Reliability Improvement in Auto-Locking Hub Assembly

The SituationWheel Hub Diaphragm
A manufacturer serving the automotive and light truck market needed a more robust solution to handle the assembly and operation loads with popular four-wheel and all-wheel hub locks. These locks need to handle the temperature, loads and misalignment found in a wheel end every time all-wheel or four-wheel drive is engaged.

The Solution
Together with the customer and another principal supplier, Trostel designed, prototyped, and tested a rubber diaphragm geometry that absorbed side loads when deflected, reliably bonded in the mold the plastic and steel inserts to molded rubber membrane and introduced a higher energy ultrasonic weld to complete the component.