CTD Torque limiting wing knobs

Technopolymer

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Material

Glass-fibre reinforced polyamide based (PA) technopolymer, black (C9) or orange (C2) colour, matte finish.

Torque limiting mechanism

Nickel-plated steel.

Standard executions

  • CTD-B-2:ᅠnickel-plated steel boss with threaded blind hole, maximum torque 2Nm.
  • CTD-B-3:ᅠnickel-plated steel boss with threaded blind hole, maximum torque 3Nm.
  • CTD-p-2:ᅠnickel-plated steel threaded screw, maximum torque 2Nm.
  • CTD-p-3:ᅠnickel-plated steel threaded screw, maximum torque 3Nm.

Features and applications

CTD wing knobs are used when the applied tightening torque 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.

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