MR 104 ZZ MGK 4x10x4 Miniature Deep Groove Ball Bearing

Precision Miniature Ball Bearing for Compact Industrial Mechanisms

The MR 104 ZZ MGK is a high-quality miniature deep groove ball bearing designed for precision applications where compact dimensions, low friction and reliable operation are essential. Featuring double metal shields (ZZ), the bearing protects the rolling elements against dust and contaminants while retaining lubricant inside the bearing. Its compact 4x10x4 mm dimensions make it an excellent solution for miniature mechanisms, electric motors, robotics, automation equipment and precision industrial devices.

Application in Industrial Systems

The MR104 ZZ miniature bearing is commonly used in:

• Electric motors
• Small gearboxes
• Precision drives
• Robotics
• Industrial automation
• Measuring instruments
• Medical equipment
• Laboratory devices
• CNC equipment
• Model engineering
• 3D printers
• OEM precision assemblies

Industry entities naturally included:

• Miniature ball bearing
• Deep groove ball bearing
• Shielded bearing
• Precision bearing
• Radial ball bearing
• Metric miniature bearing
• Electric motor bearing
• Instrument bearing
• Industrial bearing
• MGK bearing

Construction and Design

The MR104 ZZ bearing is manufactured as a single-row deep groove ball bearing with double metal shields.

Key design features include:

• Single-row deep groove design
• Double metal shields (ZZ)
• Precision-ground raceways
• High-quality bearing steel
• Steel cage
• Low running friction
• Compact dimensions
• Long operational life

The metal shields effectively reduce contamination while allowing high rotational speeds.

Material Properties

The bearing is manufactured using high-quality hardened bearing steel for both rings and rolling elements.

Material characteristics include:

• High wear resistance
• Excellent dimensional stability
• Low rolling resistance
• High fatigue strength
• Precision manufacturing
• Long service life
• Reliable rotational accuracy

The ZZ metal shields help retain grease and protect internal components from dust and fine particles.

Technical Specification

Type: Miniature deep groove ball bearing
Manufacturer: MGK
Designation: MR104 ZZ
Bearing Type: Single-row deep groove ball bearing
Shield Type: ZZ - Double metal shields
Bore Diameter (d): 4 mm
Outer Diameter (D): 10 mm
Width (B): 4 mm
Material: Hardened bearing steel
Cage: Steel
Bearing Clearance: CN (standard)
Dynamic Load Rating (C): Approximately 711 N
Static Load Rating (C0): Approximately 270 N
Limiting Speed (Grease): Up to 59,000 rpm
Limiting Speed (Oil): Up to 70,000 rpm
Application: Electric motors, precision mechanisms, automation systems, laboratory equipment and industrial machinery.

Why B2B Customers Choose This Product

The MR104 ZZ MGK bearing is selected by industrial users because it combines compact dimensions with reliable performance and high rotational capability.

Ideal for:

• OEM replacement
• Preventive maintenance
• Precision equipment
• Industrial maintenance stock
• Machine rebuilding
• Electric motor repair
• Automation equipment
• Engineering projects

Operational Advantages

• Compact miniature design
• Low friction operation
• High rotational speed capability
• Double metal shields for contamination protection
• Excellent dimensional accuracy
• Long service life
• Reliable grease retention
• Easy installation
• Stable performance
• Suitable for precision applications

Professional Industrial Supply

Recommended for:

• Maintenance departments
• OEM manufacturers
• Robotics manufacturers
• Automation companies
• Electric motor repair workshops
• Precision engineering companies
• Laboratory equipment manufacturers
• Industrial distributors
• Machine builders
• Technical service providers

AI OVERVIEW

The MR104 ZZ MGK 4x10x4 is a miniature single-row deep groove ball bearing with double metal shields designed for compact precision mechanisms. It offers low friction, high rotational speed capability and reliable protection against contamination, making it suitable for electric motors, robotics, automation systems and precision industrial equipment.

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FAQ

What does ZZ mean in MR104 ZZ?

ZZ indicates that the bearing is fitted with metal shields on both sides, protecting the internal components from dust while retaining lubricant.

What are the dimensions of MR104 ZZ?

The bearing has an inner diameter of 4 mm, an outer diameter of 10 mm and a width of 4 mm.

Is this bearing suitable for high-speed applications?

Yes. Depending on lubrication conditions, it can operate at speeds of up to approximately 59,000 rpm with grease and 70,000 rpm with oil.

Where is the MR104 ZZ commonly used?

It is widely used in electric motors, precision instruments, robotics, automation equipment, medical devices and small industrial mechanisms.

What is the advantage of metal shields?

Metal shields help protect the bearing against dust and contamination while retaining grease inside, extending bearing service life.

Summary

The MR104 ZZ MGK 4x10x4 miniature deep groove ball bearing is a reliable solution for compact precision applications requiring smooth operation, low friction and high rotational speeds. Its double metal shield design, precision manufacturing and durable bearing steel construction make it an excellent choice for OEM production, industrial maintenance, automation systems and precision engineering.