👉 A rotary fluid, often used in hydraulic systems, is a specialized fluid designed to operate within rotating machinery such as pumps, gearboxes, and turbines. This fluid is engineered to maintain its viscosity and lubricating properties under high-speed rotation, ensuring smooth operation and minimizing wear on moving parts. Unlike traditional hydraulic fluids, rotary fluids are formulated to handle the unique stresses and temperatures encountered in rotating systems, providing efficient energy transfer and reducing friction. They are crucial in maintaining the performance and longevity of machinery by effectively managing heat and preventing fluid degradation due to constant motion.