Non-powered roller conveyor systems are common transmission components in conveyor systems, primarily used for horizontal or inclined transport of goods. Their core function is to move goods across the roller surface using gravity, human power, or external power, making them suitable for logistics, warehousing, and production lines. Compared to powered rollers, non-powered rollers have a simpler structure, lower maintenance costs, and can be flexibly adjusted in layout to meet specific needs.
Structural Composition and Design Principles: A non-powered roller conveyor system mainly consists of three parts: the roller body, the shaft, and the bearings. The roller body is typically made of steel or plastic pipe, with a rubber layer added to increase friction. The shaft is made of metal, with diameters typically ranging from 1mm to tens of millimeters. Bearings are divided into rolling bearings and sliding bearings; the former is more suitable for high-speed or heavy-load applications. Its working principle relies on the friction between the goods and the roller surface: when goods are placed on inclined or horizontally arranged rollers, gravity or external force propels the goods, and the rollers rotate around the shaft via the bearings, achieving low-resistance transmission.
Technical Parameters and Customization: Key parameters of a non-powered roller conveyor system include the roller diameter, shaft diameter, and length. For example, common drum diameters range from 2.5mm to 200mm, while shaft diameters are selected based on load requirements; for instance, a 1mm shaft is suitable for light-load applications. Furthermore, the material and surface treatment of the rollers (such as galvanizing or powder coating) affect their corrosion resistance and service life. Customization is a major advantage of unpowered rollers; users can adjust the roller spacing, diameter, and material according to the conveyor's width, slope, and cargo type.
