R12-ZZ Ball Bearing

The R12-ZZ Ball Bearing is an imperial deep groove ball bearing engineered for industrial and mechanical applications requiring high rotational speed, low rolling resistance, and dependable continuous-duty operation.

Equipped with double metal shields (ZZ), this bearing helps reduce entry of light particles while maintaining lower rolling resistance compared to rubber-sealed models. Manufactured from chrome steel and supplied factory pre-lubricated, the bearing is widely used in electric motors, industrial fans, rotating equipment, and compact mechanical systems.

Applications for the R12-ZZ

The R12-ZZ is commonly used in industrial equipment and rotating mechanical systems, including:

• Electric motors
• Industrial fans
• HVAC equipment
• Light-duty pumps
• Industrial tools
• Conveyor systems
• Automated machinery
• Imperial-size industrial applications

R series bearings are commonly used in North American equipment and inch-based industrial systems.

Features of the R12-ZZ Ball Bearing

Double metal shields

Metal shields help reduce entry of light particles while supporting lower operational friction in high-speed applications.

Excellent high-RPM performance

Deep groove geometry supports stable and efficient operation in continuous high-speed systems.

Smooth and quiet operation

This bearing delivers consistent rotation, reduced vibration, and dependable performance in continuous industrial applications.

Chrome steel construction

Manufactured from hardened chrome steel to provide dependable mechanical strength and long service life in light and medium industrial systems.

Versatile imperial configuration

The imperial format simplifies maintenance and replacement in U.S.-manufactured equipment and traditional industrial machinery.

When to Use a ZZ Bearing

ZZ bearings are commonly recommended for:

• High-speed equipment
• Dry environments
• Continuous-duty applications
• Compact systems
• Low-friction machinery

2RS bearings are generally selected when stronger sealing protection is required against moisture and external debris.

Usage Recommendations

To improve bearing service life:

• Check shaft alignment
• Avoid excessive impacts
• Control abnormal vibration
• Monitor operating temperature
• Use proper installation methods

PGN Bearings Product Line

PGN Bearings supplies industrial components for rotating systems and mechanical power transmission applications. The product line includes ball bearings, roller chains, pillow block bearings, flanged bearings, steel balls, and additional products engineered for dependable continuous industrial performance.

FAQ

What does ZZ mean on a bearing?

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

Does the R12-ZZ come pre-lubricated?

Yes. The bearing comes factory pre-lubricated.

Is this bearing suitable for high-speed operation?

Yes. The R12-ZZ is designed for high-speed industrial and low-friction applications.

Can this bearing be used in electric motors?

Yes. The R12-ZZ is widely used in electric motors, industrial fans, and compact mechanical systems.

What is the advantage of metal shields?

Metal shields help reduce friction and improve performance in high-RPM systems.