Posted by tom on October 05, 2014 at 13:30:53:
In Reply to: Re: 1.95 ratio posted by Ron V on October 03, 2014 at 16:19:41:
module 3,175 is too small !!
You need to use module 3,25 a.p.20°
Working pressure angle 28°16'49'
Helix angle on pitch diameter 30°
z19 z37
Outside diam. 81,20 150,63
Distance centres correct 110
Base diameter 65,73 128,0
Number teeth on measurement
5 8
Chordal measurement
45,95 76,61
Dim. the ruller 86,57 156,41
Ruller diameter 7 7