System consisting of a camshaft and a camshaft sleeve

A system, comprising:

• a camshaft including an end region, and
• a camshaft sleeve including a main body configured to receive the end region, the main body comprising a joining region, a bearing region, and a seat region, with the joining region being disposed axially closer to a distal end of the camshaft where the end region is located than the bearing region and the seat region,
• wherein the main body and the camshaft are configured such that, in a mounted state, the camshaft is joined in the joining region to the camshaft sleeve,
• wherein the system has, in the bearing region, a clearance between the camshaft and the camshaft sleeve, and the camshaft and the camshaft sleeve are connected to one another in the seat region via at least one positive lock or a frictional lock.