Three Piece Crankshaft Die Set

[Jim Allen]

This die set will be used to disassemble & assemble three piece crankshafts. It will give an accuracy of total runout from end to end of + or - .0005"; providing the crankpin holes are square to one another. Final trueing of the crankshaft will be done in a four jaw chuck to a total runout of + or - .0001". I true the full diameter crankshafts to this tolerance because it is mounted between 4 bearings, two on each side. Alignment of the four bearings is checked with a precision ground hardened shaft shown in the first photo.

Jim Allen

 

[brad nichols]

Nice!!
Brad