Module
1
Teeth
15
Teeth1
30
i ratio
1:2
A centre distance
20.2
A1
15.7
B
5
Tolerance (B)
H7
B1
5
Tolerance (B1)
H7
b tooth width
5
d
15
d1
30
da external diameter
16.8
da1
30.9
H
10
H1
11
L
9
L1
9.5
N
12.5
N1
16
n
4.5
n1
5