Compared with non-standard gears, what are the characteristics of standard gears?

Compared with non-standard gears, the standard gears m, a, h*a, c* are the standard values, and s=e=p/2 products have the following characteristics for reference.

1. The meshing angle of two standard gears during meshing transmission is equal to the pressure angle of the graduation circle.

2. The tooth thickness on the index circle is equal to the tooth spacing, which is equal to half of the circumferential section.

3. The pitch circle coincides with the index circle during gear meshing transmission, and the pitch circle radius is equal to the index circle radius.

4. When two standard gears are used for transmission, the center distance A0 is equal to the sum of the radii of the indexing circles of the two gears.

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