Abstract: The invention relates to a ring electrode for a slip ring for transmitting electrical energy between machine parts, of which at least one machine part can be rotated in relation to another machine part. The ring electrode and corresponding slip ring can be economically produced and have low wear. The electrode is made of a rod material made of stainless steel, which is rolled into a ring and the free ends of the ring are brought together to form a closed ring.

Abstract: The invention relates to a ring electrode for a slip ring for transmitting electrical energy between machine parts, of which at least one machine part can be rotated in relation to another machine part, a corresponding slip ring, and a method for producing a corresponding ring electrode. In order to create a ring electrode and a corresponding slip ring, and a method for producing said ring electrode, which ring electrode and corresponding slip ring can be economically produced and have low wear, the electrode according to the invention is made of a rod material made of stainless steel, which is rolled into a ring and the free ends of which are brought together to form a closed ring.

Abstract: A bush of a radial rotary union joint including a hollow-cylindrical main body whose inner cylindrical surface forms a sliding sealing surface divided by a peripherally extending inner groove into a first and a second sliding sealing surface and having a cylindrical outside surface which is divided by a peripherally extending outer groove into a first and a second outside surface. The wall portion separating the inner and the outer grooves has at least one bore connecting the two grooves. The first and the second outside surface can be sealed off by a stationary sealing ring in relation to a housing embracing the bush. The side surfaces of the inner groove are of the same size within a tolerance threshold of +20% and ?35% as the side surfaces of the outer groove.

Abstract: A bush of a radial rotary union joint including a hollow-cylindrical main body whose inner cylindrical surface forms a sliding sealing surface divided by a peripherally extending inner groove into a first and a second sliding sealing surface and having a cylindrical outside surface which is divided by a peripherally extending outer groove into a first and a second outside surface. The wall portion separating the inner and the outer grooves has at least one bore connecting the two grooves. The first and the second outside surface can be sealed off by a stationary sealing ring in relation to a housing embracing the bush. The side surfaces of the inner groove are of the same size within a tolerance threshold of +20% and ?35% as the side surfaces of the outer groove.

Abstract: The present invention relates to a radial rotary transmission leadthrough with a rotating shaft which has at least two substantially axially running channels (4, 4?) which have radial transition openings (5) open to the periphery of the shaft, and with at least one guide bush (2, 2a) tightly surrounding the shaft (1) in the area of the transition openings (5) which has at least one radial feed bore each (6) for every one of the channels (4, 4?) to be connected via the bush (2, 2a), wherein the different channels (4, 4?) have their radial transition openings (5) at different axial positions of the shaft (1).

Abstract: The present invention relates to a radial rotary transmission leadthrough with a rotating shaft which has at least two substantially axially running channels (4, 4?) which have radial transition openings (5) open to the periphery of the shaft, and with at least one guide bush (2, 2a) tightly surrounding the shaft (1) in the area of the transition openings (5) which has at least one radial feed bore each (6) for every one of the channels (4, 4?) to be connected via the bush (2, 2a), wherein the different channels (4, 4?) have their radial transition openings (5) at different axial positions of the shaft (1).