SFR4 2rs
SFR Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SFR4 2rs
Basic Information
Bearing type
Ball
System of measurement
Inch
Construction
Single Row
Weight
4.9 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
0.625"
Outside diameter tolerance
-0.0003" to 0"
Width
0.196"
Width tolerance
-0.005" to 0"
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
0.69"
Flange thickness
0.042"
Ball & Washer Dimensions
Ball diameter
0.0937"
Ball quantity
8
Performance
Temperature range
-86 to 230 °F
Radial dynamic load rating
255 lbf
Radial static load rating
101 lbf
Limiting speed
34.2 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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SFR4 2rs Bearing Product Overview & Core Advantages
The SFR4 2RS is a single row deep groove ball bearing designed for high-performance applications requiring reliable operation in compact spaces. Manufactured entirely from stainless steel with integrated rubber seals (2RS), this bearing offers excellent corrosion resistance and effective protection against contaminants. Its inch-series dimensions (1/4" bore) make it ideal for precision instruments and small machinery, providing robust radial load capacity and smooth operation across a wide temperature range.
SFR4 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Advantage |
|---|---|---|
| SFR4 | Standard inch-series bearing designation with 1/4" bore diameter | Ensures dimensional compatibility with inch-based designs |
| 2RS | Bearing equipped with rubber seals on both sides | Provides superior contamination protection and retains lubrication |
SFR4 2rs Bearing Structural Features & Performance Benefits
- Deep Groove Raceway Design: Optimized for handling radial loads efficiently, ensuring smooth rotation and reduced friction.
- Full Complement Stainless Steel Construction: Rings, balls, and cage are all manufactured from stainless steel, delivering excellent corrosion resistance and durability in harsh environments.
- Double Rubber Seals (2RS): Provide effective sealing against dust, moisture, and other contaminants, extending bearing service life and reducing maintenance needs. The seals also help retain lubricant.
- ABEC1 Precision Class: Manufactured to standard precision tolerances, guaranteeing consistent performance and reliable operation for a wide range of industrial applications.
- MC3 Internal Clearance: Standard radial internal clearance is suitable for most general applications, accommodating operational thermal expansion.
SFR4 2rs Bearing Typical Application Areas
- Precision Instruments: Optical encoders, medical devices, and laboratory equipment.
- Small Electric Motors: Used in fans, pumps, and small power tools.
- Food Processing & Packaging Machinery: Where corrosion resistance and cleanliness are critical.
- Office Automation Equipment: Printers, scanners, and copiers.
- Robotics & Automation: Small joints and actuators requiring reliable, compact bearings.
