Posted: Tue Feb 20, 2018 10:08 am Post subject: Re: Coulter bearings
one will be steel instead of cast. .CM
Depending on the type of steel you chose they will fail faster than the old ones, as they never were cast iron, they were made from chilled iron if you google search patents and search for Coulter’s you will get many hits, with in the patents they even discuss the reason for using chilled iron in the description
Because of competition a plow was an implement that needed to be built very conservatively in order to contain costs as such early Coulter’s contained no modern style type bearings and relied on metal composition to reach wear limits and in many cases due to existing patents the Coulter’s were purchased and not made by the actual plow manufacturer
Posted: Thu Feb 22, 2018 3:25 am Post subject: Re: Coulter bearings
Chuck, My Illinois fields have a few busted parts still buried---along with some tools. LOL
I have no problem with how you plan to fix the busted coulter hub. What do you do with the chips? My chips and "fab slag" first goes into a 30 gal garbage can and eventually gets hauled off. It is a toss up whether me or the garbage can will last the longest. We are both about shot.
My lathe can turn up to about 6 dia but it will not turn slow enough to avoid blue chips at that dia --even with new inserts. Its a 3hp Leblond that came out of the Morton High School vocational lab years ago. Not sure how I got along for many years without my lathe and the Bridgeport mill with an XYZ table powered in the X direction that will travel 24 inches in the X direction. I am still learning NOT to buy cheap China-made tooling. LOL
I fabricate a lot and do mostly "simple" machine operations. My thought was to fab the lost part and weld it and then machine the assemble. The bearing would remain a hard/soft wear face so it would not destroy itself. If the stationary part of your bearing is hard, you will have no problem with the bearing scarring itself.
Sometimes I cobble a job and sometimes I do it in a way that hides the repair---depending on the amount of time available and other factors. Just rambling and coping with cabin fever. Spring is coming!!!
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