Module
2
Teeth
20
Teeth1
40
i ratio
1:2
A centre distance
50.8
A1
45
B
10
Tolerance (B)
H7
B1
20
Tolerance (B1)
H7
b tooth width
15
d
40
d1
80
da external diameter
43.3
da1
81.5
H
24.8
H1
32.8
L
23
L1
30
N
30
N1
50
n
8.3
n1
20