Bevel gears are gears designed to transmit motion between intersecting axes ... M = OD ÷ N Pressure angle is the angle of tooth drive action, or the angle between the line of force between meshing ...

The teeth on a hypoid gear are helical, and the pitch surface is best described as a hyperboloid. A hypoid gear can be considered a cross between a bevel gear and a worm drive. Hypoid gears have a ...