1.Single Row – 60xx, 62xx, 63xx, 64xx series
2.Thin Type – 67xx, 68xx, 69xx Series
3.Double Row – 42xx, 43xx Series
4.Open basic design
5.Sealed/shield types
6.With snap ring groove
7.With snap ring groove and snap ring
8.With extended inner ring
9.K type with spherical outer ring
10.With Flange design
11.Pressed steel, riveted and nylon cage
12.With C2, CN, C3, C4 and C5 radial clearance
13.Standard precision grade (ISO Grade P0 – ABEC1) and higher precision grade (ISO Grade P6 – ABEC3)