SFR168 2rs
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR168 2rs
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
0.73 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
0.25"
Bore diameter tolerance
-0.0003" to 0"
Outside diameter
0.375"
Outside diameter tolerance
-0.0003" to 0"
Width
0.125"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.422"
Flange thickness
0.036"
Ball & Washer Dimensions
Ball diameter
0.03941"
Ball quantity
11
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
64 lbf
Radial static load rating
28 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
Shield material
Nitrile Rubber
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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SFR168 2rs Bearing Product Overview & Core Advantages
The SFR168 2RS is a miniature sealed ball bearing designed for precision applications requiring reliable performance in compact spaces. This single row deep groove ball bearing features integral rubber seals (2RS) providing excellent contamination protection. Manufactured entirely from stainless steel (rings, balls, and cage), it offers superior corrosion resistance and maintains dimensional stability across a wide temperature range (-86 to 230 °F). Its compact inch dimensions (1/4" bore) and ABEC1 precision class make it ideal for applications demanding smooth operation and long service life.
SFR168 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Benefit |
|---|---|---|
| SFR168 | Basic bearing designation with specific inch dimensions (0.25" bore × 0.375" OD × 0.125" width) | Standardized sizing for interchangeability |
| 2RS | Bearing equipped with double rubber seals on both sides | Superior protection against contaminants; retains lubrication effectively |
SFR168 2rs Bearing Structural Features & Performance Benefits
- Full Stainless Steel Construction: All critical components (rings, balls, cage) are stainless steel, providing excellent corrosion resistance and durability in harsh environments.
- Double Rubber Seals (2RS) effectively shield the internal bearing components from dust, moisture, and other contaminants, significantly extending bearing life and reducing maintenance needs.
- Deep Groove Raceway is optimized to handle radial loads efficiently, supporting a dynamic load rating of 64 lbf and a static load rating of 28 lbf.
- The MC3 radial internal clearance (0.00008" to 0.0005") is suited for applications where moderate operational temperatures and precise running are expected.
- Despite its miniature size, it maintains a limiting speed of 43,200 rpm, suitable for various high-speed miniature devices.
SFR168 2rs Bearing Typical Application Areas
- Small Precision Motors and stepper motors
- Medical Devices and dental handpieces
- Optical Encoders and precision instrumentation
- Office Automation Equipment (printers, scanners, copiers)
- Radio Control Models and drones
- Small Pumps and gearboxes
