The tractor is a 1942 Case. I've been using B92.1-1970 to do my calcs. I can't find much on earlier standards and it doesn't fit the Old American Standard. Maybe I'm using too modern of specs.
I was hoping to draw this up and send it out to a sprocket machine shop with capabilities to form...
This is an internal involute spline, so I just just need to differentiate between a 30, 37.5, or 45 degree pressure angle.
The sprocket is a No 100 roller chain, that's an easy one.
There's a program from Frenco that draws involute splines. The demo version only lets you use prime numbers...
I have an old sprocket off a 40's tractor and want to go to a smaller sprocket to increase the tractor's top speed. I need to match the internal spline of the old sprocket, but I can't accurately get the pressure angle.
It is a flat root, 12 tooth, 5/10 pitch, internal spline. The major and...
