MR104ZZ Bearing – High-Precision Miniature Ball Bearing
The MR104ZZ bearing is a high-quality miniature ball bearing that delivers exceptional performance in small machinery and high-precision applications. This bearing is commonly used in industries such as electronics, robotics, automotive, and more. With its compact size, excellent durability, and smooth operation, the MR104ZZ bearing is an ideal choice for applications requiring low friction, high speed, and long service life. Whether you’re designing a precision motor or a robotic component, the MR104ZZ bearing ensures reliability and performance in demanding environments.
Key Features of MR104ZZ Bearing

- Type: Miniature ball bearing with dual metal shields (ZZ).
- Material: Available in high-quality stainless steel or carbon steel.
- Shielding: Dual metal shields (ZZ) protect against dirt, dust, and moisture, enhancing longevity.
- Size: Compact dimensions suitable for small, high-speed applications.
- Precision: Manufactured to meet high precision standards, often with an ABEC rating.
- Load Capacity: High dynamic load rating for excellent weight-bearing capability.
- Operating Temperature Range: Capable of operating in a wide temperature range, suitable for various environmental conditions.
Applications of MR104ZZ Bearing

The MR104ZZ bearing is widely used across several industries due to its compact size, precision, and durability. Some of the common applications include:
- Automotive: In electric motors, cooling fans, and other precision components.
- Robotics: Essential in robotic arms, drones, and miniature actuators for smooth motion and high-speed operation.
- Electronics: Found in hard drives, computer cooling fans, and other electronic devices that require small bearings for rotating parts.
- Medical Devices: Used in diagnostic equipment and small medical motors for quiet, reliable operation.
- Toys and Hobbies: Ideal for remote control (RC) cars, helicopters, drones, and more.
The MR104ZZ bearing’s versatility ensures that it can be customized to meet specific needs, from low-torque, high-speed environments to load-bearing applications.
Advantages of MR104ZZ Bearing

The MR104ZZ bearing is a miniature ball bearing that offers several key advantages, making it suitable for a variety of applications. Here are the primary benefits:
- Compact Size: With a 4 mm inner diameter and 10 mm outer diameter, it’s ideal for space-constrained applications.
- High-Speed Capability: Suitable for high-speed rotations, making it perfect for motors, robotics, and precision devices.
- Durability: The metal shields (ZZ) protect against dust and moisture, extending the bearing’s lifespan.
- Low Friction: Offers smooth operation with minimal energy loss, improving efficiency and reducing heat buildup.
- Corrosion Resistance: Made from stainless steel or similar materials, providing resistance to corrosion and increasing longevity in various environments.
Why Choose Us?

- Competitive Pricing: We offer the MR104ZZ bearing at an affordable price without compromising on quality, allowing you to maximize your project budget.
- Global Shipping: No matter where you are, we ship bearings worldwide. We have partnerships with reliable logistics companies to ensure fast and safe delivery.
- Expert Customer Support: Our experienced customer service team is available to answer any questions, assist with bulk orders, and guide you through the selection process.
- Manufacturing Expertise: With over 20 years in the bearing industry, we specialize in producing precision bearings that exceed industry standards.
Get a Quote / Order Now
Ready to purchase the MR104ZZ bearing or want to get more details? If you need assistance or have specific requirements, don’t hesitate to Contact Us.
FAQ (Frequently Asked Questions)
Q: What is the maximum speed the MR104ZZ bearing can handle?
A: The MR104ZZ bearing is designed to handle speeds up to 20,000 RPM, making it suitable for high-speed applications like motors and robotics.
Q: Can I use the MR104ZZ bearing in high-temperature environments?
A: The MR104ZZ bearing can operate in temperatures ranging from -30°C to +120°C. For higher temperatures, we recommend consulting with our technical team for specialized options.
Q: What materials are available for the MR104ZZ bearing?
A: The MR104ZZ bearing is typically available in stainless steel for corrosion resistance. Carbon steel is also available for cost-sensitive applications.
Q: Can I order MR104ZZ bearings in bulk?
A: Yes! We offer bulk ordering options for both small and large quantities. Contact us for more information on discounts and shipping.
Sarah W., Robotics Engineer –
We use MR104ZZ bearings in our drone assemblies. They’re reliable, cost-effective, and have proven to work well in both high-speed and high-torque environments.
Dr. Josh –
These bearings have been a game-changer for our production line. We’ve noticed a significant improvement in machine performance and uptime. Very happy with the quality and service!