Designed to fit Spanmaster trolleys 16-103A,16-103J,16-103K and 16-103L (flangeless 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.