Module
2
Teeth
18
Teeth1
45
i ratio
1:2.5
A centre distance
57.2
A1
45
B
10
Tolerance (B)
H7
B1
25
Tolerance (B1)
H7
b tooth width
15
d
36
d1
90
da external diameter
39.6
da1
92.3
H
26.6
H1
33.8
L
25
L1
30
N
30
N1
60
n
11
n1
20