1. Product Overview
This NBR O-Ring Sealing Washer Kit provides a comprehensive assortment of O-rings designed for various sealing applications. Made from high-quality Nitrile Butadiene Rubber (NBR), these O-rings offer excellent resistance to oil, water, and solvents, along with good compression, anti-wear properties, and high-temperature stability. The kit is ideal for use in plumbing, automotive, and general industrial applications where reliable sealing is crucial.
2. Specifications
- Product Name: Seal Ring, O-ring
- Material: Nitrile Butadiene Rubber (NBR) - Black
- Shape: Ring Gasket
- Standard: Standard
- Cross Section (CS) / Wire Diameter: 1.0mm, 1.5mm, 2.0mm, 2.4mm, 3.1mm
- Temperature Resistance: -25°C to 100°C (-13°F to 212°F)
- Features:
- Good sealing and deformation resistance
- High temperature and low temperature resistance
- Moderate hardness (55°C)
- Excellent wear resistance
- Waterproof and insulation properties
- Resistant to oil, water, solvents, and high-pressure oil
- Good compression and elongation
2.1. Kit Configurations and Dimensions
The O-ring kits are available in various quantities and cross-section (CS) sizes. Below are examples of common kit configurations and their organizer box dimensions:
| Kit Type | Total Pieces | Cross Section (CS) Range | Organizer Box Dimensions |
|---|---|---|---|
| 36 Grids Kit | 2840pcs (example) | 1.5mm, 2.0mm, 2.4mm, 3.1mm | 28cm x 18cm |
| 24 Grids Kit | 1400pcs (example) | 1.5mm, 2.0mm, 2.4mm, 3.1mm | 20cm x 13.5cm |
| Smaller Kits | 100pcs, 200pcs, 250pcs, 260pcs, 460pcs, 520pcs, 1160pcs, 1280pcs, 2700pcs, 3200pcs | 1.0mm, 1.5mm, 2.0mm, 2.4mm, 3.1mm (specific to kit) | Varies by kit size |
3. Setup and Installation
Proper selection and installation are critical for effective O-ring performance.
3.1. Measuring O-Ring Dimensions
To ensure a proper seal, accurately measure the required O-ring dimensions:
- Outer Diameter (OD): The total diameter of the O-ring from outside edge to outside edge.
- Inner Diameter (ID): The diameter of the O-ring from inside edge to inside edge.
- Cross Section (CS) / Wire Diameter: The thickness of the O-ring material itself.
The relationship between these dimensions is: Outer Diameter = Inner Diameter + (2 * Cross Section).
3.2. Installation Steps
- Select the Correct Size: Choose an O-ring with the appropriate OD, ID, and CS for your application. The O-ring should fit snugly in the groove without being stretched excessively or compressed too much.
- Clean Surfaces: Ensure all sealing surfaces are clean, dry, and free from debris, burrs, or sharp edges that could damage the O-ring.
- Lubricate (Optional but Recommended): Apply a thin layer of compatible lubricant (e.g., silicone grease for water-based systems, or a petroleum-based lubricant for oil systems, ensuring compatibility with NBR) to the O-ring and mating surfaces. This aids installation and reduces friction, preventing damage.
- Install Carefully: Gently place the O-ring into its groove. Avoid twisting, stretching, or pinching the O-ring during installation. Ensure it sits evenly in the groove.
- Assemble Components: Carefully assemble the components, ensuring the O-ring remains in its correct position and is not dislodged or damaged.
4. Operating Instructions
NBR O-rings function by being compressed within a groove between two mating surfaces, creating a seal that prevents fluid or gas leakage. They are designed for static or dynamic applications, provided the dynamic motion is within the material's capabilities.
- Application Suitability: These NBR O-rings are suitable for a wide range of applications, including sealing in faucets, automotive systems, plumbing connections, and various machinery where resistance to oils, water, and moderate temperatures is required.
- Temperature Limits: Operate within the specified temperature range of -25°C to 100°C to maintain optimal sealing performance and O-ring longevity.
- Pressure Limits: While NBR O-rings offer high-pressure oil resistance, always ensure the O-ring's dimensions and material hardness are appropriate for the specific pressure requirements of your application to prevent extrusion or failure.
5. Maintenance
Regular maintenance helps extend the lifespan and effectiveness of your O-rings.
- Inspection: Periodically inspect installed O-rings for signs of wear, cracking, hardening, softening, swelling, or permanent deformation. Replace any O-rings showing these signs.
- Cleaning: If an O-ring needs cleaning, use a mild soap and water solution. Avoid harsh chemicals or abrasive materials that could degrade the NBR material. Rinse thoroughly and dry completely before re-installation.
- Storage: Store unused O-rings in their original organizer box in a cool, dry place away from direct sunlight, UV light, ozone, and extreme temperatures. Keep them away from electrical discharges and chemical fumes, which can accelerate degradation.
6. Troubleshooting
If you experience issues with O-ring seals, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Leakage |
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| Premature Wear/Degradation |
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7. User Tips
- Automotive Use: These O-rings are suitable for various automotive applications, including engine components, fuel systems, and hydraulic systems, due to their oil and temperature resistance.
- Lubrication is Key: Always use a compatible lubricant during installation to prevent pinching or tearing the O-ring, especially in tight spaces.
- Organize Your Kit: Keep your O-rings organized by size in the provided kit. This will save time and prevent errors when selecting the correct O-ring for a specific task.
- Double-Check Dimensions: Before installation, always double-check the Outer Diameter (OD), Inner Diameter (ID), and Cross Section (CS) against your application's requirements using a caliper for precision.
8. Warranty and Support
This NBR O-Ring Sealing Washer Kit is manufactured to high-quality standards. For any questions regarding product usage, specifications, or if you encounter any issues, please contact the seller for assistance. Please refer to the seller's policies for specific warranty information.
