SMF128zz
SMF Series Stainless Steel 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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SMF128zz Bearing Product Overview & Core Advantages
The SMF128zz is a metric single row deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. Featuring stainless steel construction throughout its rings, balls, and cage, this bearing offers excellent corrosion resistance. Its shielded design (zz) provides effective contamination protection while maintaining low friction operation. With its miniature 8mm bore diameter and compact 3.5mm width, this bearing delivers optimal performance in space-constrained applications where radial load capacity and smooth operation are critical requirements.
Model Code Detailed Explanation
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| SMF128 | Basic bearing designation indicating 8mm bore, 12mm OD, and 3.5mm width | Defines compact dimensional specifications |
| zz | Double shielded construction on both sides | Provides effective contamination protection while allowing moderate speed operation |
SMF128zz Bearing Structural Features & Performance Benefits
Deep Groove Geometry: The optimized raceway design enables efficient handling of radial loads while accommodating moderate axial loads in both directions, making it versatile for various mounting configurations.
Full Complement Stainless Steel: All components including rings, balls, and cage are manufactured from stainless steel, ensuring consistent thermal expansion characteristics and superior corrosion resistance for demanding environments.
Shielded Protection System: The double zz shields effectively retain lubrication while excluding contaminants, extending service life in applications where re-lubrication is impractical.
Precision Engineering: Manufactured to ABEC1 tolerance class with controlled radial internal clearance (MC3 group), this bearing delivers consistent performance and smooth operation across its specified temperature range of -30°C to 110°C.
SMF128zz Bearing Typical Application Areas
- Small precision motors and miniature DC motors requiring reliable bearing performance in compact spaces
- Medical devices and laboratory equipment where corrosion resistance and clean operation are essential
- Optical instruments and precision measuring devices demanding smooth, low-vibration rotation
- Office automation equipment including printers, scanners, and copiers with miniature drive systems
- Robotic components and small automation mechanisms requiring precise motion control
- Consumer electronics where space constraints and reliable operation are critical design factors
