SFR144zz
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR144zz
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.48 g
Tolerance class
ABEC1
Seal type
Shielded
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
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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SFR144zz Bearing Product Overview & Core Advantages
The SFR144zz is a precision miniature ball bearing designed for demanding applications requiring high reliability in compact spaces. As a single row deep groove ball bearing with inch dimensions, it excels at handling primarily radial loads. Its construction from stainless steel throughout provides excellent corrosion resistance, making it suitable for a wide operating temperature range from -86 to 230 °F. The bearing is shielded to protect against contamination and is pre-lubricated for immediate use, offering a robust solution for high-speed operation up to 60,300 rpm.
SFR144zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFR | Manufacturer series designation for miniature flanged bearings. |
| 144 | Specific size code denoting a 1/8" bore and 1/4" outer diameter. |
| zz | Indicates the bearing is fitted with shielded seals on both sides. This provides effective protection against dust and other particulates while minimizing friction. |
SFR144zz Bearing Structural Features & Performance Benefits
- Compact & Robust Flanged Design: The integrated flange (OD: 0.296") simplifies mounting and positioning, enhancing axial location and stability within the housing.
- High-Speed Capability: The combination of a stainless steel cage, seven precision balls, and optimized internal geometry enables a high limiting speed of 60,300 rpm, making it an excellent high-speed bearing.
- Corrosion Resistance: Manufactured entirely from 300 series stainless steel, including rings, balls, cage, and shields, this bearing is ideal for applications exposed to moisture or corrosive environments.
- Precision Performance: Built to ABEC1 tolerance class with a controlled radial internal clearance (MC3: 0.00008" to 0.0005"), ensuring smooth and consistent operation.
SFR144zz Bearing Typical Application Areas
This miniature flanged bearing is ideally suited for:
- Small Precision Motors (e.g., stepper motors, DC micromotors)
- Medical and Dental Handpieces
- Optical Encoders and Scanners
- Office Automation Equipment (printers, scanners, copiers)
- Instrumentation and Control Devices
- Radio Control Models and Drones
