Helical Tooth Rack

Pt = Transverse/tooth
= 6.66668.....M2
= 10.00002.....M3
= 13.33335.....M4
= 16.66669.....M5
= 20.00003.....M6
= 26.66670.....M8
= 33.33339.....M10
= 40.00006.....M12
M = Module
Z = Number of teeth

Quality = 6h23
Material = C45K DIN 1.0503
Profile = all faces ground
Teeth = Hardened and ground/pressure angle a = 20°。Helical tooth system right/helix angle 19° 31'42"。
Cumulative pitch error GTf : 0.027 / 300 mm
Adjacent pitch error fp(mm) : Module ≦ 3 ; 0.006﹐ Module > 3 ; 0.008

Parameter Name	Parameter Value
Teeth	helical
Other characteristics	precision ground custom-made for industrial applications tempered with ground teeth steel
Length (mm)	480 - 500