SFRW3 W19
SFRW Series Stainless Steel Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFRW3 W19
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
3.24 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.1875"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.5"
Outside diameter tolerance
-0.0003" to 0"
Width
0.2273"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.2273"
Shoulder diameter inner ring
0.285"
Outer Ring Dimensions
Flange outer diameter
0.565"
Flange thickness
0.042"
Ball & Washer Dimensions
Ball diameter
0.0937"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
224 lbf
Radial static load rating
79 lbf
Limiting speed
38.7 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
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
SFRW3 W19 Bearing Product Overview & Core Advantages
The SFRW3 W19 is a single row deep groove 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 primarily handle radial loads and features an extended inner ring for simplified mounting and axial location. Its ABEC1 precision class ensures consistent operation, making it an ideal choice for compact assemblies demanding high rotational accuracy and durability.
SFRW3 W19 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFRW3 | Series designation indicating a specific design of a single row, deep groove ball bearing with an extended inner ring. |
| W19 | Variant or size code within the SFRW3 series. |
| (Implied: Open) | The bearing is an open type, meaning it has no integral seals or shields, allowing for custom lubrication schemes but requiring a clean operating environment. |
SFRW3 W19 Bearing Structural Features & Performance Benefits
- Extended Inner Ring Design: The extended inner ring facilitates easier installation and provides a positive locating surface, enhancing axial positioning accuracy in assemblies.
- All-Stainless Steel Construction: Rings, balls, and cage are manufactured from stainless steel, providing superior corrosion resistance and making the bearing suitable for applications exposed to moisture, chemicals, or washdowns. This also contributes to a wide operating temperature range of -86 to 230 °F.
- Deep Groove Raceway: The geometry of the deep groove raceway is optimized for handling radial loads efficiently. With a dynamic load rating of 224 lbf and a static load rating of 79 lbf, it offers reliable performance under significant stress.
- Precision Engineering: As an ABEC1 class bearing with controlled radial internal clearance (MC3: 0.00008" to 0.0005"), it ensures smooth, low-vibration, and low-noise operation, which is critical for sensitive equipment.
- High-Speed Capability: The design, combined with the stainless steel cage, supports a limiting speed of 38,700 rpm, making it suitable for high-velocity applications.
SFRW3 W19 Bearing Typical Application Areas
This bearing is well-suited for a variety of demanding sectors, including:
- Medical and Dental Equipment: Handpieces, small pumps, and scanners where corrosion resistance, precision, and high-speed operation are paramount.
- Food and Beverage Processing: Conveyor systems and mixers that require frequent washdowns and corrosion-resistant components.
- Precision Instruments and Optical Devices: Encoders, scanners, and measuring instruments that benefit from low vibration and high running accuracy.
- Small Motors and Gearboxes: Providing reliable support in compact, high-RPM electric motors and reduction gearboxes.
- Robotics and Automation: Joints and actuators in small-scale robotic arms requiring precise motion control.
