Module
4
Teeth
15
Teeth1
30
i ratio
1:2
A centre distance
87
A1
76
B
20
Tolerance (B)
H7
B1
25
Tolerance (B1)
H7
b tooth width
22.5
d
60
d1
120
da external diameter
69.6
da1
122.3
H
48.6
H1
57.3
L1
52
N
50.3
N1
80.3
n
24.6
n1
35