Method for assembling a camshaft

A method for assembling a camshaft comprising:

• providing a support shaft that includes fastening regions and positioning regions that alternate along an axis of the support shaft;
• providing a component with a passage opening for receiving the support shaft, wherein the passage opening comprises fastening sections that are axially spaced apart and positioning sections that are disposed between pairs of the fastening sections, wherein
• a diameter of the support shaft in the positioning regions is smaller than a diameter of the passage opening in the fastening sections,
• a diameter of the support shaft in the fastening regions is smaller than a diameter of the passage opening in the positioning sections,
• the diameter of the support shaft in the fastening regions is greater than the diameter of the support shaft in the positioning regions,
• the diameter of the passage opening in the fastening sections is smaller than the diameter of the passage opening in the positioning sections,
• axial extents of the fastening regions, the positioning regions, the fastening sections, and the positioning sections are such that there is a first axial position of the component relative to the support shaft in which all of the fastening sections of the component fall within the positioning regions of the support shaft and all of the positioning sections of the component overlap with the fastening regions of the support shaft in an axial direction,
• the axial extents of the fastening regions, the positioning regions, the fastening sections, and the positioning sections are such that there is a second axial position of the component relative to the support shaft in which the fastening sections at least partly overlap the fastening regions in the axial direction to fix the component on the support shaft;
• and
• at least one of cooling the support shaft or heating the component so that the support shaft and the fastening regions of the support shaft can be pushed through the passage opening.