Miter gears are gears where the axes of the two shafts intersect and the tooth-bearing faces of the gears themselves are conically shaped.
Miter gears are most often mounted on shafts that are 90 degrees apart and with a gear ratio of 1:1. Miter gears are divided into 2 types depending of the shape of the teeth. These two types are straight miter gears and spiral miter gears.
Miter and bevel gears are specifically designed for the efficient transmission of power and motion between intersecting shafts at a right angle (90°).
Miter gears are a special type of bevel gear designed to operate in pairs with identical numbers of teeth and diametral pitches, and a 1:1 ratio.