Ball joint for a chassis of a vehicle, and method for producing such a ball joint

A ball joint for a chassis of a vehicle, the ball joint comprising:

• an inner joint portion with a joint ball;
• and
• a one-piece slide bearing made of plastic, the one-piece slide bearing having a ball-bearing section and a ring-like holding section, wherein an outside of the slide bearing has an annular contact surface formed coaxially relative to a central longitudinal axis of the slide bearing;
• a sensor element on the ring-like holding section of the one-piece slide bearing;
• a closure ring defining a central opening and encircling an outer face of the slide bearing, the closure ring engaging the annular contact surface and having a radially inwardly directed face that bears against a cylindrical surface of the outer face, wherein the ring-like holding section of the slide bearing extends outward through the central opening of the closure ring, and wherein the cylindrical outer surface extends coaxially with the central longitudinal axis and/or at a right angle from and/or to the annular contact surface;
• and
• a joint housing;
• wherein the joint ball of the inner joint portion is fitted so that it can swivel in the ball-bearing section of the slide bearing;
• and
• wherein the annular contact surface in an axial direction relative to the central longitudinal axis, co-operates with the closure ring in the joint housing to fix the slide bearing in the joint housing.