A joint device (6) having an axially extending joint pin (8) and a housing (11) that radially surrounds the pin, either wholly or partially. The joint pin (8) and the housing (11) can move relative to one another at least by pivoting or rotating, and a gap (13) between the two components is closed by a sealing device (14) which is effective in any position of the components (8; 11) relative to one another. The sealing device is designed in such manner that the sealing device (14), radially on the outside thereof, is in contact with and is supported by an inner wall area (15) of the housing (11).