What is the modulus of gear most commonly used?
Modular standard series (optional) 1.75, 2.25, 2.75, 3.5, 4.5, 5.5, 7, 9,, 14, 18, 22,, 28, 36, 45Modulus standard series (as much as possible) 3.25, 3.75, 6.5, 11, 30
Modular standard series (preferred) 1, 1.25, 1.5, 2.5, 3, 4, 5, 6, 8, 10, 12,, 14,, 16, 50, 20, 2, 25, 40, and 32
The modulus of gear is in the national standard (GB1357-78)
