Module
2.5
Teeth
15
Teeth1
30
i ratio
1:2
A centre distance
53.3
A1
40.8
B
12
Tolerance (B)
H9
B1
16
Tolerance (B1)
H9
b tooth width
17.1
d
37.5
d1
75
da external diameter
42
da1
77.2
H
31.1
H1
29.6
L
29.5
L1
27.6
N
26.5
N1
35.8
n
12.7
n1
15.2
The bores of these plastic gears are machined with a reamer H9. Due to the material, it is possible that a size reduction to the bore diameter of 0.02 to 0.04 mm can occur (temperature, air humidity).