MR41xzz
MR Series Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
MR41xzz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
0.14 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
1.2 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
4 mm
Outside diameter tolerance
-0.008mm to 0
Width
2.5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Ball & Washer Dimensions
Ball diameter
0.6 mm
Ball quantity
7
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
25 lbf
Radial static load rating
7 lbf
Limiting speed
105 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 14.7
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
MR41xzz Bearing Product Overview & Core Advantages
The MR41xzz is a miniature metric ball bearing engineered for applications demanding compact size and reliable performance. As a single row radial ball bearing, it is designed to primarily support radial loads with high efficiency. Its key advantages include a compact design with a 1.2 mm bore and 4 mm outside diameter, making it ideal for space-constrained assemblies. Manufactured to ABEC1 precision class, it offers consistent operation and is pre-lubricated for immediate use, ensuring a long service life in a wide temperature range from -30°C to 110°C.
MR41xzz Bearing Model Code Explained, Specifications & Naming Convention
| Suffix / Prefix | Technical Meaning |
|---|---|
| MR | Miniature Bearing Series |
| 4 | Series Code indicating specific cross-section |
| 1 | Bore Code (1.2 mm) |
| zz | Bearing is Shielded on both sides. This provides effective protection against contamination while allowing for high-speed operation. |
MR41xzz Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With an overall bearing size of just 4mm OD and a weight of 0.14g, it is perfect for miniaturized applications.
- Radial Load Capacity: The single row design with 7 balls provides a radial dynamic load rating of 25 lbf, offering reliable performance for its size.
- High-Speed Capability: The stainless steel cage and optimized internal geometry contribute to a limiting speed of 105,000 rpm, making it a capable high-speed bearing.
- Contamination Protection: The shielded design (zz) helps retain lubrication and exclude larger particulate contaminants, enhancing bearing life.
- Precision Performance: Manufactured to ABEC1 tolerance standards with a controlled radial internal clearance (MC3 / 0.002mm to 0.013mm) for smooth and quiet operation.
MR41xzz Bearing Typical Application Areas
This miniature precision bearing is widely used in:
- Small DC Motors and Stepper Motors
- Precision Instruments and Optical Encoders
- Medical Devices and Dental Handpieces
- Small Fans and Blowers
- Robotics and Miniature Drives
- Office Automation Equipment
