SFR2
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR2
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
1.2 g
Tolerance class
ABEC1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
0.125"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.375"
Outside diameter tolerance
-0.0003" to 0"
Width
0.1562"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.44"
Flange thickness
0.03"
Ball & Washer Dimensions
Ball diameter
0.06252"
Ball quantity
7
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
109 lbf
Radial static load rating
35 lbf
Limiting speed
50.4 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:
$ 1.59
/ each
In Stock
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SFR2 Bearing Product Overview & Core Advantages
The SFR2 is a stainless steel miniature ball bearing designed for precision applications requiring reliable performance in compact spaces. As a single row radial ball bearing with an open design, it excels in handling radial loads efficiently. Its construction from corrosion-resistant stainless steel throughout (rings, balls, and cage) ensures excellent durability and operation within a wide temperature range from -86 to 230 °F. This bearing is an ideal solution for applications demanding ABEC1 precision, compact dimensions, and consistent performance.
SFR2 Bearing Model Code Explained, Specifications & Naming Convention
| Code/Feature | Technical Significance |
|---|---|
| SFR2 | Denotes the specific bearing series, a flanged miniature ball bearing with standard dimensions. |
| Open (Seal Type) | Indicates no integral seals or shields, allowing for high-speed operation and customizable lubrication. Requires a clean operating environment or external sealing. |
| ABEC1 | Specifies the tolerance class, defining the precision level for runout and dimensional accuracy. |
| MC3 | Defines the radial internal clearance group, optimized for general operating conditions. |
SFR2 Bearing Structural Features & Performance Benefits
- Flanged Design & Compact Size: The integral flange (0.44" outer diameter) simplifies mounting and positioning, enhancing axial location accuracy within assemblies. With a compact bearing size of 0.125" bore and 0.375" outside diameter, it is perfect for space-constrained applications.
- High-Speed Capability: The open design and stainless steel cage contribute to a high limiting speed of 50,400 rpm, making it suitable for high-RPM mechanisms.
- Corrosion Resistance & Material Integrity: Manufactured entirely from stainless steel, the bearing offers superior resistance to rust and corrosion, ensuring long service life in harsh or washdown environments.
- Precision Performance: The ABEC1 precision class and controlled radial internal clearance ensure smooth, low-vibration, and low-noise operation, critical for sensitive equipment.
SFR2 Bearing Typical Application Areas
This miniature flanged bearing is widely used in:
- Small Precision Motors and Stepper Motors
- Medical Devices and Dental Handpieces
- Optical Encoders and Scanning Equipment
- Precision Instruments and Laboratory Equipment
- RC Models, Drones, and Small Gearboxes
- Office Automation Equipment and Small Fans
