Patent ID: 6293164
Filing Date: 2001-09-25
Classification: B21C,B21K,B62D,Y10T

Abstract:
A method for forming a helical pinion gear, said method comprising the steps of:providing a cylindrical first blank made of a deformable material, the first blank having an outer surface and oppositely disposed first and second ends;providing a cylindrical second blank made of a deformable material, the second blank having an outer surface and oppositely disposed first and second ends;forming a bore extending at least partially through the second blank, the bore being defined by an inner surface free of a spiral groove;forming helical teeth on the outer surface on the second blank; andfixedly interconnecting the second blank and the first blank against relative movement between the first and second blanks to form the helical pinion by inserting the first blank into the bore in the second blank.