Patent ID: 6892687

Claim:
A camshaft having a cylindrical shaft ( 1 ) and a hollow, cylindrical cam ( 2 ) pushed onto, and securely fixed to, the cylindrical shaft ( 1 ) in terms of rotation and displacement, the hollow, cylindrical cam ( 2 ) being provided with a foot strip ( 2 . 2 , 2 . 3 ) that borders the cylindrical shaft ( 1 ) on one side of the hollow, cylindrical cam ( 2 ) and is welded to the cylindrical shaft ( 1 ) along, and through, the foot strip ( 2 . 2 , 2 . 3 ), the foot strip ( 2 . 2 , 2 . 3 ) being formed laterally extending from a face ( 2 . 4 , 2 . 5 ) of the hollow, cylindrical cam ( 2 ) and being formed by a groove-shaped notching ( 2 . 6 , 2 . 7 ) present in the face ( 2 . 4 , 2 . 5 ) at a radial distance from the cylindrical shaft ( 1 ).