Patent ID: 7076875

Claim:
A method for manufacturing compound helical planet gears having individual gear elements with different leads from a gear blank, comprising the steps of: establishing an axial bore in the gear blank; establishing a mounting shoulder on the gear blank at the periphery of the bore; machining a first helically toothed gear element having a first lead on the gear blank; establishing a reference tooth on the first helically toothed gear element; and, machining additional helically toothed gear elements from the blank using the mounting shoulder as a baseline reference to establish the axial spacing of the additional helically toothed gear elements in relation to the first helically toothed gear element, a tooth of each of the additional helically toothed gear elements having a timed relationship in a circumferential direction with the reference tooth of the first helically toothed gear element, the additional helically toothed gear elements having different leads than the first helically toothed gear element.