Module
3.5
Teeth
15
Teeth1
45
i ratio
1:3
A centre distance
105
A1
72
B
20
Tolerance (B)
H7
B1
25
Tolerance (B1)
H7
b tooth width
23.5
d
52.5
d1
157.5
da external diameter
61.9
da1
158.8
H
49.6
H1
54.4
L1
49
N
45.3
N1
80.3
n
25
n1
35