637 Full Ceramic Si3N4 Bearings 7x26x9 Miniature 20 Pack High Precision Silicon Nitride Ball Bearings For Low Friction, High Temperature And Corrosion Resistant Performance In Precision Machinery, Robotics, CNC, Medical Devices And Hobby Projects

Compact 637 full ceramic bearings built with Si3N4 ceramic balls and races, PTFE cage, and corrosion resistance. Ideal for compact gearboxes, robotics, precision instruments, and lab equipment where dry operation and long life matter.

✅ ID 7 mm; OD 26 mm; W 9 mm
✅ Ball material: Si3N4 ceramic; Cage: PTFE
✅ Pack: 20 bearings

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

Ceramic full bearings excel in high-speed, low-friction motion and corrosion resistance, making them handy in demanding setups.

• Handy for high-speed spindles and robotic joints
• Low friction reduces wear and heat buildup
• Si3N4 ceramic balls offer long life in clean or dry environments