SF685zz
SF Series Stainless Steel Flanged Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
SF685zz
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
2.15 g
Tolerance class
ABEC1
Seal type
Shielded
For load direction
Radial
Main Dimensions
Bore diameter
5 mm
Bore diameter tolerance
-0.008mm to 0
Outside diameter
11 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
12.5 mm
Flange thickness
1 mm
Ball & Washer Dimensions
Ball diameter
1.588 mm
Ball quantity
8
Performance
Temperature range
-30° to 110 °C
Radial dynamic load rating
123 lbf
Radial static load rating
46 lbf
Limiting speed
40.5 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
300 Series 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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SF685zz Bearing Product Overview & Core Advantages
The R2-5RS is a miniature single row deep groove ball bearing engineered for precision applications requiring compact dimensions and reliable performance. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its key advantages include the ability to handle radial loads efficiently and its shielded design which helps retain lubrication and exclude contaminants, enhancing service life in demanding environments.
SF685zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| R2 | Series designation for a specific range of miniature, flanged bearings. |
| 5 | Bore diameter of 5 mm. |
| RS | Indicates contact rubber seals on both sides for effective protection against contamination. |
SF685zz Bearing Structural Features & Performance Benefits
- Compact & Robust Flange Design: The integrated flange (Ø12.5mm) facilitates secure and precise mounting, simplifying assembly and improving positional stability.
- High-Quality Stainless Steel Construction: All components, including rings, balls, and cage, are made from stainless steel, providing superior corrosion resistance and durability.
- Optimized Internal Geometry: With 8 precision balls of 1.588 mm diameter, the bearing ensures smooth operation and reliable radial load capacity.
- Effective Sealing: The RS seals protect the internal components, helping to maintain lubricant integrity and extend bearing life, making it suitable for applications where contamination is a concern.
SF685zz Bearing Typical Application Areas
This bearing is ideally suited for:
- Small Precision Motors and stepper motors
- Medical and Dental hand tools
- Office Automation Equipment (e.g., printers, scanners)
- Instrumentation and precision mechanical systems
- Robotics and small gearboxes
