Energy chain having plain bearing rings

An energy guide chain to guide at least one line, the energy guide chain comprising:

• a number of chain links connected together in articulated manner which comprise mutually parallel side parts connected in a longitudinal direction to form two strings connected together by crosspieces;
• two side parts adjacent in the longitudinal direction each being connected by an articulated joint and being swivelable relative to one another about a common swivel axis, and the energy guide chain displaceable such that the energy guide chain forms a first run, a second run and a deflection region connecting the two runs;
• the articulated joints each comprising a joint journal on a first side part of the adjacent side parts and a joint receptacle on a second side part of the adjacent side parts,
• wherein at least some of the articulated joints in each case comprise a separate journal body which is mounted on the first side part to form the joint journal, and at least one plain bearing ring which is mounted in the joint receptacle on the second side part, the separate journal body having a fastening region for form-locked and/or force-locked fastening, and the separate journal body having a circumferential bearing surface introducible into the plain bearing ring coaxially to the swivel axis, and
• wherein the journal body comprises at least one retaining projection protruding radially relative to the bearing surface at an axially outer end and protruding radially beyond an external diameter of the plain bearing ring and/or the joint receptacle and engaging over the second side part, using which retaining projection at least the plain bearing ring is introducible axially into the joint receptacle of the second side part and/or securable axially therein, the retaining projection also securing the first side part to the second side part in a lateral direction.

An energy guide chain portion comprising:

• at least two chain links comprising mutually parallel side parts connected in a longitudinal direction to form two strings connected together by crosspieces;
• two side parts adjacent in the longitudinal direction each being connected by an articulated joint and being swivelable relative to one another about a common swivel axis, the articulated joints each comprising a joint journal on a first side part of the adjacent side parts and a joint receptacle on a second side part of the adjacent side parts,
• wherein at least some of the articulated joints in each case comprise a separate journal body which is mounted on the first side part to form the joint journal, and at least one plain bearing ring which is mounted in the joint receptacle on the second side part, the separate journal body having a fastening region for form-locked and/or force-locked fastening, to the first side part or to a further, separate journal body which is mounted on or in the first side part, and the separate journal body having a circumferential bearing surface introducible into the plain bearing ring coaxially to the swivel axis, and
• wherein the journal body comprises at least one retaining projection protruding radially relative to the bearing surface at an axially outer end and protruding radially beyond an external diameter of the plain bearing ring and/or the joint receptacle and engaging over the second side part, the retaining projection also securing the first side part to the second side part in a lateral direction and using which retaining projection at least the plain bearing ring is introducible axially into the joint receptacle of the second side part and/or securable axially therein.