A special four-gear rig has been used to determine gear tooth frictional losses at loads and speeds representative of engineering practice using a gas-turbine engine oil. The effect of surface finish has been investigated by comparing the frictional losses of conventionally ground teeth (with roughness average, Ra, of approximately 0.4 μm) with those of teeth which were superfinished to approximately 0.05 μm Ra. It was found that superfinishing resulted in a reduction of friction of typically 30 percent with correspondingly lower tooth surface temperatures under the same conditions of load and speed. Film generation and frictional traction in the experiments were simulated theoretically using a thin film non-Newtonian micro-elastohydrodynamic lubrication solver, and encouraging agreement between friction measurements and theoretical predictions was obtained. [S0742-4787(00)04701-9]
Skip Nav Destination
Article navigation
January 2000
Technical Papers
Effect of Surface Finish on Gear Tooth Friction
R. D. Britton,
R. D. Britton
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
Search for other works by this author on:
C. D. Elcoate,
C. D. Elcoate
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
Search for other works by this author on:
M. P. Alanou,
M. P. Alanou
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
Search for other works by this author on:
H. P. Evans,
H. P. Evans
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
Search for other works by this author on:
R. W. Snidle
R. W. Snidle
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
Search for other works by this author on:
R. D. Britton
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
C. D. Elcoate
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
M. P. Alanou
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
H. P. Evans
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
R. W. Snidle
School of Engineering, Cardiff University, Cardiff CF23TA, Wales, United Kingdom
Contributed by the Tribology Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS and presented at the STLE/ASME Tribology Conference, Orlando, FL, October 10–13, 1999. Manuscript received by the Tribology Division January 21, 1999; revised manuscript received May 21, 1999. Paper No. 99-Trib-14. Associate Technical Editor: J. A. Williams.
J. Tribol. Jan 2000, 122(1): 354-360 (7 pages)
Published Online: May 21, 1999
Article history
Received:
January 21, 1999
Revised:
May 21, 1999
Citation
Britton , R. D., Elcoate , C. D., Alanou , M. P., Evans , H. P., and Snidle , R. W. (May 21, 1999). "Effect of Surface Finish on Gear Tooth Friction ." ASME. J. Tribol. January 2000; 122(1): 354–360. https://doi.org/10.1115/1.555367
Download citation file:
Get Email Alerts
Related Articles
Optimizing the Smoothness and Temperatures of a Wet Clutch Engagement Through Control of the Normal Force and Drive Torque
J. Tribol (January,2000)
Mixed Elastohydrodynamic Lubrication With Three-Dimensional Machined Roughness in Spiral Bevel and Hypoid Gears
J. Tribol (October,2015)
Comparison of Interfacial Forces During Post-Chemical-Mechanical-Polishing Cleaning
J. Tribol (April,2008)
The Efficiency of Involute Spur Gears
J. Mech. Des (January,1981)
Related Proceedings Papers
Related Chapters
Materials
Design and Application of the Worm Gear
Understanding the Problem
Design and Application of the Worm Gear
Backlash
Design and Application of the Worm Gear