Influence of grease rheology on thrust ball bearings friction torque

被引：43

作者：

Cousseau, Tiago ^{[1
]}

Graca, Beatriz M. ^{[1
]}

Campos, Armando V. ^{[1
]}

Seabra, Jorge H. O. ^{[1
]}

机构：

[1] Inst Super Engn Inst Politecn Porto ISEP IPP, Oporto, Portugal

来源：

TRIBOLOGY INTERNATIONAL | 2012年 / 46卷 / 01期

关键词：

Greases; Grease rheology; Rolling bearing; Friction torque;

D O I：

10.1016/j.triboint.2011.06.010

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The friction torque and the operating temperatures in a thrust bail bearing were measured for seven different types of greases, including three biodegradable greases having low toxicity. These friction torque tests were performed using a modified Four-Ball machine. Rheological evaluations of the lubricating greases were made using a rheometer. Bleed oils were extracted from the greases and the dynamic viscosities were measured. In order to compare the performance of the lubricant greases in terms of friction, the grease characteristics were related to experimental results, showing that the interaction between thickener and base oil have strong influences in the bearing friction torque. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：106 / 113

页数：8

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