SF686 2rs
SF Series Stainless Steel Flanged Miniature Bearings
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Part No.
Part No.
SF686 2rs
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
3.06 g
Tolerance class
ABEC1
Seal type
Sealed
For load direction
Radial
Main Dimensions
Bore diameter
6 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
13 mm
Outside diameter tolerance
-0.008mm to 0
Width
5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
15 mm
Flange thickness
1.1 mm
Ball & Washer Dimensions
Ball diameter
2 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
186 lbf
Radial static load rating
72 lbf
Limiting speed
36 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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SF686 2rs Bearing Product Overview & Core Advantages
The SF686 2RS is a metric miniature deep groove ball bearing engineered for precision applications requiring compact design and reliable performance. Featuring a single row construction and sealed design, it is optimized for handling radial loads while offering protection from contamination. Manufactured entirely from stainless steel (rings, balls, and cage) for enhanced corrosion resistance, this bearing is ideal for applications demanding high reliability, long service life, and operation within a wide temperature range. Its compact dimensions (6mm bore, 13mm OD, 5mm width) and integrated flange for secure mounting make it a superior choice for space-constrained assemblies.
SF686 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SF686 | The base bearing designation, indicating the specific size series and dimensions. |
| 2RS | Denotes contact rubber seals on both sides. This provides superior protection against dust, moisture, and other contaminants, helping to retain lubrication and extend bearing life. |
SF686 2rs Bearing Structural Features & Performance Benefits
- Robust Sealing: The dual 2RS contact seals, made of Nitrile Rubber, effectively shield the internal components from contaminants. This design is crucial for maintaining performance in demanding environments and contributes to the bearing's long-term reliability.
- Corrosion Resistance: Constructed entirely from stainless steel, including the rings, balls, and cage, this bearing is well-suited for applications exposed to moisture, chemicals, or washdowns, ensuring consistent performance.
- Precision & Stability: Manufactured to ABEC1 tolerance class with a controlled radial internal clearance (MC3 group), the SF686 2RS offers smooth and quiet operation, minimizing vibration and power loss.
- Simplified Mounting: The integrated flange (15mm outer diameter) allows for straightforward and secure axial location within a housing, simplifying assembly and reducing the need for complex housing designs.
- High-Speed Capability: With a limiting speed of 36,000 rpm, this bearing is capable of supporting high rotational speeds in compact machinery.
SF686 2rs Bearing Typical Application Areas
- Small Precision Motors: Ideal for spindle support in small DC motors, stepper motors, and servo motors.
- Office Automation Equipment: Commonly used in printers, scanners, and copiers.
- Medical Devices: Suitable for small pumps, dental handpieces, and diagnostic equipment where reliability and corrosion resistance are critical.
- Instrumentation and Control Systems: Used in encoders, sensors, and other precision measurement devices.
- Radio-Controlled Models & Robotics: Provides durable and precise rotation in joints, wheels, and drive systems.
