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 decrease speed, miter gears do not have that ability because of the pair’s same amount of tooth. Their purpose is bound to the transformation in transmission path. Because they are a type of bevel gears, the basic characteristic of bevel gears exist such as presence of gear types of straight cut, spiral trim and types.
Also, because the shafts could be set to any kind of angle, now there are miter gears with non-90 degree (non-perpendicular) angle called angular miter gears. miter gear Ever-power is certainly capable of generating angular miter gears with shaft angles in the number of 45 to 120 degrees.
Because a pair of right tooth miter gears gets the same quantity of teeth, with the exception of small differences such as collection screw holes and key ways, the same two gears can mate with one another. However, in the case of spiral miter gears, even though the amount of teeth will be the same, the 
twisting directions will vary. Therefore, the same equipment can’t be meshed together, in fact it is necessary to pair the right and still left handed pairs.
Bevel gears are classified in various types according to geometry:
Right bevel gears have conical pitch surface and teeth are straight and tapering towards apex.