The locking washer for round nuts, also known as the locking washer, is a type of washer that prevents the round nut from loosening. As shown in the figure, ① the inner stopper and ② the outer stopper are used together with washers and round nuts. When using, the washers are installed on the side of the nut groove, and after tightening, the inner and outer stopper are bent and placed in the groove. After tightening the round nut, pull the inner and outer ears axially and clamp them in the keyway on the shaft and the opening of the round nut, so that the round nut will not loosen due to the rotation of the shaft

GB858 Q408 DIN5406 Stop washer for round nut, stop washer

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