Abstract: A chain tensioning device for use in a motor vehicle with a cylinder-piston unit (10) that has a piston housing (11) and a tensioning piston (12) that is provided for tensioning a chain and is arranged at least partially in the piston housing (11). A chain tensioner housing (13) is provided for establishing a flow connection between the cylinder-piston unit (10) and an operating medium circuit and holds at least partially the cylinder-piston unit (10). A compression joint fixes the piston housing (11) and the chain tensioner housing (13) against each other at least in the axial direction. The compression joint is constructed as a press fit by which the piston housing (11) and the chain tensioner housing (13) are directly connected to each other with a friction fit.