Wheel assembly and method of forming such assembly

Abstract From the Canadian patent

A wheel assembly includes first and second wheel halves each having an outer annular rim with a valley portion and an integral wall with external and internal surfaces. Each wheel half is shaped at its center to form an opening extending through said wall with the, wall defining the opening including a flange like portion extending in a direction normal to the plane of the external surface of said integral wall. The wall defining opening functions as an annular bearing seat. A bearing includes a pair of spaced generally cylindrical flanges of a first diameter joined by a generally cylindrical intermediate portion of a diameter somewhat smaller then the first diameter. The cylindrical …