La función principal de las arandelas de seguridad.

Los sujetadores roscados se usan comúnmente para conectar y asegurar dos o más objetos.

Esta estructura de conexión es muy eficaz, pero debido a la vibración, los ciclos de temperatura,

 desgaste y otras razones, la conexión roscada se aflojará con el tiempo. Cerrar 

La almohadilla negra es un tipo de sujetador que se utiliza para evitar que las conexiones roscadas se aflojen.

There are several different types and sizes of lock washers, such as spring lock washers, elastic 

lock washers and double tooth face lock washers, which are widely used in machinery 

manufacturing, rail transit, aerospace and other fields. In many structural applications, loose 

connections may pose significant safety hazards.

Method of locking washer: When using the locking washer, the inner wing of the locking diagram should be installed into the groove of the shaft, and the outer wing should be bent and tightly attached to the outer edge of the nut. If the inner or outer wings are damaged or cracked, they are absolutely not allowed to be reused. The locking pad used for important parts is only allowed to be used once. Fitted with a nut on a bolt, the function is similar to a spring washer.