These inner race rotates bearings are for use in Tilton Hydraulic Release Bearing Assemblies. They are available with 38, 44, or 52mm contact diameters. High speed versions contain a special grease which improves durability on engines revving beyond 8000 RPM.
The 38mm bearings have 2 insert heights.
62-008 has a 0.197`` tall insert
62-0085 has a 0.150`` tall insert