What is the difference between a spring washer and a stop washer? -Hardware

Spring washers are widely used in load-bearing and non-load-bearing structures of general mechanical products. They are characterized by low cost, convenient installation, and suitable for parts with frequent assembly and disassembly. But the anti-loosening ability of spring washers is very low! Especially in the current European and American countries that require high reliability products, the adoption rate is extremely low, especially the important load-bearing structural connection parts have been abandoned for many years. Our country still has some applications in military industry, but it has been improved to stainless steel. It is said that steel spring washers have long been banned in CASC! It is also said to be very unsafe. There are two reasons: 1 is 'bulging ring' and 2 is hydrogen embrittlement. The spring washer is installed under the nut to prevent the nut from loosening. Spring washers are used to prevent loosening. Flat washers have no anti-loose function. Flat washers only increase the contact area. Flat washers only increase the contact area. Spring washers can prevent loosening. For example, the bolts connecting the motor and the frame generally need spring washers. Because the motor vibrates, if there is no spring washer, the nut will loosen. Generally, the fastener on the equipment with vibration is equipped with a spring washer. The main function of the flat washer is to protect the surface of the connecting piece from scratching the surface of the workpiece when the bolt and nut are tightened; the spring washer is anti-loosening. However, some important connections, such as the place where the power is transmitted by the friction force generated by the compression, cannot be used with spring pads. If the rigidity of the connection is reduced, accidents are likely to occur. About the stop washer The stop washer, as the name implies, is a washer that is used in conjunction with a nut to prevent the nut from loosening. Generally divided into stop washers for round nuts, outer tongue stop washers, double lug stop washers, single lug stop washers and so on. Stop washers for round nuts are mainly used for locking small round nuts; outer tongue stop washers, double lug stop washers, and single lug stop washers are all used for locking with general nuts. The above introduction by the author of  Hardware  hopes to be helpful to you. The 7 patented technologies have been continuously improved and have been unanimously recognized by manufacturers in the industry. If you need to know more, welcome to consult: Company website: