Posted by tom on November 06, 2011 at 06:38:14:
In Reply to: 2 to 1 ratio posted by mark fenn on November 05, 2011 at 07:16:11:
modul 3.175 =dp 8
24°.35' degree ( not 30)
outside diameter 80,9 for z21 mm, z42 151,80 mm
n°4 z measuremnt for z21 is 34,35
n°7 z measuremnt for z42 is 62.87
no responsibility 'if the data are not correct!!!
for 30° centre distance is 115.5
my calculations are correct? waiting for answers
regard tom