Michael's Tractors (Simplicity and Allis Chalmers Garden Tractors) Active Users: 8695 / Visits Today: 7929
Highest Active Users: 8695
Michael's Tractors (Simplicity and Allis Chalmers Garden Tractors)
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
 Password:
Save Password
Forgot your Password?

 All Forums
 Other Tractors, Attachments and other projects
 Other Projects (mechanical/electrical)
 Cut A Keyway		  New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

Roy

USA
1366 Posts
Posted - 05/20/2008 :  21:59:32  Show Profile  Visit Roy's Homepage Send Roy a Private Message  Reply with Quote
The PTO pulley on my 3212V had the keyway wallowed out so to salvage the pulley I cut a new keyway then drilled and tapped new set screw threads for it. I don't have a broach set so I used my lathe with a boring bar and manually moved the carriage to take 0.005" per cut to make the 3/16" x 0.09375" deep keyway.

Lathe setup:


Boring bar and bit:


Pulley with new keyway partially cut:


Bad keyway:


New keyway:


Complete with set screw:


My cutter bit was 0.005" too narrow so I had to hand file 0.0025" from each side to make the key would fit but overall the job came out good for a first time learning experience.
Roy

skunkhome

USA
12827 Posts
Posted - 05/20/2008 :  23:26:36  Show Profile Send skunkhome a Private Message  Reply with Quote
Good Save, Roy. Another skill I should have learned when I was a pup.

Phil



"They that can give up essential liberty to obtain a little temporary safety deserve neither safety nor liberty."

Benjamin Franklin
Go to Top of Page

olcowhand

USA
5115 Posts
Posted - 05/21/2008 :  09:31:33  Show Profile  Visit olcowhand's Homepage Send olcowhand a Private Message  Reply with Quote
Not thought of doing it that way. I use a milling bit the right width, bore down & make a half-round key slot, then finish the corners with a file. I'll try that way the next time & see which works easier.

Daniel in Ky -- So much to do, so little time!
Go to Top of Page

Roy

USA
1366 Posts
Posted - 05/21/2008 :  15:46:59  Show Profile  Visit Roy's Homepage Send Roy a Private Message  Reply with Quote
Daniel,

Easiest would be your method first and finish the corners with my method.
Roy
Go to Top of Page

jac

USA
151 Posts
Posted - 05/21/2008 :  16:15:08  Show Profile  Visit jac's Homepage Send jac a Private Message  Reply with Quote
Do any of you do work like that for fellow members?
Go to Top of Page

Roy

USA
1366 Posts
Posted - 05/21/2008 :  21:32:36  Show Profile  Visit Roy's Homepage Send Roy a Private Message  Reply with Quote
Jac,

"Do any of you do work like that for fellow members?"

I made four sets of Mackissic chipper/shredder hitches and clutch pulley assemblies for Ambler at Simple Tractors. Traded them to him for a chipper/shredder.

So, guess the answer is, yes, sometimes.
Roy
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
Michael's Tractors (Simplicity and Allis Chalmers Garden Tractors) © Michael's Tractors 2006-2019 Go To Top Of Page
This page was generated in 0.34 seconds. Snitz Forums 2000
RSS Feed 1
end of topic