63801 ZZ EZO 12x21x7 Deep Groove Ball Bearing

Design and Construction

The 63801 ZZ EZO 12x21x7 is a compact deep groove ball bearing from the extended 6800 series, designed to combine a thin-section profile with slightly increased width for improved load capacity. Compared to standard 6801 bearings, this model offers a wider structure while still maintaining space-saving characteristics.

The ZZ designation indicates double metal shields, which protect internal components from dust and contaminants while allowing high-speed operation with minimal friction. The bearing is manufactured by EZO Japan, ensuring high precision, smooth raceway finishing, and consistent reliability.

Technical Specifications

Inner diameter: 12 mm
Outer diameter: 21 mm
Width: 7 mm
Type: deep groove ball bearing
Shielding: ZZ metal shields
Series: 63801
Manufacturer: EZO Japan
Material: high-grade bearing steel

Long tail keywords:
deep groove ball bearing 12x21x7
63801 ZZ EZO bearing
compact shielded bearing 12 mm

Industrial Applications

This deep groove ball bearing is widely used in compact mechanical systems where both space efficiency and durability are required. Typical applications include electric motors, automation systems, precision devices, conveyors, and light industrial machinery.

Its geometry allows it to operate efficiently in systems that require a balance between compact size and improved load handling. It supports both radial and light axial loads.

Operational Advantages

The 63801 ZZ EZO bearing provides a unique balance between thin-section design and increased structural strength. Compared to ultra-thin bearings, it offers better load capacity while still fitting into compact assemblies.

Key advantages:

• compact but reinforced structure
• high-speed capability
• low friction and smooth operation
• protection against contamination
• extended service life

Its design ensures stable operation, reduced wear, and improved efficiency in industrial environments.

Main Description

63801 ZZ EZO 12x21x7 is a compact deep groove ball bearing with double metal shields, designed for applications requiring a balance between minimal space usage and increased load capacity.

As part of the deep groove ball bearing category, this model represents an extended thin-section solution, offering improved durability compared to standard 6800 series bearings. It enables efficient load transfer and reliable high-speed operation in modern mechanical systems.

Technical snippet section:
63801 ZZ EZO 12x21x7 deep groove ball bearing is a shielded bearing designed for compact assemblies, providing low friction, increased load capacity, and protection against contaminants.

Within the broader deep groove ball bearing cluster, the 63801 ZZ model is optimized for applications requiring compact size with enhanced strength.

FAQ

Is the 63801 ZZ EZO bearing pre-lubricated?
Yes, it is factory pre-lubricated and ready for installation.

Is this bearing open or shielded?
It is shielded with double metal shields ZZ.

How does 63801 differ from 6801?
It has a greater width, offering higher load capacity.

Can it be used in dusty environments?
Yes, the metal shields provide basic protection.

What loads can this bearing handle?
Primarily radial loads and light axial loads.