1. Product Overview The 623ZZ miniature ball bearing is designed for small model and micro precision equipment, offering low noise, dust resistance and stable ultra-high speed rotation. It is widely used in RC motors, fishing reels and miniature electronic devices where tiny installation space and long service life are required. 👉 Get a quote within 24 hours for your project 2. Technical Specifications Model 623ZZ Inner Diameter (ID) 3mm Outer Diameter (OD) 10mm Width 4mm