Heavy Duty Safety Washer

Heavy Duty Safety Washer

The Heavy Duty Safety Washers refer to a specialty version of a disc spring or Belleville washer used to improve security of a bolted connection. They prevent a loosening of the connection by e.g. setting losses in that their own spring load can maintain the initial load of the connection. This makes them very suitable for mostly axially loaded short screws. They are not effective against coming loose due to changing cross loading.

Features of Heavy Duty Safety Washer

  • High axial load
  • Optimum compensation for setting in the joint
  • Reduction of the dynamic loading of the screw due to higher elasticity of the joint
  • Uniform concentric loading and high safety through a high degree of spring action
  • Suitable for captive fitting on a wide range of bolts (Combi-Bolts)

Heavy Duty Safety Washers have been specially designed for high-strength bolts .This represents the most powerful form of safety washer in the form of a disc spring.

Heavy Duty Safety Washers conform to DIN 6796 and are designed for high demands on the protection of bolt joints. As a highly progressive load increase occurs at the end of the spring deflection when the washer is flattened the load has been indicated as double the calculated value. Tests have shown that these values are comparable with the measured values.

Uma Spring
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