SFR144
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR144
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.33 g
Tolerance class
ABEC1
Seal type
Open
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
0.0937"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.296"
Flange thickness
0.023"
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
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 Bearing Product Overview & Core Advantages
The SFR144 is a precision miniature ball bearing designed for demanding applications requiring high reliability in compact spaces. As an open, single row deep groove ball bearing, it excels at handling radial loads efficiently. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. Its compact dimensions, with a bore of just 0.125", make it an ideal solution for high-speed, small-scale mechanisms where consistent performance is critical.
SFR144 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Significance |
|---|---|
| SFR | Manufacturer's series designation for miniature flanged bearings. |
| 144 | Specific size code defining the bearing dimensions (0.125" bore, 0.25" OD). |
| Open (Seal Type) | No integral seals, allowing for higher limiting speeds and custom lubrication schemes. |
| ABEC1 | Tolerance class ensuring runout and dimensional precision for smooth operation. |
SFR144 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The open design and stainless steel cage contribute to a very high limiting speed of 60,300 rpm, making it suitable for demanding rotary applications.
- Corrosion Resistance: Constructed entirely from stainless steel (rings, balls, and cage), this bearing is ideal for environments exposed to moisture or chemicals, operating within a temperature range of -86 to 230 °F.
- Precision Engineering: Manufactured to ABEC1 tolerance standards with a controlled radial internal clearance (MC3), ensuring smooth and quiet operation with minimal vibration.
- Flanged Design: The integrated flange (0.296" OD) simplifies mounting and positioning, providing accurate axial location within a housing.
- Dynamic Performance: With a dynamic load rating of 49 lbf, it offers reliable performance under significant radial loads for its size.
SFR144 Bearing Typical Application Areas
The SFR144 is engineered for precision instruments and compact machinery, including:
- Small DC Motors and Stepper Motors
- Medical and Dental Handpieces
- Optical Encoders and Scanners
- Precision Gearboxes
- Robotic Joints and Small Actuators
- Office Automation Equipment (e.g., printers, scanners)
