- Steel: from 30 to 101.6 mm outer diameter
- Galvanized steel: from 30 to 101.6 mm outer diameter
- Steel: from 10 to 40 mm, axle end plain, SW or threaded
- Galvanized steel: From 10 to 40 mm, axle end smooth, SW or thread
- Chain sprocket or sprocket roller base as required
- Grooved ball bearings from 6000 to 6308 DIN 625
- ball overturned, conical overturned, with patented labyrinth seal, rubberized u.v.m.