1923-01-01

GEAR GRINDING 1 230018

The author discusses only gear-grinding work on gear teeth subsequent to heat-treatment and pays particular attention to automobile transmission gears. He states that as yet very little is being done in the grinding of gear teeth that have not been heat-treated.
The salvaging of gears that have been rejected and the finish-grinding of gears that have grinding stock remaining upon the teeth are commented upon, together with remarks on the cost of grinding, the history of gear grinding, the different classes of work performed, gear-grinding machines in general, tooth-form and gear wear. It is stated that gear grinding is commercially a production operation having as its aim the placing of the correct tooth-shape and proper surface-finish on gear teeth so that the gears can move accurately, noiselessly and without wear; and that the cost of finished acceptable transmissions is less than when the process of finish-grinding is used.

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