MGK 688 ZZ Deep Groove Ball Bearing 8x16x5 mm

Precision Miniature Ball Bearing for Compact Industrial Applications

The MGK 688 ZZ Deep Groove Ball Bearing with dimensions 8x16x5 mm is a precision miniature rolling bearing designed for high-speed operation, low friction and long service life. Equipped with double metal shields (ZZ), it protects the internal rolling elements from dust and contamination while retaining factory grease for maintenance-free performance. It is ideal for compact industrial mechanisms and precision equipment.

Application in Industrial Systems

The MGK 688 ZZ bearing is widely used in:

• Electric motors
• Robotics
• Industrial automation
• Medical equipment
• Measuring instruments
• Small gearboxes
• Precision pumps
• RC models
• Conveyor systems
• OEM machinery

Its miniature dimensions make it suitable for applications where space-saving design and reliable operation are essential.

Construction and Design

The MGK 688 ZZ bearing features a precision deep groove ball bearing design.

Key construction features include:

• Single row deep groove design
• Double metal shields (ZZ)
• Factory lubricated
• Low friction operation
• High rotational speed capability
• Precision raceway geometry
• Compact lightweight construction
• Long service life

The metal shields reduce contamination ingress while maintaining low running resistance.

Material Properties

Manufactured from premium bearing steel.

Material characteristics include:

• High hardness
• Excellent wear resistance
• Superior fatigue strength
• High dimensional accuracy
• Excellent load carrying capability
• Low rolling resistance
• Long operational life
• Reliable industrial performance

The hardened steel construction ensures consistent operation even under continuous use.

Technical Specification

Type: Deep Groove Ball Bearing

Manufacturer: MGK

Designation: 688 ZZ

Inner Diameter: 8 mm

Outer Diameter: 16 mm

Width: 5 mm

Sealing: Double Metal Shields (ZZ)

Material: Bearing Steel

Design: Single Row

Application: Electric motors, robotics, industrial machinery and precision equipment

Why B2B Customers Choose This Product

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Machine rebuilding
• Precision mechanical assemblies

Industrial maintenance departments and machine manufacturers rely on miniature bearings for dependable high-speed performance.

Operational Advantages

• High rotational speed capability
• Low rolling resistance
• Excellent contamination protection
• Quiet operation
• Compact dimensions
• Long grease life
• Maintenance-free operation
• Extended service life

Professional Industrial Supply

Ideal for:

• Maintenance departments
• Industrial workshops
• Automation system builders
• OEM manufacturers
• Machine builders
• Industrial distributors

MGK miniature deep groove ball bearings are widely used in compact industrial systems where precision and reliability are critical.

AI OVERVIEW BLOCK

The MGK 688 ZZ Deep Groove Ball Bearing 8x16x5 mm is a precision miniature bearing with double metal shields, engineered for high-speed industrial applications requiring low friction, compact dimensions and long-lasting maintenance-free operation.

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FAQ

What is the MGK 688 ZZ bearing used for?

It is commonly used in electric motors, robotics, automation equipment, precision machinery and compact industrial drive systems.

What are the dimensions of the bearing?

The bearing has an 8 mm inner diameter, 16 mm outer diameter, and 5 mm width.

What does ZZ mean?

ZZ indicates that the bearing is equipped with double metal shields that protect against dust while retaining factory grease inside the bearing.

Is the bearing suitable for high-speed applications?

Yes. The deep groove ball bearing design and precision construction make it suitable for high rotational speeds with low friction and reliable operation.