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This paper outlines the comparison of efficiencies for worm gearboxes with a center distance ranging from 28 - 150 mm that have single reduction from 5 to 100:1. Efficiencies are calculated using several standards (AGMA, ISO, DIN, BS) or by methods defined in other bibliographic references. It also deals with the measurement of torque and temperature on a test rig — required for the calibration of an analytical model to predict worm gearbox efficiency and temperature. And finally, there are examples of experimental activity (wear and friction measurements on a blockon- ring tribometer and the measurements of dynamic viscosity) regarding the effort of improving the efficiency for worm gear drivers by adding nanoparticles of fullerene shape to standard PEG lubricant
The complete Product News section from the May 2019 issue of Gear Technology.
The complete Industry News section from the August 2019 issue of Gear Technology.
News Items About Varvel
1 Varvel Introduces New Automation System (March 28, 2019)
The Varvel Group has introduced Dadistel, an automation system for control of production in mechanical machining departments that enables... Read News