Spring-loaded casters are designed to protect sensitive equipment from shock and vibration damage during transport by reducing the impact forces transmitted through standard rigid casters. Without suspension, carts carrying servers, precision instruments, or medical imaging equipment can experience repeated shocks from expansion joints, loading docks, or minor collisions, leading to hard drive failures, calibration drift, and alignment issues. Spring-loaded casters solve this by adding controlled compliance between the wheel and mounting plate, allowing the spring mechanism to compress on impact and absorb energy before it reaches the cargo. This process turns sudden force spikes into smoother motion, significantly lowering peak acceleration on critical components, though proper spring selection and load matching are essential for effective performance.