SFR155 2rs
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR155 2rs
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.56 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
0.15625"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.3125"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.359"
Flange thickness
0.036"
Ball & Washer Dimensions
Ball diameter
0.03941"
Ball quantity
10
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
62 lbf
Radial static load rating
24 lbf
Limiting speed
47.7 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.00008" to 0.0005"
Radial internal clearance
MC3
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Shield material
Nitrile Rubber
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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SFR155 2rs Bearing Product Overview & Core Advantages
The SFR155 2rs is a miniature sealed ball bearing designed for precision applications requiring high reliability in compact spaces. Manufactured entirely from stainless steel (rings, balls, cage) for superior corrosion resistance, this single row bearing is optimized for radial loads. Its key advantage lies in its integrated nitrile rubber seals (2RS), which effectively retain lubrication and exclude contaminants, ensuring long service life and minimal maintenance. With an ABEC1 precision class, it delivers consistent performance for a wide range of industrial and instrument applications.
SFR155 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| SFR155 | Basic bearing designation indicating the specific bearing size (0.15625" bore x 0.3125" OD x 0.125" width). |
| 2RS | Signifies the bearing is equipped with two rubber seals (RS), one on each side. This provides superior protection against contamination and loss of lubricant compared to shielded or open bearings. |
SFR155 2rs Bearing Structural Features & Performance Benefits
- Full Stainless Steel Construction: The bearing rings, balls, and cage are made from stainless steel, offering excellent resistance to rust and corrosion, making it suitable for harsh environments and washdown applications.
- Robust Sealing: The nitrile rubber (NBR) seals (2RS) provide an effective barrier against dust, moisture, and other contaminants while retaining the factory-applied grease. This enhances bearing life and reliability.
- Precision Performance: Built to ABEC1 tolerance standards, this bearing ensures smooth operation and reduced vibration, which is critical for sensitive instrumentation and small machinery.
- Optimized Internal Geometry: With 10 precision balls, the bearing provides a balanced load distribution and smooth rotational characteristics.
- Wide Temperature Range: Operates effectively from -86 to 230 °F, accommodating a broad spectrum of application environments.
SFR155 2rs Bearing Typical Application Areas
- Precision Instruments and Gauges
- Small Electric Motors and Gearboxes
- Medical and Dental Handpieces
- Office Automation Equipment (e.g., printers, scanners)
- Radio Control Models and Drones
- Food Processing and Packaging Machinery (where corrosion resistance is key)
