SFRW1-5
SFRW Series Stainless Steel Extended Inner Ring Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFRW1-5
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.2 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
0.3125"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1094"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Extended
Inner ring width
0.1406"
Shoulder diameter inner ring
0.173"
Outer Ring Dimensions
Flange outer diameter
0.359"
Flange thickness
0.023"
Ball & Washer Dimensions
Ball diameter
0.0625"
Ball quantity
6
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
95 lbf
Radial static load rating
29 lbf
Limiting speed
99 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.00008" to 0.0005"
Radial internal clearance
MC3
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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SFRW1-5 Bearing Product Overview & Core Advantages
The SFRW1-5 is a stainless steel miniature ball bearing designed for precision applications requiring compact dimensions and reliable performance. As a single row radial ball bearing with an extended inner ring, it excels in handling radial loads efficiently. Its construction from corrosion-resistant stainless steel across all components (rings, balls, cage) ensures excellent durability and operation within a wide temperature range of -86 to 230 °F. This bearing is an ideal choice for applications demanding miniature size, light weight (0.2 g), and consistent performance under standard precision (ABEC1) requirements.
SFRW1-5 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SFRW1-5 | Standard model designation for this specific miniature bearing series and size. |
| Extended Inner Ring | The inner ring protrudes beyond the bearing width, facilitating easier mounting and axial location. |
| Open | No integral seals or shields, allowing for higher potential speeds but requiring external protection from contaminants. |
SFRW1-5 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a bore of 0.09375" and an outside diameter of just 0.3125", this bearing is engineered for space-constrained miniature applications. Its low weight of 0.2 g minimizes inertial forces.
- Stainless Steel Construction: All critical components—rings, balls, and the stainless steel cage—are made from stainless steel, providing excellent corrosion resistance and suitability for harsh environments.
- Radial Load Capacity: The single row design with 6 precision balls effectively handles the specified radial dynamic load (95 lbf) and radial static load (29 lbf).
- High-Speed Capability: The open design and optimized geometry contribute to a limiting speed of 99,000 rpm, making it suitable for high-speed miniature spindles and rotors.
- Precision & Clearance: Manufactured to ABEC1 tolerance class with an MC3 radial internal clearance (0.00008" to 0.0005"), ensuring smooth and consistent operation.
SFRW1-5 Bearing Typical Application Areas
This bearing is commonly used in:
- Small Precision Motors and stepper motors
- Medical Devices and dental handpieces
- Optical Encoders and instrumentation
- RC Models and drones
- Office Automation Equipment (e.g., small printers, scanners)
- Various miniature machinery and precision mechanisms
