1623-ZZ Ball Bearing

The 1623-ZZ Ball Bearing is a deep groove ball bearing with double metal shields designed for applications requiring high rotational speed, low friction, and stable performance in industrial mechanical systems.

Manufactured from chrome steel and factory pre-lubricated, this model delivers smooth and efficient operation in continuous-use equipment. The ZZ configuration uses metal shields on both sides of the bearing to help reduce light debris contamination while maintaining lower rotational resistance compared to rubber-sealed bearings. (pgnbearings.com)

What is the 1623-ZZ Ball Bearing

The 1623-ZZ is a deep groove ball bearing designed to support radial loads and moderate axial loads with efficient operation and low rotational resistance.

The “ZZ” designation refers to double metal shields. Unlike 2RS bearings, ZZ models prioritize speed and reduced friction, making them common in high-speed industrial equipment and mechanical systems with lower moisture exposure. (AST Bearings)

Applications for the 1623-ZZ Bearing

The 1623-ZZ can be used in a wide range of industrial and mechanical systems, including:

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

Additionally, shielded bearings are commonly selected for applications requiring faster operation and reduced heat generation caused by friction. (NSK)

Benefits of the 1623-ZZ Ball Bearing

Double metal shields

The metal shields help reduce dust and light particle contamination without significantly increasing drag.

Improved high-speed performance

The ZZ configuration generates lower rotational resistance, making it suitable for higher RPM applications.

Chrome steel construction

Chrome steel provides mechanical strength, dimensional stability, and dependable durability in industrial environments.

Smooth operation

Deep groove ball bearing design helps minimize vibration and improve mechanical efficiency.

Choosing Between ZZ and 2RS Bearings

ZZ bearings are typically recommended for:

• High-speed applications
• Low-moisture environments
• Systems requiring lower friction

Meanwhile, 2RS bearings provide greater protection against water and heavy contaminants.

Maintenance Tips

Even with factory lubrication, several practices help maximize bearing life:

• Prevent shaft misalignment
• Reduce impact loads
• Monitor operating temperature
• Keep the system clean
• Inspect noise and vibration regularly

PGN Bearings Product Line

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

FAQ

What does ZZ mean on a bearing?

“ZZ” indicates metal shields on both sides of the bearing. (AST Bearings)

What is the difference between ZZ and 2RS bearings?

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

Is the 1623-ZZ pre-lubricated?

Yes. The bearing comes factory pre-lubricated.

Can this bearing be used in electric motors?

Yes. The 1623-ZZ is commonly used in electric motors and industrial rotating equipment.

Is chrome steel durable?

Yes. Chrome steel offers strong mechanical resistance and durability for industrial applications.