Module
0.5
Teeth
20
B
4
Tolerance (B)
H9
b tooth width
3
c
3
d
10
da external diameter
11
L
10
N
7.9
The bores of these plastic gears are machined with a reamer H7. 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).