Next Day Gears makes Bevel Gears and Miter Gears. Bevel Gears are Right Angle Gears usually running at 90 degrees. However, they could be designed with different angles. Miter Gears are Bevel gears with a 1:1 Ratio. Next Day Gears can make Bevel Gears in any material. Steel, Stainless steel, Delrin, Bronze, Aluminum etc. We use the Gleason System to cut our Bevel and Miter Gears.
The pitch angle of a gear is the angle between the face of the pitch surface, and the axis.
Most common bevel gears have pitch angles of less than 90 degrees, and are cone-shaped. This type of bevel gear is an external because the gear teeth point out. The pitch surfaces of meshed external bevel gears are coaxial with the gear shafts; the apex of the two surfaces are at the point of intersection of the shaft axes.
Bevel gears that have pitch angles of greater than ninety degrees have teeth that point in and are internal bevel gears.
Bevel gears that have pitch angles of exactly the measurements of 90 degrees have teeth that point out parallel with the axis and resemble the points on a crown. That’s why this type of bevel gear is a crown gear.