Effect of Tooth Contact and Gear Dimensions on Transmission Errors of Loaded Hypoid Gears

[+] Author and Article Information
M. Sugimoto, N. Maruyama, A. Nakayama, N. Hitomi

Central Engineering Laboratories, Nissan Motor Co., Ltd., 1, Natsushima-cho, Yokosuka, Japan

J. Mech. Des 113(2), 182-187 (Jun 01, 1991) (6 pages) doi:10.1115/1.2912767 History: Received April 01, 1990; Online June 02, 2008


The effect of the tooth contact and alignment error of the hypoid gear assembly on transmission error was investigated with a new measuring apparatus which can measure the transmission errors of loaded hypoid gears assembled into a final drive unit. Measurements indicate that transmission error predictions made with the TCA and LTCA — analytical tools developed by Gleason Works for a no-load and loaded state, respectively — have sufficient accuracy when actual data on the gear tooth surface and alignment error of the gear assembly are used in the calculations. A systematic examination has also been made of the effects of tooth contact and gear assembly alignment error on transmission error on the basis of the LTCA calculations. It was found that the transmission errors relative to the applied load varied not only according to the tooth contact but also the no-load transmission error of the gears. This relationship was also examined by taking into account the effects of the gear dimensions. It was confirmed through calculation and experiment that a small module design was effective in reducing transmission error.

Copyright © 1991 by The American Society of Mechanical Engineers
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