NOVELTY - The transport roller (1) comprises a roller body and a spacer element (2) enclosing the roller body arranged on the roller body, where the spacer element is made of a fabric tube that contains metallic and/or ceramic fibers. The spacer element is: formed in ring-shaped manner; partially arranged in a circumferential groove (11) of the roller body; and comprises rolled portion (21) of a knitted fabric tube whose outer diameter is greater than the outer diameter of the roller body. The knitted fabric tube is rolled up from both ends.    USE - The transport roller is useful for vacuum treatment of substrates, and a performance of coating- and/or etching-process on flat substrate such as architecture glass and solar cell.    ADVANTAGE - The transport roller ensures effective and economical vacuum treatment of substrates with long lifespan and improved productivity.    DETAILED DESCRIPTION - The transport roller (1) comprises a roller body and a spacer element (2) enclosing the roller body arranged on the roller body, where the spacer element is made of a fabric tube that contains metallic and/or ceramic fibers. The spacer element is: formed in ring-shaped manner; partially arranged in a circumferential groove (11) of the roller body; and comprises rolled portion (21) of a knitted fabric tube whose outer diameter is greater than the outer diameter of the roller body. The knitted fabric tube is rolled up from both ends. A middle, unrolled area of the knitted fabric tube is arranged in a groove base, and forms the outer diameter of the spacer element. Each unrolled portion of the knitted fabric tube is arranged in the respective groove of the roller body, and the unrolled portion of the knitted fabric tube arranged between the two unrolled portions of the knitted fabric tube rests on the outside of the roller body.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a spacer element.    Transport roller (1)    Spacer element (2)    Groove (11)    Rolled portion. (21)