623 ZZ MGK Deep Groove Ball Bearing 3x10x4

623 ZZ MGK Deep Groove Ball Bearing 3x10x4

623 ZZ MGK is a miniature single row deep groove ball bearing designed for high rotational speed operation in compact mechanical systems and precision drive assemblies. The 3x10x4 mm configuration is commonly used in micro electric motors, lightweight transmissions, automation equipment and compact rotating mechanisms requiring low rolling resistance and stable shaft guidance.

Deep groove ball bearings of the 623 series belong to miniature radial bearing solutions used in applications with restricted installation space and high rotational accuracy requirements. The deep raceway geometry enables stable ball guidance during continuous rotation while reducing vibration and friction losses.

The 623 ZZ MGK bearing is equipped with metal protective shields installed on both sides of the bearing. The ZZ designation indicates:

• metal dust shields
• reduced contamination ingress
• minimized grease leakage
• suitability for higher rotational speed compared with contact sealed bearings

ZZ metal shields do not create direct contact with the raceway surface, allowing the bearing to maintain very low rotational resistance and stable high speed operating behavior.

The 623 ZZ MGK bearing is widely used in:

• micro electric motors
• industrial automation equipment
• power tools
• laboratory devices
• miniature gearboxes
• guiding systems
• cooling fans
• precision rotating mechanisms

Miniature deep groove ball bearings are capable of supporting radial loads together with moderate axial loads acting in both directions. The non separable bearing design simplifies installation and maintains stable operating characteristics in lightweight drive systems.

The phrase 623 ZZ MGK 3x10x4 deep groove ball bearing is frequently searched in servicing applications involving precision equipment, compact drive assemblies and miniature rotating systems.

Construction and operating characteristics

The 623 ZZ MGK bearing is designed for compact industrial applications requiring high rotational speed capability and reduced rolling resistance.

Main construction features:

• single row ball bearing design
• miniature bearing construction
• deep raceway geometry
• ZZ metal shields on both sides
• low rotational torque
• suitable for high speed operation
• reduced contamination ingress
• long operational lifespan

ZZ shielded bearings are frequently selected for applications requiring higher rotational speed compared with rubber sealed 2RS bearings.

Industrial application context

Miniature MGK ball bearings are widely used in systems requiring precise rotational guidance and compact installation dimensions.

The 623 ZZ MGK model is commonly installed in:

• industrial automation systems
• electronic devices
• micro drive assemblies
• cooling systems
• lightweight transmissions
• measuring equipment
• precision mechanisms
• compact rotating units

Miniature ZZ shielded bearings are valued in industrial applications for their low friction characteristics and stable high speed operating performance.

Technical specification

Type: Single row deep groove ball bearing

Bearing designation: 623 ZZ

Manufacturer: MGK

Bearing type: Miniature deep groove ball bearing

Design: Non separable bearing

Internal clearance: CN standard clearance

Cage: Steel cage

Sealing: ZZ metal shields on both sides

Inner diameter: 3 mm

Outer diameter: 10 mm

Width: 4 mm

Load type: Radial loads and moderate axial loads

Applications: Precision drives, micro motors, automation systems, miniature machinery, electronic devices

FAQ

What does ZZ mean in ball bearings?

ZZ indicates metal protective shields installed on both sides of the bearing to reduce contamination ingress and grease leakage.

Is the 623 ZZ MGK bearing suitable for high speed operation?

Yes. ZZ metal shields generate lower friction compared with 2RS contact seals, allowing stable operation at high rotational speed.

Where are 623 ZZ miniature bearings commonly used?

They are commonly used in micro motors, automation systems, electronics, cooling fans and lightweight drive assemblies.

Which loads can the bearing support?

The bearing supports radial loads together with moderate axial loads acting in both directions.

Is the bearing factory lubricated?

Yes. The 623 ZZ MGK bearing is factory lubricated and ready for installation.