S686
600 Series Stainless Steel Miniature Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
S686
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.87 g
Tolerance class
ABEC1
Seal type
Open
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
3.5 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
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
MC3
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Stainless Steel
Ball material
Stainless Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 1.35
/ each
In Stock
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S686 Bearing Product Overview & Core Advantages
The S686 is a metric single row deep groove ball bearing engineered for compact radial load applications requiring high precision and reliability. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its open design provides versatility for various lubrication schemes, while its ABEC1 precision class ensures consistent performance in demanding environments. This bearing is ideal for applications where space is limited but performance cannot be compromised.
S686 Bearing Model Code Explained, Specifications & Naming Convention
| Code Element | Technical Significance |
|---|---|
| S686 | Standard bearing designation indicating the core dimensions: 6mm bore, 13mm OD, 3.5mm width. |
| Open (Seal Type) | No integral seals or shields. Allows for custom lubrication and high-speed operation, but requires a clean environment or external sealing. |
| MC3 | Specifies the radial internal clearance group (0.002mm to 0.013mm), optimized for general operating conditions. |
| ABEC1 | Defines the tolerance class, ensuring dimensional accuracy and running precision for reliable performance. |
S686 Bearing Structural Features & Performance Benefits
- Compact & Lightweight Design: With a bearing width of just 3.5mm and a weight of 1.87g, it is engineered for applications with severe space and weight constraints.
- High-Speed Capability: The limiting speed of 36,000 rpm is supported by the stainless steel cage and optimized internal geometry, making it a capable high-speed bearing.
- Corrosion Resistance: All components, including rings, balls, and cage, are manufactured from stainless steel, providing superior protection in harsh or washdown environments.
- Radial Load Capacity: The single row deep groove construction is primarily designed to handle radial loads efficiently, with a dynamic load rating of 186 lbf.
- Standard Internal Clearance: The MC3 radial clearance provides an optimal balance for a wide range of operating temperatures and fits, minimizing noise and vibration.
S686 Bearing Typical Application Areas
- Small Precision Motors: Ideal for spindle support in miniature DC motors and stepper motors.
- Medical and Dental Devices: Used in handheld surgical tools, dental handpieces, and diagnostic equipment due to its compact bearing size and corrosion resistance.
- Office Automation Equipment: Critical components in printers, scanners, and small fans.
- Instrumentation and Control Systems: Provides precise rotational support in encoders, sensors, and guidance systems.
- Radio-Controlled Models and Drones: Used in high-speed motor and gearbox assemblies.
