25 Pack Sealed Full Ceramic Si3N4 Ball Bearings 12x24x6mm 6901-2RS Durable High Speed Low Friction Set For Precision Machinery Robotics CNC Medical Equipment And Industrial Applications

These are full ceramic ball bearings built from silicon nitride (Si3N4), designed for precision applications where metal bearings may wear or corrode. They’re commonly used in robotics, CNC equipment, and high-speed machinery where smooth, reliable motion matters.

✅ Inner diameter (ID): 12 mm
✅ Outer diameter (OD): 24 mm
✅ Width: 6 mm
✅ Material: Si3N4 ceramic races and balls; PTFE cage
✅ Seal: 2RS sealed

💡 What is a sealed full ceramic ball bearing used for in precision machinery?

Ceramic bearings excel in demanding setups where heat, friction, and contamination can shorten life. They offer longevity and steady performance under tough conditions.

• sealed full ceramic bearing for high-speed, low-friction operation
• resists moisture, chemicals, and harsh environments
• ideal for linear slide units, spindles, and precision robotics