Gear rack with straight teeth

Tandheugel

Module = m = Image110
Number of teeth of the pinion = z = Image111
Numer of teeth of the rack = zcImage112
Pitch in mm = p = m.pImage113
Normal base pitch in mm = pb = p.cosa
Addendum in mm = ha = m
Dedendum in mm = hf = 1,16m (a=14°30’)
= hf = 1,25m (a=20°)
Tooth depth in mm = h = ha + hf = 2,16m of 2,25m
Facewidth in mm = b = 10.m
Rim thickness below the tooth in mm = H = h(normal)
Length of the rack in mm = Lc = m.zc.p = p.zc
Distance axis pinion to gasket of the rack in mm = a = Image114
Distance axis pinion to back face of the rack in mm = A = Image115 + hf + H = m.(1,16 + Image116) + H
= A = Image115 + hf + H = m.(1,25 + Image116) + H