Teeth
13
B
8
Tolerance (B)
H9
d
25.07
da external diameter
27.5
L
10
l
2.6
N
18
p pitch
6 mm
The bores of plastic wheels are machined with reamers H9. Material-dependent it may occur, that a diminuition in the diameter of the bore from 0.02 to 0.04 mm (temperature, humidity) is possible.