Factory Double Groove Ball Bearing Deep Shield Supporting Steel Bearings 4mm for 3D Printer or Robotics or DIY Projects (623ZZ, 3*10*)

This 623ZZ deep groove ball bearing offers high quality, high speed, low noise, and protect the ball from dust by the shield. 

Specifications:
Inner Diameter: 3 mm;
Outer Diameter: 10 mm;
Thickness: 4 mm.

Feathers:

1, Closed with metal shields to protect the bearing from dust or any possible contamination.

2, Widely used in: Roller skates, Skateboarding, Twisting cars, Running shoes, In-line wheels, Double row wheels, MTB, SUV and other Extreme sports equipment.

3, Fit for skateboards, inline skates, roller skates, scooters, and other skating applications, also available for 3D printer wheel bearings, CNC, etc.

4, Also used in industrial engineering, such as Machinery, Power Transmission, Instrumentation, Household appliances, Internal combustion engines, Transport vehicles, Agricultural machinery, Construction machinery.