NMBF634ZZ Bearing

NMBF634ZZ Bearing
Key Specifications & Dimensions

• Inner Diameter (ID): 4 mm
• Outer Diameter (OD): 16 mm
• Width (Thickness): 5 mm
• Shield Type: Double metal shields (ZZ)
• Limiting Speed: Up to 40,000 RPM (Grease Lubrication)
• Material: Chrome Steel (e.g., 52100 steel) 

Common ApplicationsDue to its small footprint and high-speed tolerance, the 634ZZ is frequently used in: 

• Robotics and DIY automation projects
• 3D Printers and small cooling fans
• Skateboard and roller skate wheels
• RC models (drones, helicopters, and cars)