Cylindrical roller bearing cage pocket lubrication

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

Tribology International Pub Date : 2023-10-01 DOI:10.1016/j.triboint.2023.108851

Saeed Aamer , Farshid Sadeghi , Andreas Meinel

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引用次数: 0

Abstract

The objectives of this investigation are to determine the effects of cage pocket conformality on lubrication in a cylindrical roller bearing (CRB) cage. A custom Bearing Cage Friction Test Rig (BCFTR) was configured with a sealed enclosure to emulate a lubricant bath environment. The enclosure was designed to accommodate CRB raceway segments and swappable cage pockets with adjustable roller-pocket clearance. Three transparent cage segments were fabricated with differing pocket conformality with respect to the roller surface. A high-speed camera was used to visualize the in-situ lubricant flow within the roller-pocket contact for all cage types. An equivalent two-phase computational fluid dynamics (CFD) model was developed using Ansys Fluent software. The CFD results corroborated well with the experimentally observed trends of lubricant distribution and cage pocket friction. The findings demonstrated that the impact of pocket conformality was two-fold. The least conformal pocket design experienced minimum pocket friction. However, the same design introduced challenges with retaining lubricant at the roller-pocket contact and increasing air entrapment in the oil.

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圆柱滚子轴承保持架套筒润滑

本研究的目的是确定保持架袋一致性对圆柱滚子轴承保持架(CRB)润滑的影响。定制轴承保持架摩擦试验台(BCFTR)配置了一个密封的外壳来模拟润滑油浴环境。该外壳的设计，以适应CRB滚道段和可互换的笼袋与可调的滚轮袋间隙。三个透明保持架段相对于滚子表面具有不同的口袋一致性。高速摄像机用于可视化所有保持架类型的滚子-袋接触内的原位润滑剂流动。利用Ansys Fluent软件建立了等效两相计算流体动力学(CFD)模型。CFD计算结果与实验观察到的润滑油分布和笼袋摩擦趋势吻合较好。研究结果表明，口袋一致性的影响是双重的。最小保角口袋设计的口袋摩擦最小。然而，同样的设计也带来了在滚子袋接触处保留润滑剂和增加油中的空气夹持的挑战。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tribology International 工程技术-工程：机械

CiteScore

10.10

自引率

16.10%

发文量

627

审稿时长

35 days

期刊介绍： Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International. Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.