headerphoto

Volume 41, No 3, 2019, Pages 311-320


Download full text in PDF

Fundamental Study on No-lubricating Friction Characteristics Due to Anisotropy of Surface
Properties Applied to Differential Gear

Authors:

Y. Ebisuno* , Y. Sato , M. Fukumoto

DOI: 10.24874/ti.2019.41.03.01

Abstract:

The solid frictional characteristics of surface roughness in combination with anisotropy were systematically investigated through linear reciprocating sliding tests on planar surfaces with no lubrication. Four types of test pieces with anisotropy and varying amounts of surface roughness controlled by polishing were prepared. For test pieces #800 and #3000, their friction coefficients did not change significantly based on anisotropic combination conditions and remained relatively constant at 0.35. In contrast, for test pieces #80 and #150, their friction coefficients changed significantly based on anisotropic combination conditions. Their friction coefficients were approximately 0.45 when their crease directions were parallel and sliding directions were orthogonal, approximately 0.3 when their crease directions and sliding directions were both parallel, and approximately 0.15 when their crease directions were orthogonal and sliding direction were parallel. Therefore, the anisotropic combination conditions in which test pieces #80 and #150 had orthogonal crease directions and parallel sliding directions yielded the smallest friction coefficient.

Keywords:

Friction, Surface roughness, Anisotropic roughness, Crease direction, No lubrication



Last Edition


tribology

Volume 41
Number 3
September 2019


Crossref logo




Announcements


TiI news RSS 2.0

Table of contents


News


16th International Conference on Tribology SERBIATRIB 19

30 Years Long Tradition of Serbiatrib Conference