S682
600 Series Stainless Steel Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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S682 Bearing Product Overview & Core Advantages
The S682 is a miniature deep groove ball bearing engineered for applications demanding compact size, reliable performance, and high-speed operation. Constructed entirely from stainless steel, it offers excellent corrosion resistance. Its single row design and open construction make it a versatile solution for handling primarily radial loads in precision instruments and small mechanisms. This bearing is characterized by its extremely small dimensions (2mm bore, 5mm OD) and a high limiting speed of 76,500 rpm, making it ideal for high-reliability, space-constrained applications.
Model Code Breakdown
| Prefix / Suffix | Interpretation | Technical Significance |
|---|---|---|
| S | Stainless Steel | Indicates the bearing rings and balls are made from stainless steel, providing enhanced corrosion resistance. |
| 68 | Series Designation | Denotes the "68" series, which is a standard series for miniature and instrument ball bearings. |
| 2 | Bore Diameter Code | Specifies a 2 mm bore diameter. |
| (No Seals) | Open | The absence of a seal suffix confirms an open bearing, allowing for higher speeds and custom lubrication schemes. |
S682 Bearing Structural Features & Performance Benefits
- Deep Groove Geometry & Radial Load Capacity: The deep, continuous raceway grooves enable efficient handling of radial loads and moderate axial loads from both directions.
- High-Speed Performance: The open design, combined with a stainless steel cage and six precision balls, minimizes friction and allows for a very high limiting speed, essential for miniature spindles and fast-rotating components.
- Precision & Low Runout: Manufactured to ABEC1 tolerance class, this bearing ensures smooth and consistent operation, reducing vibration and noise in sensitive applications.
- Optimized Internal Clearance: The standard MC3 radial internal clearance (0.002mm to 0.013mm) is suitable for most general applications, providing a balance between preload avoidance and operational stability.
- Material Integrity: The all-stainless steel construction (rings, balls, cage) ensures dimensional stability and reliable performance across the specified temperature range of -30°C to 110°C.
S682 Bearing Typical Application Areas
The S682 miniature ball bearing is ideally suited for a wide range of compact and high-precision devices, including:
- Small Precision Motors and stepper motors
- Medical and Dental Handpieces
- Optical Encoders and instrumentation
- Small fans and blowers
- RC Models and drones
- Office automation equipment (e.g., small printers, scanners)
