The tooth surfaces of generated spiral bevel gears are composed of a large number of flats, or facets, spaced so closely that substantially smooth surfaces result. In the simplest form of such gears, having constant-depth teeth, these facets on each member coincide in direction as the gears mesh together. For the more common case of teeth with tapering depth, there is a small angle between the flats of the mating members. This paper describes how spiral bevel pairs can be generated on standard machines with standard cutters in such a way that the flats on the mating members cross each other at a substantial angle, so that an averaging effect is produced and only a small fraction of the flat-height is reflected as error in the output motion. This results in reduced noise, permitting higher production rates, less lapping time, and less required accuracy in the cutter truing operation.
Lattice Contact In Generated Spiral Bevel Gears
M. L. Baxter, Jr.
Gleason Works, Rochester, N. Y.
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Baxter, M. L. (January 1, 1978). "Lattice Contact In Generated Spiral Bevel Gears." ASME. J. Mech. Des. January 1978; 100(1): 41–45. https://doi.org/10.1115/1.3453891
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