One of the biggest questions we receive on towbars and heads is “What does shear or shock protection mean?” Let us help explain.
Shear Protection
- 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.
Some towheads will incorporate one of the above shear formats, while others will incorporate tension/compression and/or radial shear protection.
Shock Absorber Protection
All multi-head towbars incorporate a spring type shock absorber that helps protect the nose gear from shock loads encountered during normal towbar operation.
Have another question? Just ask, and let us help!
