SFRW133
SFRW Series Stainless Steel Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFRW133
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.21 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.09375"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.1875"
Outside diameter tolerance
-0.0003" to 0"
Width
0.0625"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.0937"
Shoulder diameter inner ring
0.118"
Outer Ring Dimensions
Flange outer diameter
0.234"
Flange thickness
0.018"
Ball & Washer Dimensions
Ball diameter
0.0236"
Ball quantity
10
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
25 lbf
Radial static load rating
9 lbf
Limiting speed
72 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:
$ 4.88
/ each
In Stock
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SFRW133 Bearing Product Overview & Core Advantages
The SFRW133 is a single row deep groove ball bearing designed for high-performance applications requiring compact design and reliable operation. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. This bearing is engineered to handle primarily radial loads and is characterized by its extended inner ring with a flange, facilitating secure mounting and positioning. Its ABEC1 precision class and open design make it a versatile and cost-effective solution for various industrial and precision mechanisms.
SFRW133 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| SFRW | Flanged Radial Bearing Series | Indicates a single row bearing with an extended inner ring and an integral flange on the outer ring for axial location. |
| 133 | Size Designation | Specifies the bearing dimensions: 0.09375" bore, 0.1875" outer diameter, and 0.0625" width. |
| (Implied: Open) | No Seals / Shields | The bearing is supplied without integral seals, allowing for higher limiting speeds and customization of lubrication. |
SFRW133 Bearing Structural Features & Performance Benefits
- Flanged Design & Extended Inner Ring: The integral flange on the outer diameter simplifies housing design and provides positive axial location, reducing assembly time and cost. The extended inner ring offers a larger contact surface for secure shaft mounting.
- All-Stainless Steel Construction: The bearing rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and making it suitable for harsh environments, including those requiring washdown or exposure to certain chemicals.
- Optimized Internal Geometry: The deep groove raceway and complement of 10 precision balls enable efficient handling of radial loads, with a dynamic load rating of 25 lbf.
- High-Speed Capability: The open, non-contact stainless steel cage and optimized internal design contribute to a high limiting speed of 72,000 rpm, ideal for high-speed applications.
- Precision & Clearance: Built to ABEC1 tolerance class with an MC3 radial internal clearance, this bearing ensures smooth, low-vibration operation, which is critical for precision instruments.
SFRW133 Bearing Typical Application Areas
This bearing is ideally suited for applications demanding compactness, corrosion resistance, and high-speed performance. Key sectors include:
- Precision Instruments: Optical encoders, small medical devices, and laboratory equipment.
- Small Motors and Gearboxes: Servo motors, stepper motors, and miniature drive systems.
- Office Automation Equipment: Printers, scanners, and copiers.
- Food and Beverage Processing: Equipment where corrosion resistance and washdown capability are paramount.
