MR52ZZ Bearing Detailed Introduction

MR52ZZ Bearing Detailed Introduction

The MR52ZZ bearing is a precision-engineered miniature deep groove ball bearing designed for applications requiring compact dimensions, high efficiency, and reliable performance. Below is a detailed overview of its specifications, features, and applications:

Specifications

• Type: Deep groove ball bearing
• Model: MR52ZZ
• Material: High-quality 52100 chrome steel or stainless steel (optional)
• Inner Diameter (ID): 2 mm
• Outer Diameter (OD): 5 mm
• Width (B): 2.5 mm
• Shield Type: Double shielded (ZZ) for dust and debris protection
• Dynamic Load Rating: ~98 N (varies based on manufacturer)
• Static Load Rating: ~38 N (varies based on manufacturer)
• Maximum Speed: Up to 80,000 rpm (depends on lubrication and material)
• Weight: ~0.22 g

Features

1. Compact Design
   • Small dimensions make it suitable for miniature and high-precision applications.
2. Double Shield Protection (ZZ)
   • Equipped with metal shields on both sides to protect against dust, debris, and light contaminants.
   • Maintains internal lubrication, reducing the need for maintenance.
3. High Precision and Low Noise
   • Manufactured to strict tolerances, ensuring smooth and quiet operation even at high speeds.
4. Corrosion Resistance (Optional Stainless Steel)
   • Available in stainless steel for enhanced resistance to moisture and chemical exposure.
5. Durable Material
   • Made from 52100 chrome steel for excellent hardness and wear resistance.
6. High Speed Capability
   • Designed for applications requiring high rotational speeds.
7. Pre-Lubricated
   • Factory-lubricated with high-quality grease, ensuring optimal performance and extended lifespan.

Applications

1. Miniature Motors
   • Used in small DC motors, stepper motors, and servo motors due to its compact size and low friction.
2. Precision Instruments
   • Essential in measuring devices, optical instruments, and gyroscopes where accuracy and stability are critical.
3. Hobby and Model Engineering
   • Commonly found in RC cars, drones, and model airplanes for smooth and efficient performance.
4. Medical Devices
   • Suitable for dental drills, surgical tools, and other medical instruments requiring high precision and hygiene.
5. Office Equipment
   • Found in printers, scanners, and small actuators, contributing to quiet and efficient operation.
6. Robotics and Automation
   • Ideal for robotic arms and automated machinery requiring compact yet reliable components.

Advantages of MR52ZZ Bearing

1. Enhanced Durability
   • Designed for long-term use, even in demanding applications.
2. Maintenance-Free Operation
   • The sealed design and pre-lubrication reduce maintenance frequency.
3. Versatility
   • Suitable for a wide range of industries and applications.
4. Cost-Effective
   • Combines high performance with an affordable price point.

Technical Considerations

1. Load Capacity
   • Best suited for applications with light to moderate loads. Excessive axial or radial loads may reduce lifespan.
2. Speed Limit
   • While capable of high speeds, exceeding recommended rpm can lead to overheating and wear.
3. Temperature Range
   • Operates effectively between -20°C and 120°C, depending on lubrication type.
4. Installation Tips
   • Ensure clean handling to avoid contamination and use precise tools to prevent misalignment during installation.

Conclusion

The MR52ZZ bearing is a small but robust solution for applications demanding precision, reliability, and compactness. Its double-shielded design and high-quality materials make it a preferred choice across industries, from robotics to medical devices. Whether you need bearings for high-speed motors or delicate instruments, the MR52ZZ offers performance you can depend on.