An SSO bearing is a type of hydrodynamic bearing used in fans, for example, in complete liquid cooling systems. Hydrodynamic bearings generally use a thin layer of fluid, in this case oil, to separate rotating parts. As the fan's shaft rotates, the movement creates pressure in the oil film, which levitates the shaft. This prevents direct contact between metal surfaces, reducing friction and wear. The term 'Self-stabilising Oil-pressure' refers to a special internal design with grooves that actively pump oil and create a stable cushion. This mechanism centers the shaft, dampens vibrations, and ensures its smooth and quiet operation, contributing to the fan's long lifespan and low noise level.
