Miniature Shielded Bearing 3 Mm By 8 Mm By 4 Mm For RC Cars And Trucks Chrome Steel 52100 Alloy Double Shielded ZZ Seal Pre Lubricated And Low Friction High Precision Ball Bearing For Hubs Wheels And Steering Components

Single 3x8x4 mm Shielded Miniature Ball Bearing 693ZZ
✔️ 3x8x4 mm inner 3mm, outer 8mm, width 4mm, ZZ shields

This compact 693ZZ shielded ball bearing is built for small-scale precision, fitting into RC cars, micro drones, and other compact mechanical assemblies. Its double metal shields protect against dust and debris, while it arrives pre-lubricated for immediate operation.

✅ Inner diameter: 3 mm
✅ Outer diameter: 8 mm
✅ Width: 4 mm
✅ Shielding: double metal ZZ for dust protection
✅ Lubrication: pre-lubricated with grease
✅ Material: 52100 chrome steel
✅ Dynamic load rating Cr: 550 N
✅ Static load rating Cor: 170 N
✅ Maximum speed: 64,000 RPM

💡 What is a small sealed ball bearing used for in hobby builds? It helps reduce friction and support rotating parts in tight spaces. - 3x8x4 mm sealed ball bearing used in RC cars, micro drones, and gear reducers - shielded ZZ design protects against dust in compact setups - pre-lubricated with grease for immediate operation