Pulley idler is used with flat belt and round belt in mechanical equipment to play the role of power transmission, output, transition, belt tensioning, etc. when used for belt tensioning, it can also be called tensioning pulley.

Belt tensioning application: when the center distance of the belt can not be adjusted, the belt can be tensioned by the condition wheel. It is a follower wheel pressed on the belt in order to change the wrap angle of the belt pulley or control the tension of the belt. It is a tensioning device of the belt drive

Precautions: the tension of the tensioning wheel shall not be too small, which will reduce the friction between the belt and the working wheel and eventually cause the belt to slip. Similarly, the tension of the tensioning wheel shall not be too large, and excessive tension will increase the belt load

Type selection: generally, the tensioning wheel shall be placed on the inner side of the loose edge, so that the belt is only subject to one-way bending. At the same time, it shall be as close to the large wheel as possible to avoid excessively affecting the wrap angle of the small pulley; If the tensioner is placed outside the loose edge, it should be as close to the small pulley as possible; The pulley groove size of the tensioning pulley is the same as that of the pulley, and the diameter is smaller than that of the small pulley.

The difference between pulley and situation wheel: the pulley and driving shaft move synchronously to output power, and are fastened with the driving shaft through keyways and screws; The idler gear and the shaft are connected through bearings and used for the driven shaft

The above is the introduction to the selection of pulley idler. If you need pulley idler, you are welcome to consult the IHF Hefa gear manufacturer.