Patent ID: 8833862
Filing Date: 2014-09-16
Classification: B60B

Abstract:
1. A wheel having a circular profile with an outer diameter, the wheel comprising: a wheel body including first and second oppositely disposed support members, said wheel body having a rotational axis; and a plurality of rolling elements coupled to said wheel body and extending between said first and second support members, each said rolling element comprising an elliptical carrier body and a smooth, homogenous polymeric coating on said elliptical carrier body, said polymeric coating having a constant thickness along a lengthwise direction of said elliptical carrier body; each said rolling element having a rolling axis inclined obliquely to said rotational axis of said wheel body and having an outer rolling surface with an arcuate profile in a section plane through and aligned with said rolling axis, said arcuate profile defined by a maximum radius; wherein a ratio of the outer diameter of the wheel to said maximum radius is approximately 1.08 to approximately 1.13.