608 ZZ (8x22x7) Deep Groove Ball Bearing, Miniature Bearing

Model Number: 608ZZ
Bearing Type: Deep Groove Ball Bearing - This is the most common type of rolling bearing, designed to handle both radial (perpendicular to the shaft) and axial (parallel to the shaft) loads in both directions.  
 
Inner Diameter (Bore): 8 mm (This is the diameter of the hole in the center of the bearing that fits onto a shaft.)  
 
Outer Diameter: 22 mm (This is the outside diameter of the bearing.)  
 
Width (Thickness): 7 mm (This is the width of the bearing.)  
 
Shields: Double Metal Shields (ZZ) - The "ZZ" suffix indicates that the bearing has non-contact metal shields on both sides. These shields provide excellent protection against the ingress of dust, dirt, and other contaminants, helping to maintain lubricant integrity and extend the bearing's lifespan.  
 
 
 
Lubrication: Usually pre-lubricated with grease to ensure smooth and efficient operation right out of the box. The metal shields help to retain this lubricant.  
 
 
High Speed Capability: Deep groove ball bearings are well-suited for moderate to high-speed applications.  
 
Common Applications:

The 608ZZ bearing's combination of size, load capacity, and shielded design makes it incredibly versatile. Some of its most common applications include:

Skateboards and Inline Skates: A standard in the wheels for smooth rolling.  
 
3D Printers: Used in linear motion systems and extruder motors.  
 
Robotics: Found in various joints and moving parts of robotic arms and platforms.  
 
Small Electric Motors: Used in fans, pumps, and other small motor-driven devices.  
 
Model Making: Employed in RC cars, airplanes, and other hobbyist projects.  
 
Automation Equipment: Used in conveyors, pulleys, and other automated systems.  
 
Fitness Equipment: Found in exercise bikes and treadmills.
Medical Devices: Used in certain diagnostic and therapeutic equipment.