Miter gears are a single kind of bevel gears where the two rotational axes intersect. When speaking of narrow definition of bevel gears with ability to increase or lower speed, miter gears do not have that ability because of the pair’s same amount of tooth. Their purpose is bound to the change in transmission path. Because they are a type of bevel gears, the essential characteristic of bevel gears can be found such as for example presence of gear kinds of straight cut, spiral trim and types.

Also, because the shafts could be set to any kind of angle, right now there are miter gears with non-90 degree (non-perpendicular) angle called angular miter gears. Ever-power is usually capable of creating angular miter gears with shaft angles in the range of 45 to 120 degrees.

Because a couple of right tooth miter gears gets the same number of teeth, with the exception of small differences such as set screw holes and key ways, the same two gears may mate with each other. However, in the case of spiral miter gears, even when the amount of teeth will be the same, the twisting directions are different. Therefore, the same equipment can’t be meshed together, and it is required to pair the right and still left miter gear handed pairs.

Bevel gears are classified in different types according to geometry:

Direct bevel gears have conical pitch surface and teeth are direct and tapering towards apex.