Miniature bearings are widely used in medical devices such as surgical tools, dental handpieces, and imaging equipment (e.g., MRI and CT scanners). Their high precision ensures smooth, vibration-free operation, which is crucial for delicate procedures. In dental drills, they enable high-speed rotation (up to 400,000 RPM) with minimal friction, improving accuracy and patient comfort. Additionally, some medical-grade bearings are made from stainless steel or ceramics to resist corrosion and sterilization processes.