2x5x2.5 Ceramic Shielded Ball Bearing Miniature Set With Double ZZ Shields Pre Lubricated Grease 52100 Alloy Steel Construction For High Durability And Low Friction Precision Fit For Micro Machinery Remote Control Models And Robotics Projects

These tiny bearings measure 2x5x2.5 mm and function as a sealed ball bearing using ceramic Si3N4 balls with ZZ shields to resist dust. Pre-lubricated with grease, they’re ideal for precise, low-friction motion in micro motors, 3D printers, compact gear systems, and other small linear motion assemblies.

✅ 2 mm bore, 5 mm outer diameter, 2.5 mm width
✅ Ceramic Si3N4 balls with ZZ shield seals for dust protection
✅ Pre-lubricated with grease for immediate use
✅ 52100 chrome steel races for durability
✅ One bearing per package (single unit)

💡 What is a ceramic shielded bearing used for in small precision machinery? A handy pick for compact gear, motors, and precision builds. - For accurate, low-friction rotation in hobby robotics - Handy in micro motors, 3D printers, and RC gear - Ceramic balls with chrome steel races offer longevity - ZZ shields keep contaminants out and grease in