Bearings are essential parts used in machine tools where high precision is required. It is important to understand bearing failure in order to replace a bearing before it affects the quality of precision. Bearing failure appears as a run-out in some applications, which is a critical factor for precision. However, previous studies have only focused on failure mechanisms, such as spalling. In thi...

Tapered roller bearings are used partly in very rough and highly stressful environmental conditions. Therefore, the need for condition monitoring is increasing. This study intended to provide an approach a two-stage planetary gearbox based on vibration analysis. In total, data of six damage phenomena one healthy bearing collected. A convolutional neural network (CNN) trained evaluated by using ...

In order to improve the service life of needle roller bearing used in a precision cycloid reducer, and reveal skew collision phenomenon bearing, based on force analysis transmission mechanism reducer considering friction between wheel, roller, cage, crank shaft, dynamic contact rolling bodies is simulated by Hertz elastic contact, where cage pocket hole equivalent spring damping, nonlinear mode...

In the context of targeted improvements in energy efficiency, secondary rolling bearing contacts are gaining relevance. As such, elastohydrodynamically lubricated (EHL) roller face/rib contact tapered bearings significantly affects power losses. Consequently, this contribution aimed at numerical optimization pairing’s macro-geometric parameters. The latter were sampled by a statistical design e...

Abstract Frictional losses occur in tapered roller bearings, particularly at low rolling speeds, which pose a risk of wear. The increased friction are result insufficient lubricant film thicknesses the and rib contact. Micro-lubrication dimples can be used to induce additional into contact zone minimize friction. aim this paper is therefore implement suitable machining strategy for production d...