Correction for worn Machining

NEsota · Sep 10, 2011

The male, coned and spleened stub shaft, (prox 8" long) on the end opposite, the small gear that drives the ring gear, on my post hold digger gear box, has slop between it and the connecting female pto drive shaft coupler. Because of the slop, the spleen which was cone shaped has now lost its cone on the outside end and will not tighten. I am considering lightly coating the shaft or coupler with braze, for shimming, in the cone area, to prevent movement between them. The shaft has a 3/4" fine thread stub on the end of it, so a lot of squeeze is available. Suggestions and comments please.

Paul from MI · Sep 10, 2011

Getting an even enough coat of brazing material on the shaft is going to be hard. It will be impossible on the coupler. You may be able to build up the shaft with brazing material, file it to fit the coupler, but you're going to be intimately acquainted with several files before you are done. I would look into replacing the worn sections with a standard splined shaft and coupling if possible.

greygoat · Sep 12, 2011

Have it "Spray Welded" oversize..then turn down
to "Standard", or the size you want.
Any shaft can be saved by the "Spray Weld" method
and the wear spot then is usually harder then
the original, and resists more wear,lasts longer.
Two machine shops, and one welding shop in my
area do it.The piece to be spray welded is put in
a dedicated lathe.

Correction for worn Machining

NEsota

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Paul from MI

Well-known Member

greygoat

Well-known Member

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