High-Performance 688zz Mini Ceramic Bearings for Precision Machinery
Ultra-durable silicon nitride ceramic balls ensure exceptional corrosion resistance, low friction, and extended lifespan under extreme temperatures (up to 800°C). Ideal for high-speed machine motors, dental tools, and aerospace applications. Precision-engineered deep groove design with 8mm x 16mm x 5mm dimensions delivers smooth rotation and reduced vibration. Open-type structure allows easy maintenance and lubrication. Perfect replacement for industrial equipment, robotics, and high-end RC models. Bulk pricing available for wholesale buyers—global stock, fast shipping.