10-Pack 623ZZ Bearings 3x10x4mm Miniature - Shielded

623ZZ Shielded Ball Bearings - 10-Pack✔️ 3mm ID × 10mm OD × 4mm Wide - Chrome Steel - Double Shielded This 10-pack of 623ZZ deep groove ball bearings is built for high-speed, low-friction performance in compact applications. Each bearing features double metal shields to block dust and debris, and is pre-lubricated for long-lasting use in 3D printers, RC motors, small tools, and more. ✅ Inner diameter (ID): 3mm✅ Outer diameter (OD): 10mm✅ Width: 4mm✅ Type: Deep groove ball bearing✅ Closures: Double metal shields (ZZ)✅ Material: Chrome steel✅ Dynamic load rating (Cr): 640 N✅ Static load rating (Cor): 230 N✅ Max grease-lubricated speed: 52,000 RPM✅ Quantity: 10 bearings✅ Also known as: 623-2Z, 623-ZZ, R-1030ZZ Dimensions Table (mm): ID OD Width Cr (N) Cor (N) Max RPM 3mm 10mm 4mm 640 230 52,000 💡 What are 623ZZ bearings used for in compact devices?These small bearings are perfect for high-speed, low-load applications where space is tight - like drones, hobby motors, 3D printer c