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Wedge locking washer "Nord-Lock" Nord-Lock
Art.No. 58559

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Details

Application Areas:

Wedge locking washers secure screw connections against loosening according to DIN 25201, that are exposed to extreme dynamic loads due to oscillation and vibration

Advantages:

  • Reliable connections
    • Maximum safety when securing screw connections
    • Tested system for securing screws connections (anti-loosening), with high as well as low preload
    • Especially for dynamic load, also when using lubricants
  • Time and cost saving
    • Reusable several times without loss of quality
    • Easy assembly and disassembly since the locking washers are already glued in pair
  • Gentle on surfaces
    • Surface of the workpiece remains undamaged

Processing information

During assembly, care must be taken to ensure the correct position of the pairs of washers
For screws up to strength class 12.9
When used with screws with strength class 12.9 not reusable
For connections with screws and nuts, a pair of wedge locking washers must be inserted both under the screw head and under the nut
Cannot be used on unfixed washers

Advice

The discs have radial ribs on the outside which, due to their special embossing, create a form fit with the securing element used
On the inside, the locking washers have opposing wedge surfaces whose pitch is greater than the pitch of the screw or nut thread
Due to the form fit, movement is only possible between the washers. There, the wedge effect of the counter-rotating discs immediately produces an increase in preload due to the higher pitch
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