A jaw coupling is a type of general purpose power transmission coupling that also can be used in motion control applications. It is designed to transmit torque while damping system vibrations and accommodating misalignment, which protects other components from damage.
Jaw (or Jaw-Type) couplings are a common type of shaft coupling in the industry. They are designed to transmit torque and rotation between two shafts, accept shaft misalignment, and help protect components from damage by damping shock and vibrations.
Jaw type couplings feature two aluminum alloy hubs with protruding lugs known as “jaws,” and a polyurethane elastomer insert known as a “spider” that fits between the hubs.