S685
600 Series Stainless Steel Miniature Bearings
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Part No.
Part No.
S685
Basic Information
Bearing type
Ball
System of measurement
Metric
Construction
Single Row
Weight
1.16 g
Tolerance class
ABEC1
Seal type
Open
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
3 mm
Width tolerance
-0.12mm to 0
Inner Ring Dimensions
Inner ring type
Standard
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
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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S685 Bearing Product Overview & Core Advantages
The S685 is a metric single row deep groove ball bearing engineered for high performance in compact, precision applications. Constructed entirely from stainless steel, it offers excellent corrosion resistance. This bearing is designed to handle primarily radial loads and is characterized by its open design, which allows for high-speed operation and customizable lubrication. Its small bore diameter of 5mm and lightweight construction at just 1.16g make it ideal for applications where space and weight are critical constraints.
S685 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Stainless Steel construction for enhanced corrosion resistance. |
| 6 | Denotes the series, indicating a specific cross-section and load capacity. |
| 85 | Indicates a bore diameter of 5 mm. |
| (No Suffix) | The absence of a suffix indicates an open (unsealed) bearing, requiring external lubrication. |
S685 Bearing Structural Features & Performance Benefits
- All-Stainless-Steel Construction: The rings, balls, and cage are made from stainless steel, providing superior corrosion resistance and making the bearing suitable for harsh environments and clean applications.
- High-Speed Capability: The open design and stainless steel cage minimize friction and allow for a high limiting speed of 40,500 rpm, suitable for demanding high-velocity applications.
- Precision Performance: Manufactured to ABEC1 tolerance class, this bearing ensures consistent running accuracy and low vibration for smooth operation.
- Optimized Internal Geometry: The deep groove raceway and 8 precision balls of 1.588mm diameter are designed for efficient radial load carrying capacity.
- Standard Internal Clearance (MC3): Provides an optimal fit for most general applications, balancing operational temperature and running precision.
S685 Bearing Typical Application Areas
- Small Precision Electric Motors and Spindles
- Medical and Dental Hand Tools
- Optical Encoders and Precision Instruments
- Office Automation Equipment (e.g., small printers, scanners)
- Radio-Controlled Models and Drones
- Low-Torque, High-Speed Mechanisms
