Safety nuts are used to protect people and to prevent costly machine damage. It is a second, load-free nut which is permanently coupled with the actual support nut and a distance X. With increasing wear of the support nut, the distance X to the safety nut decreases accordingly. In the case of direct danger to people, e. g., on lifting platforms, certain regulations must be observed in accordance with EN 280, EN 1493, EN 1570, EN 1756 (formerly VBG 14), among others. This is when long safety nuts are used. Wear monitoring can be carried out by means of an electrical limit switch.
Material: 2.1090 (CuSn7Zn4Pb7; RG7)
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