I believe the best option by far is make new shafts from 4140 or better grade steel. A lot less cost. time and effort than trying to rebuild those. Bushes are also an easy maching job, material will be costly. Washers can be made from gauge plate. You are doing a great job on that tractor. cheers WF
I believe the best option by far is make new shafts from 4140 or better grade steel. A lot less cost. time and effort than trying to rebuild those. Bushes are also an easy maching job, material will be costly. Washers can be made from gauge plate. You are doing a great job on that tractor. cheers WF
"i reject your reality and substitute my own" - adam savage. i suspect my final words maybe "well shit, that didnt work"
instead of perfection some times we just have to accept practicality
shim stock is readily available. bronze bar is too aint cheap though i would prehaps use sintered bronze as its somewhat self lubricating. ask a machinist for advice. and yes much easier to get new bright shaft and make new ones than try and rebuild them it could be done with mig bronze using silicon bronze filler wire. labour wise not worth the cost as you can get bar stock close to the correct size and machine it to suit. see if you can get bronze hollow bar close to the OD you need. of course if your getting a shop to make the well they'll handle that.
check the centre section of that shaft for out of round and uneven wear (is one end worn more than the other) if not out of round make the bushes to be a nice fit and leave it alone. remember this is in retirement. its not going to work every day. that shaft looks serviceable to me but without actually holding it you cant tell from photos.
the specs on the bushes could be found by google searching the pn and look for the national stock number listing as they were in use with the core of engineers and the seabees there will be a nsn.
You have a wonderful day. Best wishes. Deas Plant.
Hi, bpusmc.
You might like to try Chad Enyeart in Wyoming for some of your parts - 307 760 8483. He is one of the good guys.
Just my 0.02.
I second calling Chad. He has been fantastic to deal with on several projects. For bushings we found some at McMaster Carr that were close to correct. and machined them a little to get them to fit. That was easier than starting with bronze stock from scratch. That was several tractors ago but I believe we found the correct inside diameter and cut the outside down a little to get them to fit. Good luck on your project!
[attachment=68508]20210210_140055.jpg[/attachment] [attachment=68507]20210210_140109.jpg[/attachment] [attachment=68506]20210212_165822.jpg[/attachment]Found some pictures on my phone that might be helpful
Not sintered Bronze - may be a grade of aluminum that may also work?
Not sintered Bronze - may be a grade of aluminum that may also work?
"i reject your reality and substitute my own" - adam savage. i suspect my final words maybe "well shit, that didnt work"
instead of perfection some times we just have to accept practicality
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