Next Article in Journal / Special Issue
Analysis of the Journal Bearing Friction Losses in a Heavy-Duty Diesel Engine
Previous Article in Journal
Numerical Treatments of Slipping/No-Slip Zones in Cold Rolling of Thin Sheets with Heavy Roll Deformation
Previous Article in Special Issue
Survey of Damage Investigation of Babbitted Industrial Bearings
Article Menu

Export Article

Open AccessArticle
Lubricants 2015, 3(2), 132-141;

Frictional Characteristics of a Small Aerostatic Linear Bearing

School of Science and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
Faculty of Engineering, Rajamangala University of Technology Isan, No. 744 Suranarai Road, Muang, Nakhon Ratchasima 30000, Thailand
School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
Author to whom correspondence should be addressed.
Academic Editors: Romeo P. Glovnea and Michel Fillon
Received: 2 February 2015 / Revised: 9 March 2015 / Accepted: 16 March 2015 / Published: 2 April 2015
(This article belongs to the Special Issue Friction and Lubrication of Bearings)
Full-Text   |   PDF [599 KB, uploaded 7 April 2015]   |  


Frictional characteristics of a small aerostatic linear bearing are accurately evaluated by means of a method, in which the force acting on the moving part of the bearing is measured as the inertial force. An optical interferometer is newly developed to measure the Doppler shift frequency of the laser light reflected on the small moving part. From the measured time-varying Doppler shift frequency, the velocity, the position, the acceleration and the inertial force of the moving part are numerically calculated. It is confirmed that the dynamic frictional force acting inside the bearing is almost proportional to the velocity of the moving part and is similar to the theoretical value calculated under the assumption that the flow inside the bearing is the Couette flow. View Full-Text
Keywords: air bearing; aerostatic bearing; pneumatic bearing; inertial force; inertia mass; optical interferometer air bearing; aerostatic bearing; pneumatic bearing; inertial force; inertia mass; optical interferometer

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Araki, R.; Takita, A.; Nachaisit, P.; Shu, D.-W.; Fujii, Y. Frictional Characteristics of a Small Aerostatic Linear Bearing. Lubricants 2015, 3, 132-141.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Lubricants EISSN 2075-4442 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top