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Experimental exploration for the performance improvement of a thrust ball bearing using circumferential micro-grooved races
Surface Topography: Metrology and Properties ( IF 2.7 ) Pub Date : 2021-08-06 , DOI: 10.1088/2051-672x/ac1917
V Bhardwaj 1 , R K Pandey 2 , V K Agarwal 1
Affiliation  

This paper presents the findings of an experimental study performed for exploring and improving the tribodynamic performance behaviours of a thrust ball bearing employing circumferential micro-grooves on the stationary upper race. Investigations were conducted using oil and grease lubricants and operating the bearings at light loads (in the vicinity of requisite minimum loads characterised by pH =0.4 and 0.6 GPa) and speeds varying in the range of 1.8–4.0 m s−1 at the ambient condition. The effects of micro-grooved stationary races on frictional torque, temperature rise and vibrations of the bearings were measured and have been discussed herein. The surface topographies of races and balls of used test bearings were examined after finishing the experiments for extracting the surface topographies based technical information. Significant reductions in the magnitudes of frictional torque (14%–21%), bulk temperature rise of race (14%–26%), vibrations (7%–34%) were found with micro-grooved bearings (pair of conventional moving lower races and micro-grooved upper stationary races) in comparison to the conventional bearings (pair of conventional races). Moreover, the oil lubricated micro-grooved bearings yielded substantial improvement in the tribo-dynamics as compared to grease lubricated case irrespective of the operating parameters i.e. loads and speeds.



中文翻译:

周向微槽滚道提高推力球轴承性能的实验探索

本文介绍了一项实验研究的结果,该研究旨在探索和改进在固定上座圈上采用圆周微槽的推力球轴承的摩擦动力学性能行为。研究是使用油和油脂润滑剂进行的,并在轻负载(在必要的最小负载附近,特征为p H =0.4 和 0.6 GPa)和在 1.8-4.0 ms -1范围内变化的速度下运行轴承在环境条件下。测量了微槽固定座圈对轴承摩擦扭矩、温升和振动的影响,并在此进行了讨论。在完成基于技术信息提取表面形貌的实验后,对使用过的测试轴承的滚道和滚珠的表面形貌进行了检查。使用微槽轴承(一对传统的移动低座圈和微槽上部固定座圈)与传统轴承(一对传统座圈)相比。而且,

更新日期:2021-08-06
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