Designed to fit Spanmaster trolleys 16-104A,16-104K and 16-104L (flanged wheel) on 100 and 200

series track. Regreasable or Nonregreasable wheel assembly. Replacement Parts wheels are made from

high strength steel or per customer's specifications and the treads and flanges are induction hardened

to Rockwell 45 to 50. The wheel bearing bores are remachined after the wheels have been heat treated

to assure proper concentricity. High quality precision ball or roller bearings are used on a machined

steel axle to assure long life and easy rolling.