1638-ZZ Ball Bearing

The 1638-ZZ Ball Bearing is a deep groove ball bearing with double metal shields designed for applications requiring high rotational speed, low friction, and protection against external particles in industrial mechanical systems.

Manufactured from chrome steel and factory pre-lubricated, this model delivers smooth operation, operational stability, and dependable performance in continuous rotating applications. The ZZ metal shield configuration helps reduce dust and debris contamination without significantly increasing friction, making the bearing ideal for higher-speed applications.

What is the 1638-ZZ Ball Bearing

The 1638-ZZ is a deep groove ball bearing designed to support radial loads and moderate axial loads with low operational friction.

The “ZZ” designation means the bearing features metal shields on both sides. Unlike 2RS rubber-sealed models, ZZ bearings typically provide lower rotational resistance and better performance in high-speed applications.

Additionally, this design helps protect internal components from light debris and moderate contamination.

Where the 1638-ZZ Bearing is Used

The 1638-ZZ can be used in multiple industrial and mechanical applications.

Common applications include:

• Electric motors
• Industrial machinery
• Agricultural equipment
• Conveyor systems
• Automotive equipment
• Industrial tools
• CNC machinery
• High-speed rotating systems

Additionally, ZZ bearings are commonly used in applications requiring high rotational speed and low operational friction.

Benefits of the 1638-ZZ Ball Bearing

Double metal shields (ZZ)

The metal shields help reduce dust and debris contamination without significantly increasing rotational resistance.

High-speed capability

This model is suitable for higher RPM applications due to the reduced friction generated by metal shields.

Chrome steel construction

Chrome steel provides mechanical strength, durability, and consistent performance in continuous industrial applications.

Factory pre-lubricated

The bearing comes pre-lubricated for easier installation and reduced initial maintenance requirements.

How to Choose the Right Bearing

When selecting a ball bearing, it is important to consider:

• Applied load type
• Rotational speed
• Seal or shield requirements
• Operating environment
• Dimensional compatibility

ZZ bearings are typically recommended for less aggressive environments and applications prioritizing speed and reduced friction.

Maintenance Tips

Even with shielded and pre-lubricated construction, some practices help preserve bearing performance:

• Check shaft alignment
• Avoid overload conditions
• Monitor excessive vibration
• Keep the operating environment clean
• Perform periodic inspections

These practices help extend operational life and improve equipment reliability.

PGN Bearings Product Line

PGN Bearings provides industrial solutions for rotating applications and mechanical movement systems. The product line includes ball bearings, pillow block bearings, roller chains, steel balls, and industrial components designed for dependable performance and operational reliability.

FAQ

What does ZZ mean on a bearing?

“ZZ” means the bearing has metal shields on both sides.

What is the difference between ZZ and 2RS bearings?

ZZ bearings use metal shields and generally provide lower friction and higher speed capability, while 2RS bearings use rubber seals for improved moisture protection.

Is the 1638-ZZ pre-lubricated?

Yes. The bearing comes factory pre-lubricated.

Can this bearing be used in electric motors?

Yes. The 1638-ZZ is commonly used in electric motors and rotating industrial equipment.

What are the benefits of chrome steel?

Chrome steel provides mechanical strength, durability, and dependable industrial performance.