,30303 to 30318 9, 32004X to 32018X,etc. could be supplied