SFR1-4zz
SFR Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
SFR1-4zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.61 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
0.07813"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.25"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1406"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.296"
Flange thickness
0.031"
Ball & Washer Dimensions
Ball diameter
0.03941"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
49 lbf
Radial static load rating
15 lbf
Limiting speed
60.3 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:
$ 2.65
/ each
In Stock
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SFR1-4zz Bearing Product Overview & Core Advantages
The SFR1-4zz is a precision miniature ball bearing designed for demanding applications requiring high reliability in compact spaces. As a single row radial ball bearing with stainless steel construction, it delivers excellent corrosion resistance and consistent performance. Its shielded design provides effective contamination protection while maintaining low friction, making it suitable for high-speed operation. This bearing is engineered to handle primarily radial loads and is ideal for applications where precision, durability, and compactness are critical.
SFR1-4zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFR1-4 | Basic bearing designation with specific inch dimension series |
| zz | Double shielded (non-contact) on both sides for superior contamination protection |
SFR1-4zz Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a bore diameter of 0.07813" and weight of only 0.61g, this bearing offers exceptional space-saving advantages while maintaining structural integrity.
- Corrosion Resistance: Constructed entirely from stainless steel (rings, balls, cage, and shields) ensuring reliable performance in harsh environments and meeting ROHS/REACH compliance.
- High-Speed Capability: Features a limiting speed of 60,300 rpm supported by optimized geometry and stainless steel cage for stable operation at elevated rotational speeds.
- Precision Performance: Manufactured to ABEC1 tolerance class with controlled radial internal clearance (MC3: 0.00008" to 0.0005") ensuring smooth, precise rotation and reduced vibration.
- Effective Sealing: The double shielded (zz) configuration provides excellent protection against contaminants while minimizing friction for efficient operation.
SFR1-4zz Bearing Typical Application Areas
- Precision Instruments: Optical encoders, medical devices, laboratory equipment
- Small Motors & Drives: Micro motors, DC brushless motors, servo mechanisms
- Office Automation: Printers, scanners, copiers, and fax machines
- Electronic Equipment: Computer cooling fans, robotics, miniature gearboxes
- Aerospace & Defense: Guidance systems, instrumentation, control mechanisms
