A Comparison Study on the Performance of Four Types of Oil Lubricated Hydrodynamic Thrust Bearings for Hard Disk Spindles-Reference-Cited by-同舟云学术

A Comparison Study on the Performance of Four Types of Oil Lubricated Hydrodynamic Thrust Bearings for Hard Disk Spindles

Published:1999-01-01 Issue:1 Volume:121 Page:114-120
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Zhu Jiasheng¹,Ono Kyosuke²

Affiliation:

1. Graduate School of Tokyo, Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

2. Department of Mechanical Engineering and Science, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan

Abstract

In this paper, the static and dynamic performance of herringbone, step-pocket, taper-pocket, and taper-flat thrust bearings were numerically analyzed. Optimal values for the design parameters of each type of bearing were analyzed in terms of both maximum axial stiffness (kzz) and maximum ratio of axial stiffness to friction torque (kzz/T) and bearing performance for both cases was calculated. The optimal performance characteristics of these bearings were compared in terms of application to hard disk spindles. Step-pocket and taper-pocket thrust bearings are superior to herringbone and taper-flat thrust bearings with respect to both the maximum kkk and the maximum kzz/T conditions. It was found that the dams of thrust bearings with pockets play an important part in improving the hearing performance. It was made clear that the taper-pocket and the taper-flat thrust bearings have a much larger load capacity than the other two types of thrust bearings in the proximity of zero clearance.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/tribology/article-pdf/121/1/114/5819375/114_1.pdf

Reference14 articles.

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3. James D. D. , and PotterA. F., 1967, “Numerical Analysis of the Gas-Lubricated Spiral-Groove Thrust Bearing-Compressor,” ASME JOURNAL OF LUBRICATION TECHNOLOGY, Vol. 89, No. 4, pp. 439–444.

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