Thin walled bearing is a small and lightweight bearing with an ultra-thin cross-sectional structure, with an inner diameter to outer diameter ratio of ≤ 1.25. It adopts an equal cross-sectional design to maintain high precision and strong load-bearing capacity. Thin walled deep groove ball bearings have a simple structure and are mainly used to withstand radial loads. When the clearance is increased, they can withstand combined radial and axial loads