Sealed Ceramic Ball Bearing ABEC-5 With Si3N4 Balls 12x21x5mm Deep Groove Radial Bearing Chrome Steel Cage Dual Seals High Precision For CNC Machinery Robotic Applications Ideal For High Speed Precision Machinery
✔️ ABEC-5 grade, Si3N4 ceramic balls, double rubber seals
61801-2RS is a sealed, double-sealed radial deep groove bearing that uses ceramic balls for reduced wear and higher speed. It's a compact unit often used in electric motors, 3D printers, robots, and precision equipment where smooth rotation and long service life matter.
61801-2RS Sealed Ceramic Ball Bearing ABEC-5 Quality with Si3N4 Ceramic Balls (Silicon Nitride) 12mm x 21mm x 5mm. This hybrid bearing combines ceramic balls with chrome steel components for improved wear resistance and lower friction in high-speed applications. It’s pre-lubricated and sealed to keep out dust and contamination, making it ideal for precision assemblies and compact machinery.
✅ Deep groove radial bearing with Si3N4 ceramic balls and chrome steel cage✅ Double rubber seals for dust protection
✅ ABEC-5 quality for high-speed performance
✅ Dimensions: 12 mm ID, 21 mm OD, 5 mm width
✅ Lubrication: Grease SRL; sealed and self-lubricated
💡 What is a sealed ceramic ball bearing used for in precision machinery?
These bearings give smooth rotation and long life in compact systems where precision is key.
- Handy for electric motors, CNC machines, 3D printers - Great for tight tolerances and low friction in high-speed runs - Ideal for robotics joints and conveyors with limited space