6903 ZZ EZO 17x30x7 Deep Groove Ball Bearing

Design and Construction

The 6903 ZZ EZO 17x30x7 is a compact deep groove ball bearing from the 6900 series, engineered to deliver increased load capacity while maintaining a relatively small footprint. Compared to thinner series such as 6800, this model features a wider cross-section, improving strength and durability.

The ZZ designation indicates double metal shields, which protect the internal components from dust and contaminants while keeping friction low. Manufactured by EZO Japan, this bearing ensures high precision, smooth raceway finishing, and consistent performance in demanding applications.

Technical Specifications

Inner diameter: 17 mm
Outer diameter: 30 mm
Width: 7 mm
Type: deep groove ball bearing
Shielding: ZZ metal shields
Series: 6903
Manufacturer: EZO Japan
Material: high-grade bearing steel

Long tail keywords:
deep groove ball bearing 17x30x7
6903 ZZ EZO bearing
compact bearing 17 mm shielded

Industrial Applications

This deep groove ball bearing is widely used in electric motors, gear systems, pumps, automation equipment, and industrial machinery where compact size and increased durability are required.

Its design makes it suitable for applications that demand a balance between space efficiency and load capacity. The ZZ shields allow operation in moderately contaminated environments.

Operational Advantages

The 6903 ZZ EZO bearing offers higher load capacity than thin-section bearings while maintaining efficient operation. The metal shields reduce contamination ingress, helping extend service life.

It provides low noise, minimal vibration, and stable performance even at high speeds. The optimized internal geometry ensures effective load distribution and long-term reliability.

Main Description

6903 ZZ EZO 17x30x7 is a compact deep groove ball bearing with double metal shields, designed for applications requiring enhanced durability, high precision, and reliable high-speed operation.

As part of the deep groove ball bearing category, this model represents a balanced solution between thin-section and standard bearings, offering both strength and space efficiency. It supports radial loads and light axial loads, making it suitable for a wide range of industrial applications.

Technical snippet section:
6903 ZZ EZO 17x30x7 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 6903 ZZ model is optimized for applications requiring higher strength while maintaining compact dimensions.

FAQ

Is the 6903 ZZ EZO bearing pre-lubricated?
Yes, it is factory pre-lubricated and ready for installation.

How does the 6903 series differ from 6803?
It has a thicker cross-section and higher load capacity.

Can it be used in dusty environments?
Yes, the ZZ shields provide protection in moderately dusty conditions.

Is this bearing suitable for high-speed applications?
Yes, it is designed for high rotational speeds with low friction.

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