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
✔️ 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