The supporting roller is made of nylon as the main material. Nylon has excellent wear resistance, self-lubrication, corrosion resistance, and good impact resistance. This allows the pressure roller to resist wear during long-term use, reduce heat and noise caused by friction, and maintain stable performance; the support roller is equipped with a 6202 model deep groove ball bearing, which has a simple structure, is easy to manufacture, and has a high load-bearing capacity. Strong; the outer diameter and height of the support roller are both 70mm. This size design makes the belt pressure roller suitable for belt pressing, guiding, and other tasks with a variety of mechanical equipment.