Posted by shawn cooper on February 15, 2008 at 16:09:32:
In Reply to: Re: Helical Gears posted by BillS on February 04, 2008 at 03:09:58:
OK this is where I am and is still not cutting a good helical can anyone help is this the right ratio and gears for a barbar coleman 10-20
Driver 67
driven 22
driver 43
idler
driven 25
22 and 43 are on the same stud
Lead ratio DR/DN = N/TL
N= 55 (number of teeth)
T= 1 (# threads on hob)
L= 10.499583 (Lead of gear)
Hob is right hand single lead
gear left hand single lead
Climb cutting
ratio we came up with is 5.2383032