The 688 ZZ Radial Ball Bearing (8165 mm) is a precision deep groove miniature bearing designed for smooth and reliable rotation in compact mechanical systems. It features double metal shields (ZZ) on both sides, which protect against dust and debris while maintaining low friction and stable performance.
This bearing is commonly used as anrobotics bearing for 8 mm rods, making it ideal for robotics projects, small motors, hobby mechanisms, CNC models, and precision assemblies where consistent radial load support is required.
Feature:
- Compact miniature bearing suitable for 8 mm rod and robotics applications
- Double metal shielded (ZZ) on both sides for effective dust protection
- Low friction design for smooth and stable rotation
- Suitable for moderate to high-speed operation
- Pre-lubricated and ready to install
- Durable construction with low maintenance requirement
Specification:
| Parameter | Details |
|---|---|
| Bearing Type | Deep Groove Ball Bearing |
| Model | 688 ZZ |
| Application | Robotics Bearing |
| Inner Diameter (ID) | 8 mm |
| Outer Diameter (OD) | 16 mm |
| Width | 5 mm |
| Shield Type | Double Metal Shield (ZZ) |
| Material | Carbon Steel |
| Lubrication | Pre-lubricated |
| Sealing | Dust resistant |
| Load Type | Radial |
| Operating Speed | Moderate to high-speed capable |
| Noise Level | Low |
| Maintenance | Low maintenance |
Package Includes:
1x 688 ZZ Miniature Deep Groove Radial Ball Bearing (8165 mm)





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