Patent ID: 6205929
Filing Date: 2001-03-27
Classification: B60B,B61B,B65G,Y10T

Abstract:
An improved wheel assembly comprising:(a) a center wheel having a first hole and a first diameter, wherein said center wheel is constructed of an abrasion resistant material;(b) a first end plate having a second hole and a second diameter, wherein said first end plate is constructed of a material less brittle than said abrasion resistant material;(c) a second end plate having a third hole and a third diameter;(d) wherein said second end plate is constructed of a less brittle material than said abrasion resistant material;(e) wherein said second diameter and said third diameter are greater than said first diameter;(f) wherein said first hole and said second hole are substantially aligned;(g) an axle extending through said first hole, said second hole, and said third hole; and(h) means securing said first end plate and second end plate to said center wheel.