Ten Pack Shielded Miniature Ball Bearings 3x9x4 mm With Double Shielding, 3 mm Inner Diameter, 9 mm Outer Diameter, 4 mm Width, Chrome Steel Construction For Durability And Smooth Performance MR93ZZ

Pack of 10 Shielded 3x9x4 mm Mini Bearings for gear
✔️ 3x9x4 mm bore/OD, double shielded, greased, pack of 10 in tube

These MR93ZZ shielded miniature ball bearings are compact 3x9x4 mm units ideal for small gear trains, RC toys, drones, 3D printers, and precision robotics. With chrome steel raceways and double shields, they resist dust and debris while delivering smooth rotation. The 10-pack ships in a plastic tube for tidy storage and quick replacements.

✅ Inner diameter 3 mm (0.118 in), outer diameter 9 mm (0.354 in), width 4 mm (0.157 in)
✅ Material: chrome steel for durability and reliable performance
✅ Shielding: double shielded design protects against dust and grime
✅ Pre-lubricated with grease for immediate, low-maintenance use
✅ Dynamic load rating 570 N; static load 190 N; max speed 60,000 RPM
✅ Pack size: 10 bearings in a single plastic tube

💡 What is a shielded miniature ball bearing used for?

Shielded miniature ball bearings are handy in compact machinery where dust resistance matters. They provide smooth rotation and long life in small assemblies.

- For compact robotics, 3D printers, micro motors - Handy for hobby projects requiring quick swaps and low maintenance - Works with small shafts in tight spaces