Browse Publications Technical Papers 2024-01-3047

Evaluation of friction torque in tapered roller bearings 2024-01-3047

A bearing is a mechanical component that facilitates rotation and supports loads. Bearings are differentiated into ball bearings and tapered roller bearings, depending on the rotating mechanism. Tapered roller bearings, known for their superior load-bearing capabilities compared to ball bearings, are utilized in high-load applications such as commercial vehicle and truck wheel bearings, aircraft and high-speed train components, and heavy machinery spindles. With the growing emphasis on CO2 emission reduction and fuel efficiency in the automotive industry, there's an increasing demand to minimize driving friction torque. This has highlighted the importance of research into the driving friction torque of bearings. Although numerous studies have explored lubrication, friction, and contact phenomena in tapered roller bearings, including aspects like lip friction and roller misalignment and skew, investigations into the effects of roller shape and material properties have been limited. This study aims to analyze the friction torque in tapered roller bearings, taking into account various uncertainties. It begins with calculating the driving friction torque under axial loads, followed by a comparison with experimental findings. Furthermore, Monte Carlo simulations were conducted to assess the impact of geometric and material uncertainties, such as roller geometric deviations and variations in oil viscosity. The outcomes of these simulations are thoroughly examined.


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