10 Pack Flanged Shielded Bearings MF84ZZ 4mm x 8mm x 3mm Miniature Ball Bearing With Flange Chrome Steel Construction Pre Lubricated And Double Shielded ZZ For Dust Resistance

Ten-Pack MF84ZZ Flanged Shielded Bearings 4x8x3mm
✔️ 10 bearings, 4x8x3mm, chrome steel, pre-lubed, ZZ shields

These compact flanged shielded bearings are miniature ball bearings sized 4x8x3 mm. They are built from hardened chrome steel for durability and feature double metal shields (ZZ) to resist dust and debris. Pre-lubricated with grease allows immediate use in tight spaces such as RC hobby cars, model kits, tiny robotics, and precision gear assemblies.

✅ Bore: 4 mm; outer diameter: 8 mm; width: 3 mm
✅ Flange with ZZ shielded design for dust protection
✅ Chrome steel construction for durability
✅ Pre-lubricated with grease for smooth operation
✅ Dynamic load rating Cr: 400 N; static rating 140 N
✅ Maximum speed: 61,000 RPM with grease lubrication
✅ Pack size: 10 bearings

💡 What is the purpose of a 4x8x3 mm flanged shielded bearing in small mechanical assemblies?

These tiny bearings help align shafts in compact assemblies while keeping dirt out and grease in.

• Perfect for RC cars, micro robotics, model kits, and DIY gear trains
• Flange keeps shaft alignment steady in tight chassis and limited space
• Shielded ZZ configuration protects against dust and reduces maintenance