MF93zz
MF Series Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
MF93zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.3 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
3 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
9 mm
Outside diameter tolerance
-0.008mm to 0
Width
4 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
10.6 mm
Flange thickness
0.8 mm
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
6
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
109 lbf
Radial static load rating
34 lbf
Limiting speed
56 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.002mm to 0.013mm
Radial internal clearance
MC3
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Shield material
300 Series 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
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MF93zz Bearing Product Overview & Core Advantages
The MF93zz is a metric miniature ball bearing engineered for precision applications requiring compact design and reliable performance. As a single row deep groove ball bearing, it is optimized to primarily support radial loads. Its shielded (ZZ) construction provides effective contamination protection while maintaining low friction, making it suitable for high-speed operation. This bearing is characterized by its small bore diameter of 3 mm and lightweight design (1.3 g), offering an excellent solution for space-constrained assemblies demanding high rotational accuracy and consistent operation.
MF93zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| MF93 | Basic bearing series designation, indicating a specific miniature bearing geometry with a 3mm bore. |
| zz | Signifies that the bearing is equipped with shields on both sides. This provides protection against dust and other particulate contaminants, helping to preserve the internal lubrication and extend service life. |
MF93zz Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of a stainless steel cage, precision-ground chrome steel components, and optimized internal geometry enables a high limiting speed of 56,000 rpm.
- Robust Load Handling: The deep groove raceway and six high-quality chrome steel balls provide a substantial dynamic load rating of 109 lbf, ensuring reliable performance under demanding radial loads.
- Enhanced Contamination Resistance: The non-contact stainless steel shields (ZZ) effectively seal the bearing from contaminants without significantly increasing rotational torque, contributing to a long, maintenance-free service life.
- Precision & Stability: Manufactured to ABEC1 tolerance class with controlled radial internal clearance (MC3 group), this bearing delivers consistent running accuracy and smooth operation, which is critical for sensitive instrumentation.
MF93zz Bearing Typical Application Areas
- Small Precision Motors: Ideal for spindle support in miniature DC motors and stepper motors.
- Office Automation Equipment: Commonly used in printers, scanners, and copiers.
- Medical Devices & Instrumentation: Suitable for small pumps, analyzers, and dental handpieces.
- Robotics & RC Models: Provides reliable performance in joint assemblies, gearboxes, and small drive systems.
- Computer Peripherals: Used in cooling fans, hard disk drives, and optical drives.
