Tooth proportions for fine-pitch gearing are similar to those ofcoarse pitch gearing except in the matter of clearance. Thisstandard is applicable to external spur and helical gears withdiametral pitch of 1.25 through 0.2 and a profile angle of 20degrees. It provides a system of enlarged pinions which use theinvolute form above 5 degrees of roll. Data on 14-1/2 and 25 degreeprofile angle systems, and a discussion of enlargement and tooththicknesses are provided in annexes. In addition, it addresses, ina new annex, an analysis of comparative systems of selecting tooththicknesses of pinions.
- Edition:
- H07
- Published:
- 01/01/2007
- ANSI:
- ANSI Approved
- Number of Pages:
- 32
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