SF683
SF Series Stainless Steel Flanged Miniature Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Ball & Washer Dimensions
Performance
Materials
Environment & Compliance
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SF683 Bearing Product Overview & Core Advantages
The SF683 is a metric single row deep groove ball bearing designed for precision applications requiring compact dimensions and reliable performance. Engineered with stainless steel construction throughout its rings, balls, and cage, it offers excellent corrosion resistance. This bearing is optimized for radial load applications and features an open design, requiring lubrication for operation. Its small footprint, with a 3mm bore and 7mm outside diameter, makes it ideal for space-constrained assemblies in various precision instruments and small machinery.
SF683 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| SF683 | Basic bearing designation indicating specific bearing dimensions (3mm bore, 7mm OD, 2mm width) |
| Open | No seals or shields; requires external lubrication for optimal performance |
| ABEC1 | Standard precision tolerance class suitable for most industrial applications |
| MC3 | Normal radial internal clearance group (0.002mm to 0.013mm) |
SF683 Bearing Structural Features & Performance Benefits
Compact Design & High Precision: With minimal bearing dimensions (3×7×2mm) and ABEC1 precision, this bearing provides accurate rotation in confined spaces. The stainless steel construction ensures dimensional stability and resistance to corrosion.
Radial Load Capacity: Designed specifically for radial load applications, it features a dynamic load rating of 54 lbf and static load rating of 18 lbf. The deep groove raceway and 8-ball configuration distribute loads evenly for smooth operation.
High-Speed Capability: The stainless steel cage and optimized ball complement enable operation at limiting speeds up to 56,700 rpm, making it suitable for high-speed miniature applications.
Material Advantages: Complete stainless steel construction (rings, balls, and cage) provides excellent corrosion resistance and makes the bearing suitable for applications requiring cleanliness and chemical resistance.
SF683 Bearing Typical Application Areas
- Small precision instruments and measuring devices
- Miniature motors and fractional horsepower applications
- Medical devices and dental handpieces
- Office automation equipment and small robotics
- Optical instruments and camera mechanisms
- Electronic components and computer peripherals
