1969-02-01

Roller Traction Drive for Quiet, High Speed Power Transmission 690572

This paper discusses the principle of operation and dynamometer test results of a fixed ratio, planetary speed reducer which uses preloaded, lubricated rollers for transmittal of power. The unit features a torque actuated, automatic preloading mechanism which prevents roller slippage even under severe overload and greatly improves reliability, life, and efficiency of the drive.
Test results indicate efficient, quiet, and vibration free operation at pitch line velocities up to 30,000 fpm, such as might be encountered in turbomachinery. Examples of roller traction drives ranging from 500 to 3 hp tested in several applications are also briefly discussed.

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