Proving Negligence in a Commercial Truck Wheel Off Accident Lawsuit
A "wheel-off" accident occurs when a dual wheel assembly completely detaches from a moving semi-truck or commercial trailer. When these massive 150-pound tires separate at highway speeds, they become unguided projectiles traveling with immense kinetic energy, frequently bouncing over median barriers and crushing oncoming passenger vehicles.
If your vehicle was struck by a runaway truck wheel, filing a commercial truck wheel off accident lawsuit can hold the fleet owner and the maintenance shop fully liable for catastrophic mechanical neglect.
Wheel-off accidents are almost exclusively caused by maintenance failures. They typically occur due to two specific mechanical errors: lug nuts that were not torqued to the correct specification (causing studs to shear under tension), or spindle bearing failure inside the hub due to lack of lubrication (causing the entire hub assembly to seize and break off).
Who is Liable for a Wheel-Off Crash?
Unlike other vehicle components that can fail without warning, a wheel-off is a direct indicator of improper mechanical service. Liability typically falls on two primary parties:
- The Maintenance Facility: If a third-party mechanic recently serviced the truck's wheels but failed to use a calibrated torque wrench, over-tightened the nuts (causing stud stretching), or reused damaged studs, they are directly liable for the separation.
- The Trucking Company: Motor carriers must ensure daily inspections are performed. Before wheel separation occurs, the wheel will exhibit signs of looseness, such as rust streaks running from the lug nuts (indicating friction play) or severe wheel vibrations. Surtax regulations state that operating a vehicle with loose fasteners is illegal.
Preserving the Spindle and Fasteners
To prove your case, the physical wreckage must be examined by a metallurgical expert. We will inspect the sheared studs under a microscope to determine if the failure was caused by fatigue (under-torquing) or tensile overload (over-torquing), providing the objective proof needed to secure your settlement.