Bill Simmons
Cast Iron
- Joined
- Mar 5, 2006
- Location
- Auburn CA
I am rebuilding a trans-axle for a 580k Case backhoe. Amount many issues the spider gears and their cross shaft pins are highly worn, about .040 combined wear. I bought aftermarket gears. Due to crazy prices on OEM pins and really poor quality in the aftermarket pins (I know, I bought some), I am considering making the new pins my self. They are about 2.5 inches long by 0.875 in diameter. The features required are some flats and one cross hole of about 0.2 in diameter.
I do not have a way to measure hardness of the original pins but they will not cut with HSS but will cut with Carbide tooling. I am just an amateur machinist and do not have much knowledge of metallurgy. I do not think that the pins would be highly stressed as about 5/8 of an inch is supported in bore on each end leaving about 1.25 inches between supports on a .875 inch pin. I believe I want a material with the max hardness I can machine to minimize wear. Please make some recommendations for a suitable material.
My primary tools are a Takisawa TSL 800 and a manual Gorton 2-32 mill.
I do not have a way to measure hardness of the original pins but they will not cut with HSS but will cut with Carbide tooling. I am just an amateur machinist and do not have much knowledge of metallurgy. I do not think that the pins would be highly stressed as about 5/8 of an inch is supported in bore on each end leaving about 1.25 inches between supports on a .875 inch pin. I believe I want a material with the max hardness I can machine to minimize wear. Please make some recommendations for a suitable material.
My primary tools are a Takisawa TSL 800 and a manual Gorton 2-32 mill.