Affordable Access

Publisher Website

The surface strength of gears and the rheological characteristics of lubricants

Authors
Journal
Wear
0043-1648
Publisher
Elsevier
Publication Date
Volume
127
Issue
1
Identifiers
DOI: 10.1016/0043-1648(88)90049-x

Abstract

Abstract A full numerical solution is presented for the pressure, oil film thickness, temperature and shear stress for a gear surface using the theory of nonnewtonian thermal elastohydrodynamic lubrication. The equivalent stress distribution in the gear subsurface is obtained under various rolling-sliding ratios. The results of this paper successfully explain why pitting failure usually occurs near the pitch point where the rolling-sliding ratio is lower. Moreover, it is implied that by controlling the limiting shear stress of the lubricant τ L , the flash temperature in the contact zone can be reduced. The analysis in this paper is also very useful for choosing gear surface hardening parameters.

There are no comments yet on this publication. Be the first to share your thoughts.