10 Pack Flanged Shielded Ball Bearings F684ZZ 4x9x4mm Stainless Steel Miniature Bearing With Flange For Low Friction Precision Motion In RC Models Robotics Drones And Hobby Projects

These are compact flanged shielded ball bearings sized 4x9x4 mm, sold in a 10-pack, ideal for RC cars, micro drones, and small precision setups where a flange helps mounting accuracy.

✅ Inner diameter 4 mm, outer diameter 9 mm, width 4 mm
✅ Flange style with ZZ shielded dust protection
✅ Stainless steel construction for durability and corrosion resistance
✅ Dynamic load rating Cr: 640 N; Static load rating Co: 230 N
✅ Maximum speed up to 59,000 RPM with grease lubrication
✅ Pack of 10 bearings fits common RC models and mini machines

💡 What is a flanged shielded ball bearing used for in compact precision assemblies such as RC cars and small machinery?

These bearings provide reliable radial support and dust protection in tight layouts.

• Handy for small machinery needing precise radial support
• Shielded ZZ keeps grit out while reducing maintenance
• Flange provides easy mounting and stable positioning
• Stainless steel resists corrosion in hobby environments