Open Ceramic Ball Bearing Si3N4 With Stainless Steel Cage Premium ABEC 5 Quality 15x28x7mm High Precision Radial Deep Groove Bearing For Robotics CNC Machines And Hobby Projects Low Friction EMQ Grade

Open, ceramic-based hybrid ball bearing designed for high-speed, low-friction rotation. This 15x28x7 mm bearing is ideal for electric motors, precision tools, 3D printers, CNC machines, and robotics where smooth rotation and long service life matter. Pack size: 1 bearing.

✅ Open deep groove radial bearing with ceramic Si3N4 balls in stainless steel cage
✅ Inner diameter 15 mm, outer diameter 28 mm, width 7 mm
✅ Material: stainless steel race and cage; ceramic balls
✅ Precision: ABEC-5 (EMQ) tight tolerances for high-speed operation

💡 What is a ceramic bearing used for in high speed machinery?

Handy for reducing friction and wear in fast-spinning parts.

• High-speed, low-friction operation for electric motors and precision tools
• Ceramic Si3N4 balls resist wear and heat better than steel
• Hybrid design with stainless steel cage for durability
• Fits standard bore and OD sizes for easy upgrades