S689 2rs
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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S689 2rs Bearing Product Overview & Core Advantages
The S689 2RS is a metric single row deep groove ball bearing designed for high-performance applications requiring reliable operation. This sealed bearing excels in handling radial loads and offers protection against contamination. Constructed entirely from stainless steel (rings, balls, and cage), it provides excellent corrosion resistance. Its compact design, with a 9 mm bore and 17 mm outside diameter, makes it ideal for space-constrained, high-precision assemblies where reliability is critical.
S689 2rs Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| S | Stainless Steel construction |
| 689 | Bearing size series designation (9mm bore, 17mm OD, 5mm width) |
| 2RS | Bearing fitted with contact seals on both sides. The "RS" denotes a Nitrile Rubber seal, providing superior protection against dust and moisture ingress compared to shielded variants. |
S689 2rs Bearing Structural Features & Performance Benefits
Robust Sealed Design: The 2RS double-sided contact seals effectively prevent the entry of contaminants and retain lubricant, significantly extending service life and enabling operation in demanding environments. This contributes to its low-maintenance characteristic.
High-Speed Capability: With a limiting speed of 32,400 rpm, this bearing is engineered for high-speed applications. The precision stainless steel cage ensures stable operation at these elevated rotational speeds.
Corrosion Resistance & Durability: The all-stainless-steel construction (rings, balls, and cage) provides excellent resistance to corrosion, making it suitable for applications exposed to moisture, chemicals, or washdowns.
Precision Performance: Manufactured to ABEC1 tolerance class, it offers reliable running accuracy for a wide range of industrial applications.
S689 2rs Bearing Typical Application Areas
- Precision Instruments and medical devices
- Small Electric Motors and miniature gearboxes
- Food processing and packaging machinery (benefiting from stainless steel construction)
- Office automation equipment (e.g., printers, scanners)
- Robotics and miniature automation systems
