Journal Published Online: 10 February 2015
Volume 44, Issue 4

Effect of Bushing Miniaturization on the Static Friction Coefficient

CODEN: JTEVAB

Abstract

As machines become smaller, friction plays an increasingly important role in their performance. Although friction is a well-studied phenomenon, few studies have been performed on bushings and shafts with loads of a few tens of mN and dimensions of a few mm. In this work, the static friction coefficient is investigated for a miniature steel shaft rotating in bronze SAE 40 bushings. A new approach is presented to measure the static friction coefficient of a miniature bushing. The coefficient was evaluated without lubrication. It shows a linear dependence at loads higher than 152 mN and a nonlinear dependence at loads smaller than 152 mN.

Author Information

Olvera-Tapia, Omar
Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, México D. F., MX
Kussul, Ernst
Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, México D. F., MX
Rodríguez-Lelis, José
National Center of Research and Technological Development Interior Internado Palmira S/N, Palmira Cuernavaca, Morelos, MX
Baidyk, Tatiana
Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, México D. F., MX
Sanchez, José
Centro de Ciencias Aplicadas y Desarrollo Tecnológico, Universidad Nacional Autónoma de México, Circuito Exterior S/N, Ciudad Universitaria, México D. F., MX
Pages: 10
Price: $25.00
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Details
Stock #: JTE20140284
ISSN: 0090-3973
DOI: 10.1520/JTE20140284