Because a pair of straight tooth miter gears has the same number of teeth, with the exception of minor differences such as set screw holes and key ways, the same two gears can mate with each other. However, in the case of spiral miter gears, even when the number of teeth are the same, the twisting directions are different. Therefore, the same gear cannot be meshed together, and it is necessary to pair the right and left handed pairs.
Also, to produce straight tooth miter gears. KHK utilizes Coniflex made by Gleason Company that allows the use of crowning method as in making bevel gears which creates final products superior in quietness.
Incidentally, originally the hat worn by Catholic bishop is called mitre and in woodworking the word miter joint is used.
For more information or enquiries, please do not hesitate to contact your local ELESA+GANTER distributor or visit https://khkgears.net