NOISE CONTROL IN BEVEL GEARS.

Vibrations created by the meshing action of bevel gears operating in a drive system often result in gear noise. Although this noise is a system problem, it can be reduced at the source by careful design and manufacturing techniques. Most of the methods for bevel gear noise reduction described in this paper have been developed for and used by the automotive passenger car industry. The methods developed for that industry are equally applicable to other types of vehicles. These techniques and controls must be applied in the earthmoving industry to achieve gear noise reduction at its source.