This is a stud type track roller built as a double row self-retaining angular contact ball bearing with a particularly thick-walled outer ring, ball and cage assembly, and a solid, long roller stud fitted with an external thread. There is no eccentric collar. The outside diameter is 72.0 mm, overall width 74.1 mm, and net mass 0.8 kg. Axial guidance of the outer ring is provided directly by the balls. A hexagonal socket is present only on the flange-side end face, serving as an assembly aid. Sealing is of type 2RS, with lip seals fitted on both sides giving axial sealing action, which keeps contaminants out of the rolling contact during running along a track or cam surface. There is no relubrication facility, so the bearing is intended to run on its initial fill without periodic grease replenishment. The thick-walled outer ring and ball guidance make this roller suited for direct rolling contact applications where radial load is carried on the outer ring surface and where the stud with external thread allows straightforward axial mounting.