What is Shear Protection on Towbar Heads?

  • Tension/Compression Shear protects from excessive “pull” or “push” loads to nose gear.
  • Radial Shear protects nose gear from excessive loads while turning. Attachment heads are made to break a shear pin if a safe turning load is exceeded; but head stays secured to towbar.
  • Dual Shear attachment heads are made to break a shear pin if maximum turning load or straight overload limits are exceeded; but head stays secured to towbar.

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