6004 ZZ NSK Ball Bearing 20x42x12

Design and manufacturing quality

The 6004 ZZ deep groove ball bearing from NSK is a single row bearing designed for precise and long-term operation in industrial environments. With standard dimensions 20x42x12, this bearing is widely used in electric motors, pumps, fans and general machinery.

The ZZ metal shields on both sides protect the rolling elements against dust and solid contaminants while allowing high rotational speeds. The deep groove raceway design ensures low friction, quiet running and stable performance throughout the bearing’s service life.

Industrial applications

The 6004 ZZ NSK deep groove ball bearing is commonly used in industrial applications where reliability and consistent performance are essential. Typical applications include electric motors, conveyors, production machinery, pumps and drive systems.

Its design allows the bearing to support both radial loads and moderate axial loads in both directions. It can be installed as a standalone component or as part of a complete bearing unit working together with a bearing housing, offering flexibility in machine design and maintenance.

Key advantages for B2B customers

For B2B customers, the 6004 ZZ NSK offers proven quality, stable availability and predictable operating parameters. Factory lubrication combined with metal shields reduces maintenance requirements and downtime. This makes the bearing a preferred choice for OEMs, maintenance departments and industrial service providers seeking reliable standard components.

Main product description

The 6004 ZZ NSK deep groove ball bearing 20x42x12 is engineered for continuous industrial operation. The metal shields help retain lubricant and protect internal components, contributing to high durability and long service intervals. Low rolling resistance allows efficient operation even at higher speeds, while precision manufacturing ensures even load distribution.

This deep groove ball bearing is suitable for a wide range of industrial applications where dimensional accuracy and operational stability are critical. It performs reliably in both new machine designs and replacement applications. The bearing integrates easily into bearing housings and complete bearing units, ensuring long-term operational safety.

FAQ - frequently asked questions

What does ZZ mean in a 6004 bearing?
ZZ indicates metal shields on both sides of the bearing.

Is the 6004 ZZ NSK suitable for electric motors?
Yes, it is widely used in electric motors operating under continuous load.

What types of loads can this bearing handle?
It supports radial loads and moderate axial loads in both directions.

Does the bearing require relubrication?
No, it is factory-lubricated and designed for long maintenance-free operation.

Can it be used in a bearing housing?
Yes, it is compatible with standard bearing housings and bearing unit configurations.