684 ZZ Miniature Deep Groove Ball Bearing (4×9×4 mm) - Double Metal Shielded

The 684 ZZ Miniature Bearing is a precision deep groove ball bearing designed for compact and high-speed applications. It features double metal shields (ZZ) on both sides to protect against dust and debris while maintaining low friction and smooth rotation.

The 684 ZZ bearing is for ensuring smooth and precise motion in small motors, 3D printers, robotics, CNC machine and precision mechanical assemblies where space is limited and reliable performance is required.

Feature:

• Compact miniature bearing for space-constrained designs
• Double metal shield (ZZ) for dust protection and reduced contamination
• Low friction for smooth and stable rotation
• Suitable for high-speed, low-load applications
• Pre-greased and ready to install

Specification:

Bearing Type	Deep Groove Ball Bearing
Model	684 ZZ
Inner Diameter (ID)	4 mm
Outer Diameter (OD)	9 mm
Width	4 mm
Shield Type	Double Metal Shield (ZZ)
Lubrication	Pre-lubricated with grease
Sealing	Dust-resistant (not waterproof)
Operating Speed	High-speed capable
Noise Level	Low
Maintenance	Maintenance-free

Package Includes:

1pc x 684 ZZ Miniature Deep Groove Ball Bearing (4×9×4 mm) - Double Metal Shielded