Module
3.5
Teeth
16
Teeth1
56
i ratio
1:3.5
A centre distance
125
A1
75
B
20
Tolerance (B)
H7
B1
25
Tolerance (B1)
H7
b tooth width
25
d
56
d1
196
da external diameter
65.6
da1
197.1
H
52
H1
55.1
L1
49
N
45.3
N1
80.3
n
25.5
n1
35