New Parameter Proposed for Industrial Acceptance Measurements of Rolling Bearings

Abstract

The frictional moment, together with vibrations and durability, is one of the most important parameters determining the quality of bearings and their suitability for the intended applications. The frictional moment value allows for obtaining essential information about the bearing, both in terms of its structure, the quality of mating elements, cleanliness and the specific qualities of the lubricant used. Since bearings are commonly used in the automotive industry, machine industry and household appliances, the need to reduce friction in rolling bearings is critical to increase the bearing efficiency, reduce energy consumption and protect the environment. The article presents a new industrial device for testing the bearing frictional moment of rolling bearings at the stage of their production. The device is characterized by an innovative design that allows for testing a wide range of bearing dimensions, applying significant axial loads, additional measurement of the mounting width of the bearings, and most importantly, testing the cone bearings. This article presents the general assumptions and the mechanical design of the new device for measuring the frictional moment of rolling bearings, as well as the verification of the device indications based on a measurement procedure performed in industrial conditions.