S689z 9X17X5mm Stainless Steel Small Bearings
Structure:ball bearing
Industries:machines
Size:9X17X5mm
Model Number:S689Z
Precision Rating:P0
Place of Origin:Zhejiang, China
Material of bearing:Stainless steel
S689Z Stainless Steel Small Bearing (9×17×5 mM)
Compact Stainless Steel Bearing for Precision Equipment and Corrosion-Resistant Applications
The S689Z stainless steel bearing is a miniature deep groove ball bearing designed for compact mechanical systems that require reliable rotational performance, corrosion resistance, and dimensional accuracy.
Manufactured from high-quality stainless steel and equipped with a metal shield on one side, the S689Z bearing is widely used in medical devices, food processing equipment, automation systems, precision instruments, small electric motors, and light-duty industrial applications.
Its compact size, low maintenance requirements, and resistance to moisture make it a practical choice for OEM manufacturers and industrial distributors seeking dependable performance in demanding environments.
Why Choose the S689Z Bearing?
Corrosion-Resistant Construction
Unlike standard chrome steel bearings, the stainless steel design provides improved resistance to humidity, water exposure, and mild chemical environments.
Compact Design for Space-Limited Equipment
With dimensions of just 9 mm × 17 mm × 5 mm, the S689Z is suitable for precision assemblies where installation space is restricted.
Smooth and Stable Rotation
Precision-ground raceways help ensure consistent rotational accuracy and reduced operating vibration.
Shielded Protection
The metal shield helps reduce contamination from dust and small particles while maintaining low rotational resistance.
Suitable for Continuous Operation
The bearing is designed to provide reliable performance in applications requiring long operating hours and minimal maintenance.
Technical Specifications
| Item | Specification |
|---|---|
| Product Model | S689Z |
| Bearing Type | Deep Groove Ball Bearing |
| Bore Diameter (d) | 9 mm |
| Outer Diameter (D) | 17 mm |
| Width (B) | 5 mm |
| Material | Stainless Steel |
| Shield Type | Single Metal Shield (Z) |
| Precision Grade | P0 / P6 / P5 Available |
| Clearance Options | C0, C3 |
| Lubrication | Factory Greased |
| Operating Temperature | -20°C to +120°C |
Bearing Dimensions
| Parameter | Value |
|---|---|
| Inner Diameter | 9 mm |
| Outer Diameter | 17 mm |
| Width | 5 mm |
| Bearing Series | 6800 Series |
| Design Type | Miniature Deep Groove Ball Bearing |
The standardized dimensions simplify replacement and integration into existing equipment designs.
Material Advantages
| Feature | Stainless Steel Bearing |
|---|---|
| Corrosion Resistance | Excellent |
| Moisture Resistance | High |
| Maintenance Requirement | Low |
| Wear Resistance | Good |
| Clean Environment Compatibility | Excellent |
| Food & Medical Equipment Suitability | Recommended |
For environments where standard steel bearings may rust or degrade, stainless steel offers a practical long-term solution.
Quality Assurance
To maintain consistent product quality, every production batch undergoes inspection procedures including:
Material composition verification
Dimensional measurement
Surface finish inspection
Radial clearance testing
Noise and vibration analysis
Lubrication verification
Visual quality inspection
These quality checks help ensure dependable performance across both small and large-volume orders.
FAQ
What does "Z" mean in the S689Z bearing?
The "Z" designation indicates that the bearing is equipped with a metal shield on one side. The shield helps protect against contamination while maintaining low rotational resistance.
Is the S689Z bearing made entirely from stainless steel?
Yes. The rings and balls are manufactured from stainless steel materials designed for corrosion-resistant applications.
Can the bearing be used in humid environments?
Yes. Stainless steel construction provides significantly better resistance to moisture and corrosion than standard chrome steel bearings.
Is the bearing pre-lubricated?
Yes. Standard S689Z bearings are factory greased and ready for installation.
What industries commonly use this bearing?
Typical industries include medical equipment manufacturing, food processing, automation, robotics, marine electronics, and laboratory instrumentation.
Can custom packaging and marking be provided?
Yes. We offer OEM packaging, laser marking, private labeling, and customized carton solutions for distributors and equipment manufacturers.
Is a double-shielded or sealed version available?
Yes. Depending on application requirements, alternative configurations such as ZZ or sealed versions may be available.
Request a Quote
Looking for a reliable supplier of S689Z stainless steel miniature bearings?
Contact our team with your specifications, annual usage, or project requirements. We can provide technical recommendations, sample support, OEM customization, and competitive pricing for wholesale and industrial applications.
Products Description
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