GN 3663 Torque limiting knob

Aluminium and steel

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Technical specifications

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Main specifications

Knob body

Anodised aluminium black colour.

Centre closing cap

Acetal resin based (POM) technopolymer, light-grey colour.

Torque limiting mechanism

Black-oxide steel.

Standard executions

Black-oxide steel clamping element, screw, spring and thrust washer.

  • GN 3663 (d2): threaded hole.
  • GN 3663 (d4 - l): threaded screw.
GN 3663 (d<sub>4</sub> - l) - Threaded screw 
General information

Features and applications

GN 3663 wing knobs are used when the applied tightening torque (see C# ±10% in the table)must not exceed a preset value.

The torque transmission from the wing knob to the clamping element takes place by means of a spring system which prevents the overcoming of the established torque. Upon exceeding the established torque, a "click" sound will be heard to indicate that the maximum tightening has been reached. By turning the knob anticlockwise the mechanism unlocks.

Other executions

Special executions on request

  • Executions with clamping element with plain hole.
  • Executions with clamping element with different threadings and lengths.
  • Different values of torque limiting.
  • Torque limiting knobs for anticlockwise clamping.
Elesa
Models all rights reserved in accordance with the law. Always mention the source when reproducing our drawings and photos.
Ganter

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