SF679 2rs
SF Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
SF679 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
2.2 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
9 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
14 mm
Outside diameter tolerance
-0.008mm to 0
Width
4.5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
15.5 mm
Flange thickness
0.8 mm
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
12
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
158 lbf
Radial static load rating
76 lbf
Limiting speed
32.4 X 1000 rpm
Lubrication
Required
Radial internal clearance
0.002mm to 0.013mm
Radial internal clearance
MC3
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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SF679 2rs Bearing Product Overview & Core Advantages
The SF679 2RS is a metric miniature deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. This single row sealed bearing excels in handling radial loads while offering protection against contamination. Constructed entirely from stainless steel (rings, balls, and cage), it provides excellent corrosion resistance. Its primary advantages include a compact flanged design for simplified mounting and axial location, integrated rubber seals (2RS) for effective contamination exclusion, and suitability for a wide operating temperature range, making it an ideal choice for high-reliability, space-constrained assemblies.
SF679 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| SF679 | Basic bearing designation indicating the specific size series (9mm bore, 14mm OD). | Defines the core bearing dimensions and internal geometry. |
| 2RS | Contact rubber seals on both sides. | Provides superior protection against dust and moisture ingress, retaining lubricant effectively for extended service life. |
SF679 2rs Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & Single Row Design: Optimized for high-capacity radial load support. The geometry allows for smooth operation and low noise generation.
- Stainless Steel Construction: All critical components (rings, balls, cage) are made from stainless steel, offering excellent corrosion resistance and suitability for harsh environments or washdown applications.
- Integrated Flange (F): The flange on the outer ring simplifies bearing mounting and provides positive axial location within a housing, reducing assembly time and complexity.
- Rubber Contact Seals (2RS): These seals make contact with the inner ring, providing a highly effective barrier against contaminants. This design helps to retain lubricant, contributing to a longer service life and reduced maintenance needs.
- Precision Engineering: Manufactured to ABEC1 tolerance class, ensuring consistent and reliable performance for a wide range of precision applications.
SF679 2rs Bearing Typical Application Areas
- Small Electric Motors: Ideal for use in miniature DC motors, stepper motors, and fan motors.
- Precision Instruments & Medical Devices: Suitable for surgical handpieces, optical encoders, and laboratory equipment.
- Office Automation Equipment: Commonly found in printers, scanners, and copiers.
- Radio Control Models & Drones: Used in high-speed gearboxes and motor supports.
- Food & Beverage Equipment: Its stainless steel construction and sealed design make it appropriate for applications requiring corrosion resistance and cleanliness.
