Come to Grainger when you need jaw coupling spiders to help complete jaw coupling units that can offer zero-backlash with high torque and excellent shock dampening capabilities. A jaw coupling does not require lubrication and can hold up against dirt, sand, grease, oil and moisture. Some jaw coupling models have a fail-safe, meaning that they will work even if the spider does not function. Find jaw coupling spiders at Grainger in polyurethane, bronze and synthetic rubber. Shop now!