Module
3
Teeth
18
Teeth1
45
i ratio
1:2.5
A centre distance
82.5
A1
54.9
B
15
Tolerance (B)
H7
B1
30
Tolerance (B1)
H7
b tooth width
25
d
54
d1
135
da external diameter
59.6
da1
137.2
H
39
H1
39
L
35
L1
35
N
40
N1
70
n
12.2
n1
20