Miter gears are 1 kind of bevel gears where the two rotational axes intersect. When speaking of narrow definition of bevel gears with capability to increase or decrease speed, miter gears don’t have that ability because of the pair’s same number of tooth. Their purpose is limited to the transformation in transmission direction. Because they are a kind of bevel gears, the basic characteristic of bevel gears exist such as presence of gear types of straight cut, spiral slice and types.
Also, since the shafts can be set to any kind of angle, now there are miter gears with non-90 degree (non-perpendicular) angle called angular miter gears. Ever-power is certainly capable of producing 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 quantity of teeth, with the exception of small differences such as place 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 number of teeth will be the same, the twisting directions will vary. Therefore, the same gear cannot be meshed together, and it is miter gear china required to pair the right and left handed pairs.
Bevel gears are classified in various types according to geometry:
Straight bevel gears have conical pitch surface area and teeth are right and tapering towards apex.