Cool ideas for sleeve bearings reducing bearing temperature improves performance, But not all cooling techniques offer the same benefits.

Document Type

Article

Publication Date

4-23-2009

Abstract

Some significant options for cooler-running bearings and the benefits of each methods are presented. An easy process to lower bearing temperature is using lower-viscosity oil. Technicians then can monitor the sleeve temperature with a thermocouple embedded in the babbitt liner about 30° beyond the vertical load line. Lowering the inlet-oil temperature makes a marginal value in reducing maximum bearing temperature, while dropping the feed oil can lower mean bearing temperatures. Leakage can increase power loss in the bearing but keeps bearing temperature from reducing despite of the cooler oil film. Bore modification or changing the bearing's internal geometry can also play a significant role in reducing operating temperature. Bearing temperature can also be reduced by reducing oil-feed temperature or using large bearing-bore clearance.

Publication Source (Journal or Book title)

Machine Design

First Page

44

Last Page

47

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