SFRW188
SFRW Series Stainless Steel Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFRW188
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.73 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.25"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.5"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1562"
Shoulder diameter inner ring
0.364"
Outer Ring Dimensions
Flange outer diameter
0.547"
Flange thickness
0.023"
Ball & Washer Dimensions
Ball diameter
0.0787"
Ball quantity
8
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
310 lbf
Radial static load rating
72 lbf
Limiting speed
43.2 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:
$ 4.29
/ each
In Stock
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SFRW188 Bearing Product Overview & Core Advantages
The SFRW188 is a single row ball bearing designed for high-performance applications requiring precision and reliability. Manufactured entirely from stainless steel, it offers excellent corrosion resistance. This bearing is engineered to handle primarily radial loads and is characterized by its compact inch dimensions and an extended inner ring for secure mounting. Its ABEC1 tolerance class ensures consistent operational accuracy, making it a robust and dependable choice for various industrial settings.
SFRW188 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFRW | Indicates the specific bearing series with an extended inner ring design. |
| 188 | Specifies the bearing size and dimensions in inches. |
| Open (Seal Type) | No seals or shields, allowing for higher speeds but requiring a specific lubrication regime and a clean operating environment. |
| Extended Inner Ring | Facilitates easier and more secure axial location and locking on a shaft. |
SFRW188 Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The single row design with ABEC1 precision tolerances provides stable and accurate rotation, essential for smooth operation.
- Radial Load Capacity: Engineered to efficiently support radial dynamic loads up to 310 lbf, ensuring durability under operational stresses.
- Corrosion Resistance: All components, including rings, balls, and the cage, are made from stainless steel, making it suitable for harsh or washdown environments.
- High-Speed Capability: The open design and stainless steel construction contribute to a limiting speed of 43,200 rpm, suitable for demanding high-speed applications.
- Optimized Internal Geometry: Features 8 precision balls and an MC3 radial internal clearance, balancing operational smoothness and thermal expansion management.
SFRW188 Bearing Typical Application Areas
This bearing is ideally suited for applications where precision, corrosion resistance, and high-speed operation are critical. Key industries and equipment include:
- Medical and Dental Equipment (e.g., small handpieces, pumps)
- Precision Instruments and Optical Devices
- Food and Beverage Processing Machinery (due to stainless steel construction)
- Small Motors and High-Speed Spindles
- Robotics and Automation Components
