When the rotating shaft moves, the blades integrated with the rotating shaft rotate simultaneously, and the silicone oil in the oil chamber is squeezed towards the gap between the blades and the body, and flows towards the back of the blades< Br/> The resistance force generated by the pressure borne by silicone oil multiplied by the blade area forms a damping torque on the rotating shaft and blades< Br/> The torque generated during shaft rotation is determined by the viscosity of the grease, the compressed area of the blades, and the size of the gap between the blades and the body< Br/> This type of damper is generally used within a rotation range of less than 360 °< Br/> Various types of cover plates are slowly lowered (washing machines, toilets, trash cans, etc.)< Br/>