MF72zz
MF Series Flanged Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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MF72zz Bearing Product Overview & Core Advantages
The MF72zz is a miniature shielded ball bearing designed for applications demanding compact size and reliable performance. As a metric single row deep groove ball bearing, it excels at handling primarily radial loads and is characterized by its high precision construction (ABEC1). Its compact dimensions of 2mm bore, 7mm outside diameter, and 3mm width make it an ideal solution for space-constrained assemblies requiring smooth, low-friction operation. The inclusion of integral shields ensures contaminant protection, enhancing bearing longevity and reliability in various operating environments.
MF72zz Bearing Model Code Explained, Specifications & Naming Convention
The model number MF72zz provides specific technical information:
- MF72: Denotes the bearing series and size designation.
- zz: Indicates that the bearing is equipped with shields on both sides (2Z). These non-contact shields, made from 300 Series Stainless Steel, protect the internal components from dust and other contaminants while minimizing friction.
Key Specifications:
- System of measurement: Metric
- Seal type: Shielded
- Bore diameter: 2 mm
- Outside diameter: 7 mm
- Width: 3 mm
MF72zz Bearing Structural Features & Performance Benefits
The MF72zz's design delivers distinct performance advantages:
- High Precision & Smooth Operation: Manufactured to ABEC1 tolerance class with a radial internal clearance of MC3, this bearing ensures consistent, low-vibration performance suitable for precision instruments.
- Robust Construction: Features rings and balls made from Chrome Steel for high load capacity and durability. The stainless steel cage maintains ball alignment and contributes to stable operation.
- Contaminant Protection: The double-shielded (zz) design effectively excludes contaminants, protecting the internal components and extending service life without significantly increasing rotational torque.
- Optimized for Miniature Applications: With a compact bearing size and a low weight of just 0.6 g, it is perfectly suited for applications where space and weight are critical factors.
MF72zz Bearing Typical Application Areas
The MF72zz miniature ball bearing is widely used in:
- Small Precision Motors (e.g., drone motors, miniature DC motors)
- Office Automation Equipment (e.g., printers, scanners, copiers)
- Medical Devices and Instrumentation
- Radio-Controlled Models and Hobbyist Projects
- Precision Optical Devices and Encoders
