6004-ZZ Ball Bearing

The 6004-ZZ Ball Bearing is a deep groove ball bearing engineered for applications requiring high rotational efficiency, low friction, and dependable performance in compact continuous-duty equipment.

The ZZ configuration uses metal shields on both sides of the bearing, supporting lower rolling resistance and strong performance in medium and high-speed applications. This construction makes the 6004-ZZ widely used in electric motors, industrial ventilation systems, and automated equipment where operating speed and smooth rotation are priorities.

Manufactured from chrome steel and supplied factory pre-lubricated, the bearing delivers stable operation, reduced vibration, and long service life in industrial rotating systems.

Common Applications for the 6004-ZZ

The 6004-ZZ is frequently used in equipment operating through continuous rotational cycles, including:

• Compact electric motors
• Industrial fans
• HVAC equipment
• Power tools
• Automated systems
• Small industrial pumps
• Material handling equipment
• Light production machinery

The 6000 series is recognized for combining compact dimensions with dependable mechanical performance in continuous industrial applications.

Main Features of the 6004-ZZ

Metal shields for improved rotational efficiency

Metal shields help reduce rolling resistance and support high-RPM operation.

Smooth operation in compact systems

Deep groove geometry provides consistent rotation and dependable mechanical stability even in smaller equipment.

Reduced operational vibration

This bearing helps minimize oscillation during operation, supporting quieter performance in motors and automated systems.

Strong high-speed response

The 6004-ZZ is designed for applications where rotational speed and mechanical efficiency are important.

Chrome steel construction

Manufactured from hardened chrome steel to provide dependable mechanical strength and durability in continuous industrial applications.

When Is the ZZ Configuration the Best Choice?

The 6004-ZZ is commonly recommended when applications require:

• lower rolling resistance
• high-RPM operation
• continuous-duty performance
• compact equipment
• improved energy efficiency

Difference Between 6004-ZZ and 6004-2RS

Although both are deep groove ball bearings, the models are optimized for different priorities:

6004-ZZ

• metal shields
• lower operational friction
• optimized for higher speed
• better suited for dry environments

6004-2RS

• rubber seals
• improved grease retention
• additional protection against fine particles
• focused on reduced maintenance

Recommendations for Better Performance

To improve bearing service life:

• Use proper installation tools
• Avoid shaft misalignment
• Control operating temperature
• Monitor excessive vibration
• Avoid direct installation impact

PGN Bearings Product Line

PGN Bearings supplies components for rotating systems, mechanical power transmission, and industrial automation. The catalog includes deep groove ball bearings, mounted bearings, pillow blocks, roller chains, flanged bearings, and solutions engineered for continuous industrial applications.

FAQ

What does ZZ mean on a bearing?

“ZZ” indicates metal shields on both sides of the bearing.

Does the 6004-ZZ come pre-lubricated?

Yes. The bearing comes factory pre-lubricated.

Is this bearing suitable for high-speed operation?

Yes. The 6004-ZZ is designed for medium and high-speed industrial applications.

Can this model be used in electric motors?

Yes. The 6004-ZZ is widely used in compact motors and automated systems.

What is the advantage of metal shields?

They help reduce rolling resistance and improve high-RPM operational performance.