Miter gears are one kind of bevel gears where the two rotational 
axes intersect. When speaking of narrow description of bevel gears with ability to increase or decrease speed, miter gears do not have that ability due to the pair’s same amount of tooth. Their purpose is limited to the modification in transmission path. Because they are a type of bevel gears, the essential characteristic of bevel gears exist such as for example presence of gear kinds of straight cut, spiral slice and types.
Also, because the shafts could be set to any angle, now there are miter gears with non-90 degree (non-perpendicular) angle called angular miter gears. Ever-power is definitely capable of making angular miter gears with shaft angles in the range of 45 to 120 degrees.
Because a pair of right tooth miter gears has the same quantity of teeth, with the exception of minor differences such as place screw holes and key ways, the same two gears may mate with one another. However, regarding spiral miter gears, even though the number of teeth will be the same, the twisting directions will vary. Therefore, the same gear can’t be meshed together, and it is required to pair the proper and still left handed pairs.
Bevel gears are classified in various types according to miter gear geometry:
Straight bevel gears have conical pitch surface area and teeth are straight and tapering towards apex.