SFR4zz
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR4zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
4.9 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.25"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.625"
Outside diameter tolerance
-0.0003" to 0"
Width
0.196"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.69"
Flange thickness
0.042"
Ball & Washer Dimensions
Ball diameter
0.0937"
Ball quantity
8
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
255 lbf
Radial static load rating
101 lbf
Limiting speed
34.2 X 1000 rpm
Lubrication
Required
Radial internal clearance
MC3
Radial internal clearance
0.00008" to 0.0005"
Materials
Ring material
Stainless Steel
Ball material
Stainless 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:
$ 1.59
/ each
In Stock
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SFR4zz Bearing Product Overview & Core Advantages
The SFR4zz is a single row deep groove ball bearing designed for high performance in compact spaces. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its key advantage lies in its ability to handle significant radial loads while operating at high speeds, making it an ideal choice for applications demanding reliability and precision. The inclusion of stainless steel shields (zz) provides effective contamination protection, extending service life and reducing maintenance needs.
SFR4zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFR4 | Denotes the specific bearing series and size with a 1/4" bore. |
| zz | Indicates the bearing is equipped with non-contact shields on both sides. These shields protect the internal components from dust and debris while minimizing friction. |
SFR4zz Bearing Structural Features & Performance Benefits
- Robust Construction: The single row deep groove raceway and complement of 8 precision balls enable high radial load capacity and smooth operation.
- High-Speed Capability: With a limiting speed of 34,200 rpm, this bearing is engineered for high-speed applications. The stainless steel cage ensures stability and reduced wear at elevated rotational velocities.
- Corrosion Resistance: All components, including rings, balls, cage, and shields, are made from stainless steel, making it suitable for harsh environments and washdown applications.
- Precision & Reliability: Built to ABEC1 tolerance class with a controlled radial internal clearance (MC3), this bearing provides consistent performance and low noise levels.
- Shielded Protection: The zz shields effectively retain lubricant and exclude contaminants, enhancing bearing longevity and supporting maintenance-free operation in many conditions.
SFR4zz Bearing Typical Application Areas
- High-Speed Electric Motors and Spindles
- Precision Medical Devices and Dental Handpieces
- Office Automation Equipment (e.g., printers, scanners)
- Food Processing & Packaging Machinery (benefiting from stainless steel construction)
- Small Precision Instruments and Optical Devices
