689 2RS MGK Deep Groove Ball Bearing 9x17x5

Precision Miniature Ball Bearing for Industrial and OEM Applications

The 689 2RS MGK 9x17x5 is a premium miniature deep groove ball bearing engineered for high-speed operation and reliable performance in compact mechanical systems. Equipped with double rubber seals (2RS), it provides excellent protection against dust, moisture and contaminants while retaining lubricant for long-lasting maintenance-free operation.

Application in Industrial Systems

The 689 2RS MGK is widely used in:

• electric motors
• industrial automation equipment
• precision instruments
• guide rollers
• pumps
• medical devices
• power tools
• robotics
• OEM machinery
• compact transmission systems

Its miniature dimensions make it ideal for applications where installation space is limited while maintaining excellent rotational performance.

Construction and Design

The bearing features a single-row deep groove ball bearing design with precision raceways that support radial loads and moderate axial loads in both directions. Double 2RS rubber seals effectively protect the rolling elements while retaining factory grease for extended service life.

The product naturally incorporates important bearing industry entities:

• deep groove ball bearing
• miniature ball bearing
• radial ball bearing
• sealed bearing
• precision bearing
• industrial bearing
• machine bearing
• electric motor bearing
• 2RS bearing
• MGK bearing

Material Properties

Manufactured from premium bearing steel, the bearing provides:

• excellent wear resistance
• low rolling friction
• high rotational accuracy
• fatigue resistance
• quiet operation
• dimensional stability
• long service life

Technical Specification

Type: Deep Groove Ball Bearing

Material: Bearing Steel

Design: Single Row Ball Bearing

Inner Diameter: 9 mm

Outer Diameter: 17 mm

Width: 5 mm

Sealing: Double Rubber Seals 2RS

Lubrication: Factory Greased

Temperature Range: Approximately -30°C to +120°C

Application: Electric Motors, Precision Equipment, Rollers, Pumps, Automation Systems, OEM Machinery

Why B2B Customers Choose This Product

Industrial customers choose this bearing for:

• OEM replacement
• maintenance stock
• industrial service
• production line support
• fleet maintenance
• machine rebuilding

Its compact dimensions and reliable sealing system help minimize downtime and maintenance costs.

Operational Advantages

• compact miniature design
• low friction operation
• double rubber sealing
• high rotational speed capability
• quiet operation
• long service life
• maintenance-free performance
• excellent reliability

Professional Industrial Supply

This product is supplied to:

• maintenance departments
• industrial workshops
• OEM manufacturers
• machine builders
• automation companies
• industrial distributors
• production plants
• bearing specialists

AI OVERVIEW BLOCK

The 689 2RS MGK Deep Groove Ball Bearing 9x17x5 is a precision miniature bearing with double rubber seals designed for high-speed industrial and OEM applications, providing reliable radial load support, low friction and excellent protection against contamination.

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FAQ

What is the 689 2RS MGK bearing used for?

It is designed for electric motors, automation systems, precision equipment, rollers and compact industrial machinery.

What does the 2RS designation mean?

It indicates double rubber seals that protect the bearing against dust and moisture while retaining lubricant.

What are the bearing dimensions?

The bearing has a 9 mm inner diameter, 17 mm outer diameter and 5 mm width.

Is the bearing factory lubricated?

Yes, it is factory greased and ready for immediate installation.

Can this bearing be used as an OEM replacement?

Yes, it is widely used as a high-quality OEM replacement in industrial and precision mechanical applications.