MF126
MF Series Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
MF126
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.44 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
12 mm
Outside diameter tolerance
-0.008mm to 0
Width
3 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
13.2 mm
Flange thickness
0.6 mm
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
137 lbf
Radial static load rating
53 lbf
Limiting speed
43 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:
$ 1.32
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
MF126 Bearing Product Overview & Core Advantages
The MF126 is a metric single row deep groove ball bearing engineered for precision and reliability in compact applications. Designed primarily to accommodate radial loads, this open-type bearing offers excellent performance in high-speed scenarios, with a limiting speed of 43,000 rpm. Manufactured to ABEC1 tolerance class, it ensures consistent operation and is constructed entirely from high-grade chrome steel and a stainless steel cage for enhanced durability. Its miniature dimensions (6mm bore, 12mm OD, 3mm width) and lightweight design (1.44g) make it ideal for space-constrained, high-precision assemblies requiring dependable rotational motion.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| MF126 | Basic bearing designation, indicating a specific series of miniature deep groove ball bearings. |
| Open (No Seal Suffix) | No integral seals or shields. This allows for higher speeds and requires external lubrication and protection from contaminants. |
| Tolerance Class: ABEC1 | Specifies standard precision level for dimensional accuracy and running performance. |
| Internal Clearance: MC3 | Indicates a "C3" radial internal clearance group (0.002mm to 0.013mm), greater than normal, suitable for applications with thermal expansion or interference fits. |
MF126 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of an open design and a lightweight stainless steel cage minimizes friction and allows for a high limiting speed of 43,000 rpm, making it a capable high-speed bearing for miniature applications.
- Robust Load Capacity: The deep groove raceway and construction from high-carbon chrome steel enable it to handle significant radial dynamic loads (137 lbf) and static loads (53 lbf) for its size.
- Precision Engineering: Manufactured to ABEC1 standards, this bearing ensures smooth, low-vibration, and low-noise operation, which is critical for sensitive equipment.
- Versatile Operating Range: With a specified temperature range from -30°C to 110°C, it is suitable for a wide array of environmental conditions.
- Compliance & Material Integrity: The bearing is ROHS and REACH compliant, and the use of a stainless steel cage provides excellent corrosion resistance for the cage component.
MF126 Bearing Typical Application Areas
This miniature deep groove ball bearing is ideally suited for applications where compact size, light weight, and reliable high-speed operation are paramount. Key industries and equipment include:
- Small Precision Motors: Used in stepper motors, DC micromotors, and spindle motors for consumer electronics.
- Medical Devices: Found in dental handpieces, small pumps, and diagnostic equipment assemblies.
- Office Automation: Critical component in printers, scanners, and copiers.
- Instrumentation and Gauges: Provides smooth rotation in precision measuring devices and small instrumentation.
- Robotics and Automation: Used in miniature joints, guides, and small actuator systems.
