• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1993 Fiscal Year Final Research Report Summary

Study on Performance and Mechanism of Breakage of Solid Film Lubricants Lubricants of Gears

Research Project

Project/Area Number 04650134
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 機械要素
Research InstitutionTottori University

Principal Investigator

KOIDE Takao  Faculty of Eng., Tottori Unvi., Assoc.Prof, 工学部, 助教授 (60127446)

Co-Investigator(Kenkyū-buntansha) KAWAGOE Haruo  Faculty of Eng., Tottori Univ., Professor, 工学部, 教授 (60032009)
MIYACHIKA Kouitsu  Faculty of Eng., Tottori Univ., Assoc.Prof, 工学部, 助教授 (30157664)
ODA Satoshi  Faculty of Eng., Tottori Univ., Professor, 工学部, 教授 (50032016)
Project Period (FY) 1992 – 1993
KeywordsGear / Vacuum / Friction / Wear / Efficiency / Solid Film Lubrication / Plastic
Research Abstract

The friction and wear characteristics of gears in vacuum were investigated. The gear testing machine of power circulating type with a vacuum chamber was developed, in which the coeffiiet of friction between the contacting tooth surfaces, and the temperatures of the gear teeth and the shaft can be measured under various running conditions. The running test for S45C, SUS440C, MoS_2 coated SUS440C, Duracon and Nylon gears were carried out in air and vacuum environment by using the gear tsting machine, and the coefficient of friction between the contacting tooth surfaces, the wear of the gear teeth and temerature changes of the gear teeth, the shaft, etc. were measured. On the basis of these tesults, the friction and wear characteristics of gears in vacuum were determined to a considerable extent.
The main results obtained from this investigation are summarized as follows.
1. The coeficient of friction of S45C gears in vacuum is larger than that in air, but that of SUS440C gears in vacuum is smaller and those of MoS_2 coated SUS440C, Duracon and Nylon gears in vacuum are almost equal to those in air.
2. The efficiency of S45C gears in vacuum is lower than that in air, but those of SUS440C, MoS_2 coated SUS440C, Duracon and Nylon gears in vacuum are almost equal to those in air.
3. The amounts of wear of S45C and SUS440C gears in vacuum are smaller than those in air, but those of MoS_2 coated SUS440C, Duracon and Nylon gears in vacuum are almost equa to those in air.
4. The life against the scoring of gears s improved considerably by coating the solid film lubricant on the tooth surfaces.
Thus the friction and wear characteristics of gears in vacuum was determined, and the useful data for the design of gears in vacuum environment obtained from this investigation.

  • Research Products

    (2 results)

All Other

All Publications (2 results)

  • [Publications] 小田 哲: "真空中における固体潤滑およびプラスチック歯車の摩擦・摩耗特性" 日本機械学会講演論文集. 935-1. 256-258 (1993)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Oda, Satoshi: "Friction and Wear Characteristics of Gears with Solid Lubricant and Plastic Gears in Vacuum" Prepr.of Jpn.Soc.Mech.Eng. Vol.935-1. 256-258 (1993)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1995-03-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi