This standard specifies the general basis for the calculation of the accuracy of bevel gears.; The structure of the system of tolerances for bevel gears has been harmonized with that for cylindrical gears. The relations are the same, but displaced by one quality grade. This the system of tolerances proposed for bevel gears offers a good basis also for international discussions.#,,#
DIN 3965-1:1986 history
1986DIN 3965-1:1986 Tolerancing of bevel gears; basic concepts