WMW-Niles ZSTZ 315C1 Spur & Helical Gear Grinder with crowning, gear diameter : 30 millimetre to 350 millimetre, number of teeth 5-140. Range of pitches 10 mod - 1 mod (2.5 dp - 25 dp.)Maximum face width 160 millimetre, maximum helix angle 45 degrees. Pressure angle range 14-26 degrees, stroke length 20 170 millimetre. Space 5500x3900x2300 millimetre height. Weight 4,800 kilogrammes . Change gears included. escriptions and dimensions are given in good faith however these are not guaranteed and prospective purchasers are advised to check any vital information themselves.