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ISO9001:2015 RoHS REACH
The flat pad is only to increase the contact area, and the spring pad can be loosened. For example, the bolt connecting the motor and the base is generally spring-loaded. Because the motor vibrates without the spring pad, the nut will loosen and the vibration with the vibration is generally attached. Spring washers are attached to the parts.
The main function of the flat washer is to protect the surface of the joint from scratching the surface of the workpiece when the bolt and nut are tightened; the spring washer is loose. However, some important connections, such as the place where the friction is mainly transmitted by the friction, can not use the spring pad, and it is easy to reduce the rigidity of the connection.
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