Synthetic Rubber/PU Spider for Coupling

A Rubber Spider Coupling is a flexible elastomer insert placed between two metal hubs’ jaws, circularly interlocked with each hub. The spider (usually rubber or polyurethane) connects two rotating shafts to transmit torque while damping shocks, vibration and slight misalignment between the connected shafts. When a motor drives a pump, gearbox, or other driven component, torque is transmitted from one shaft to another through coupling hubs clamped around the spider element. The elastomer spider flexes to absorb shock loads and minor misalignments, thus reducing torsional vibration and protecting connected equipment. Rubber spider couplings reduce wear on motors, gearboxes and driven machines by absorbing shocks from startup, fluctuating loads, and transient torque peaks. They also make shaft alignment less critical, which simplifies installation and maintenance.