Tooth Action and Tooth Bearing of a Pair of Nonintersecting-nonparallel Axis Conical Involute Gear

Abstract

Conical involute gears used for marine transmission are mostly helical conical involute gears. Besides these gears are not intersecting axis gears but also nonintersecting-nonparallel axis gears. In this case the contact between tooth surfaces of a pair of gears is point contact. Hence the tooth surface durability is generally small. This research aims at the establishment of the design and production system of the Concave conical gears for marine transmissions. First the gear tooth action of a pair of nonintersecting-noparallel axis gears is analyzed. Secondly, test gears are made and tooth bearing test are proves. Tooth bearing marks are in good agreement with the theoretical ones.