SFR144 2rs
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR144 2rs
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.48 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
0.125"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.25"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1094"
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
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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SFR144 2rs Bearing Product Overview & Core Advantages
The SFR144 2rs is a sealed single row ball bearing designed for high precision and reliable performance in demanding applications. Manufactured entirely from stainless steel with a nitrile rubber seal, it offers excellent corrosion resistance and durability. This bearing is engineered to handle primarily radial loads and is characterized by its compact flanged design, which facilitates easy mounting and precise axial location. Its ABEC1 precision class and consistent performance make it an ideal choice for applications requiring smooth operation and long service life.
SFR144 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFR | Series designation for a specific line of flanged miniature ball bearings. |
| 144 | Defines the core bearing dimensions: 0.125" bore, 0.25" outside diameter, 0.1094" width. |
| 2RS | Indicates the bearing is fitted with two rubber seals (RS), one on each side, providing superior protection against contaminants and moisture retention. |
SFR144 2rs Bearing Structural Features & Performance Benefits
- Flanged Construction & High Rigidity: The integral flange provides a positive locating surface, simplifying installation and enhancing system stability and rigidity.
- Optimized Load Capacity: The single row design with 7 precision balls is optimized for efficient radial load support, with a dynamic load rating of 49 lbf.
- Sealed for Life & Corrosion Resistance: The 2RS contact seals, made of nitrile rubber, effectively exclude contaminants and retain lubricant. Combined with all-stainless steel construction, this ensures reliable operation in harsh or washdown environments and offers a maintenance-free solution.
- Precision & Smooth Operation: Built to ABEC1 tolerance standards with a controlled MC3 radial internal clearance, this bearing delivers low noise and vibration for smooth running.
- Broad Temperature Range: Suitable for a wide operating temperature range from -86 to 230 °F.
SFR144 2rs Bearing Typical Application Areas
- Small Precision Motors and stepper motors
- Medical Devices and laboratory equipment
- Office Automation equipment (e.g., printers, scanners)
- Instrumentation and precision gearboxes
- Robotics and small articulated arms
- Radio-Controlled (RC) Models and drones
