MGK 687 ZZ Deep Groove Ball Bearing 7x14x5 mm

Precision Miniature Ball Bearing for Compact Industrial Applications

The MGK 687 ZZ Deep Groove Ball Bearing with dimensions 7x14x5 mm is a high-quality single row deep groove ball bearing engineered for high rotational speeds, low friction and reliable long-term performance. Equipped with double metal shields (ZZ), it protects the rolling elements against dust and contamination while retaining factory grease for maintenance-free operation. Its compact size makes it ideal for precision mechanical assemblies and industrial equipment.

Application in Industrial Systems

The MGK 687 ZZ bearing is widely used in:

• Electric motors
• Industrial automation
• Robotics
• Precision instruments
• Small gearboxes
• Medical equipment
• Miniature pumps
• Electronic devices
• OEM machinery
• Linear motion systems

Its miniature dimensions make it an excellent choice for compact mechanisms requiring reliable rotational performance.

Construction and Design

The MGK 687 ZZ bearing is designed for precision and durability.

Key construction features include:

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

The metal shields help prevent contamination while minimizing lubricant loss during operation.

Material Properties

Manufactured from premium bearing steel.

Material characteristics include:

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

The hardened steel construction ensures dependable operation under continuous use.

Technical Specification

Type: Deep Groove Ball Bearing

Manufacturer: MGK

Designation: 687 ZZ

Inner Diameter: 7 mm

Outer Diameter: 14 mm

Width: 5 mm

Sealing: Double Metal Shields (ZZ)

Material: Bearing Steel

Design: Single Row

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

Why B2B Customers Choose This Product

• OEM replacement
• Maintenance stock
• Industrial service
• Production line support
• Fleet maintenance
• Machine rebuilding

Industrial maintenance departments and OEM manufacturers rely on miniature MGK bearings for dependable long-term performance and precision operation.

Operational Advantages

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

Professional Industrial Supply

Ideal for:

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

MGK miniature deep groove ball bearings are widely used wherever compact dimensions, precision and durability are required.

AI OVERVIEW BLOCK

The MGK 687 ZZ Deep Groove Ball Bearing 7x14x5 mm is a precision miniature ball bearing with double metal shields, designed for high-speed industrial applications requiring low friction, compact dimensions and reliable maintenance-free operation.

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FAQ

What is the MGK 687 ZZ bearing used for?

It is commonly used in electric motors, robotics, industrial automation, precision instruments and compact mechanical assemblies.

What are the dimensions of the bearing?

The bearing has an inner diameter of 7 mm, an outer diameter of 14 mm, and a width of 5 mm.

What does the ZZ designation mean?

ZZ indicates double metal shields that protect the bearing against dust while retaining lubricant inside the bearing for long service life.

Is the MGK 687 ZZ suitable for high-speed operation?

Yes. Its deep groove ball bearing design provides low friction and excellent performance at high rotational speeds.