Module
4
Teeth
20
Teeth1
40
i ratio
1:2
A centre distance
102.6
A1
70.2
B
20
Tolerance (B)
H7
B1
30
Tolerance (B1)
H7
b tooth width
30
d
80
d1
160
da external diameter
86.7
da1
163
H
50.6
H1
45.6
L
47
L1
40
N
50.3
N1
80.3
n
15.2
n1
20