Posted by lbmakem on December 23, 2005 at 19:10:36:
In Reply to: Span dimension problem posted by Dimebag on November 12, 2005 at 16:33:43:
r=radius of pcd
t=tooth thickness
cos A =cosine of your pa
f= involute function of your pa[f=Tan pa-(paxPI/180)]
PI=3.141592654
s=number of teeth to span over [s=(teeth in jobxpa)/180]
MEAS:= rxcosAx((t/r)+((6.2832xs)/teeth)+f)