A Study of Global Friction Coefficient and the Starting Moment Variation for Radial Bearings

Abstract

This paper proposes a precise method of global friction coefficient and the starting moment variation for three different radial bearings. For this purpose, a device was used made by a three-wheeled carriage, loaded with low gravitational loads and a high-precision tribometer on the principle of an inclined plane. The mathematical relations for computing the starting moment are further presented, as well as the experimental results obtained for 6202, 6302 and 6204 radial bearings, respectively. The proposed experimental method is very fast and accurate.