| 摘要 |
The invention refers to a supporting roller with a first roller part (3) made of a rigid material and a second roller part (2) made of a material with a high friction such as a rubber material, wherein the first roller part is engaged to the second roller part. Furthermore, the invention refers to a supporting roller with at least a first and a second part that can be engaged with each other such that the first and second part form a bore through which a shaft or rod can be passed such that the at least first and second part completely surround the cross section of the rod or shaft when the at least first and second part are engaged, and when the at least first and second part are not engaged with each other each part can be moved away from the shaft in a radial direction of the shaft without having to pass the ends of the shaft.
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