608ZZ EZO 8x22x7 mm - Deep Groove Ball Bearing

608ZZ EZO 8x22x7 mm - Deep Groove Ball Bearing

EZO 608ZZ is a single-row deep groove ball bearing with dimensions 8x22x7 mm, fitted with metal shields on both sides. The ZZ designation indicates non-contact metal shields that help protect the bearing interior against contaminants and retain lubricant while maintaining low running friction.

Technical data

EZO 608ZZ dimensions

The basic dimensions are:

d: 8 mm
D: 22 mm
B: 7 mm

Complete dimensional specification:

8x22x7 mm

The 608 is a widely used compact deep groove ball bearing size. When selecting a replacement, the dimensions, manufacturer, closure type and required operating characteristics should all be considered.

What does 608ZZ mean?

The complete 608ZZ designation identifies both the bearing size and closure configuration.

608 - deep groove ball bearing size with dimensions 8x22x7 mm.

ZZ - metal shields on both sides.

The ZZ version should be distinguished from an open 608 bearing and from versions fitted with elastomer seals.

EZO 608ZZ construction

EZO 608ZZ is a single-row deep groove ball bearing. Its basic construction consists of:

• inner ring,
• outer ring,
• balls,
• cage,
• two metal shields.

The deep raceway grooves are designed primarily to accommodate radial loads. Deep groove ball bearings can also accommodate axial loads within the operating limits of this bearing type.

What does ZZ mean?

ZZ indicates a metal shield on each side of the bearing.

The shields help to:

• reduce the ingress of contaminants,
• protect the raceways and rolling elements,
• retain lubricant inside the bearing,
• maintain low running friction.

ZZ metal shields are non-contact components and should not be confused with elastomer contact seals.

608ZZ vs 608-2RS

Both versions have the same basic dimensions:

8x22x7 mm

The main difference is the closure system.

608ZZ - metal shields on both sides.

608-2RS - seals on both sides.

The ZZ version uses non-contact metal shields and is advantageous where low running friction is important. The 2RS version uses a different sealing system and provides different protection and friction characteristics.

The correct version should be selected according to operating speed, contamination level and environmental conditions.

608ZZ vs open 608

Both 608ZZ and an open 608 share the same basic 8x22x7 mm dimensions.

An open 608 bearing has no shields or seals, while 608ZZ has metal shields on both sides.

The ZZ suffix is therefore an important part of the complete bearing designation and identifies its specific closure configuration.

608 bearing 8x22x7 mm

With an 8 mm bore, 22 mm outside diameter and 7 mm width, EZO 608ZZ is a compact bearing suitable for small rotary assemblies and mechanisms.

Many different bearing variants are available in the 608 size. Identical 8x22x7 mm dimensions do not necessarily mean identical construction or operating characteristics.

Selection and interchangeability

When selecting an EZO 608ZZ, verify:

• complete 608ZZ designation,
• 8 mm bore diameter,
• 22 mm outside diameter,
• 7 mm width,
• metal shields on both sides,
• required load capacity,
• operating speed,
• environmental conditions,
• lubrication requirements,
• shaft and housing fits.

Matching the 8x22x7 mm dimensions alone does not confirm complete functional interchangeability.

Applications

608-series deep groove ball bearings are used in a wide range of compact mechanisms and rotary assemblies where small installation dimensions and efficient shaft guidance are required.

The suitability of EZO 608ZZ for a specific application should be determined according to actual loads, rotational speed, environmental conditions and equipment design requirements.

Installation

Mounting force should not be transmitted through the balls and raceways.

When fitting the bearing onto a shaft, force should be applied to the inner ring. When pressing the bearing into a housing, force should be applied to the outer ring.

Direct pressure on the ZZ metal shields should also be avoided during installation.

Alternative designations and search references

• EZO 608ZZ
• 608ZZ EZO
• 608 ZZ EZO
• EZO 608 ZZ
• 608ZZ 8x22x7
• EZO 608ZZ 8x22x7
• 608 ZZ 8x22x7
• 608 bearing 8x22x7
• 608 ZZ bearing
• 608 shielded bearing

FAQ - EZO 608ZZ

What are the dimensions of EZO 608ZZ?

The bearing measures 8x22x7 mm, with an 8 mm bore, 22 mm outside diameter and 7 mm width.

What type of bearing is EZO 608ZZ?

It is a single-row deep groove ball bearing.

What does ZZ mean in 608ZZ?

ZZ indicates metal shields on both sides of the bearing.

Are the ZZ shields contact seals?

No. ZZ metal shields use a non-contact design, helping maintain low running friction.

Are 608ZZ and 608-2RS the same size?

Yes. Their basic dimensions are 8x22x7 mm, but they use different closure systems.

What is the difference between 608ZZ and 608-2RS?

608ZZ uses metal shields on both sides, while 608-2RS uses seals. This results in different protection and friction characteristics.

Is EZO 608ZZ an open bearing?

No. It is fitted with metal shields on both sides.

Can any 8x22x7 mm bearing replace EZO 608ZZ?

Not automatically. The closure type, bearing specification and operating requirements should also be verified.

EZO 608ZZ - key information

EZO 608ZZ 8x22x7 mm is a single-row deep groove ball bearing with metal shields on both sides. It has an 8 mm bore, 22 mm outside diameter and 7 mm width. The non-contact ZZ shields help protect the bearing interior and retain lubricant while maintaining low running friction.

Available from simmering.pl, a specialist supplier of bearings and industrial components. Stock in Poland with worldwide shipping.