Patent ID: 6314643
Filing Date: 2001-11-13
Classification: B23P,F16C,Y10T

Abstract:
A method for making a multi-piece crankshaft from a shaft and a crankpin having two ends comprising the steps of:positioning the crankpin on an intermediate section of the shaft so that an axis of the crankpin is parallel to and spaced from an axis of the shaft;securing both ends of the crankpin to the shaft;removing a portion of said intermediate section of the shaft thereby forming two disconnected and axially aligned shaft segments from the shaft,forming at least one hole diametrically through each end of the crankpin and radially into a portion of the shaft,securing a fastener in each said hole so that the fastener extends diametrically through the crankpin and radially into the portion of the shaft, andthereafter securing a counterweight around each end of the crankpin so that said counterweights extend around both the crankpin and the shaft segments.