10-Pack 8x16x5mm Shielded Ceramic Bearing 688ZZ Miniature With Double Metal Shields Pre-Lubricated For Smooth Low-Friction Performance In Industrial Commercial And Mechanical Applications Ideal For Robotics And Precision Equipment

These miniature bearings are shielded and pre-lubricated, designed for precise motion in hobbyist devices, RC cars, drones, and compact machinery.

✅ Size: 8mm x 16mm x 5mm, shielded ZZ for dust protection
✅ Ceramic balls with chrome steel races for durability
✅ Pre-lubricated with grease for smooth operation
✅ Pack includes 10 bearings for multiple projects

💡 What is a pillow block bearing used for in small machinery? This handy component supports shafts and keeps alignment in compact setups like hobby CNCs, robotics, and conveyor systems.
- Supports rotating shafts in confined spaces while maintaining alignment
- Shielded design protects grease and excludes dust for longer life
- Hybrid ceramic variants offer reduced friction and wear