The rotational resistance of the idler roller

  The rotational resistance of the idler roller mainly consists of two parts: the friction resistance of the bearing assembly and the friction resistance of the labyrinth seal.

  The rotational resistance of the idler rollers is a reaction force generated by the relative motion of the bearings and seals between the idler roller shafts, which are fixed on the frame, under the influence of the friction force of the conveyor belt. The friction resistance of the bearing set arises from the friction between the rolling and sliding surfaces inside the bearing, while the friction resistance of the labyrinth seal comes from the contact between the seal structure and the raceway. These resistances will directly affect the power consumption of the conveyor, and their impact is particularly significant in long-distance, high-volume applications.

  Researchers conducted a detailed analysis of the mechanism of roller rotation resistance, breaking it down into quantifiable parameters in order to establish a mathematical model that relates roller rotation resistance to load and speed. The experimental results show that the developed rotational resistance numerical expression performs well in practical applications and can effectively predict and control the performance of the rollers under different loads and speeds.