Driving rollers have to be cylindrical and carefully aligned and of a suitable diameter. At chain driving it sometimes may be necessary to use a supportdrum between wheels on the same shaft. Supportrollers, guide rails and side steerings must be free from sharp edges.
The belt run direction is important. Principally all hooks may have their open ends directed backwards. This is also valid at chain driven belts. The free ends of the selvage hooks are to be placed downwards. Joining of belt must be carefully carried out to maintane the structure and edge straightness of the belt. Running-in must always be done without load and tight tension during as long time as necessary to release a straight and stabilized action.