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Automotive & transport
COMBI SF8 12018616B Wheel Hub Oil Seal China Factory Suppliers
High-performance COMBI SF8 12018616B wheel hub oil seals from a leading China factory. Our professional suppliers provide integrated designs combining lip and mechanical seal advantages to prevent leakage and contamination, extending machinery lifespan.
SupplierHebei Hankai Machinery Equipment Co., Ltd.www.hkaiseal.com
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About this product
Product information from the supplier.
The COMBI SF8 506518 NBR (Part No. 12018616B) is a high-performance wheel hub oil seal specifically engineered for agricultural machinery and tractors. Designed to provide an airtight and leak-proof barrier, this seal combines premium nitrile rubber (NBR) with a reinforced metal ring to ensure structural stability and superior sealing efficiency under rigorous operating conditions.
Engineered for durability and precision, this hub oil seal effectively prevents lubricants from leaking while blocking external contaminants like dust, mud, and water from entering the wheel hub. Whether used for standard replacements or custom industrial applications, the COMBI series ensures reduced friction and extended component lifespan for heavy-duty axle systems.
Detailed Parameters
| Product Name | Wheel Hub Oil Seal | Material | Rubber (with Metal Ring) |
|---|---|---|---|
| Application | Tractor's Wheel / Agricultural Machinery | Dimensions | 506518 mm |
| OEM Number | 12018616B | Rubber Type | NBR (Nitrile Rubber) |
| Feature | High Attrition Resistance | Origin | Hebei, China |
| Standard | Customized / Standard Available | MOQ | 20 pcs |
Key Advantages
Wear Resistance
Engineered with high-grade NBR to resist abrasion and friction in harsh agricultural environments.
Extended Lifespan
The integrated metal ring provides reinforced stability, significantly reducing seal deformation over time.
Precision Fit
Strict adherence to OEM dimensions 506518 ensures a seamless installation and leak-free performance.
Oil Tightness
Superior oil-retention capabilities prevent lubricant loss, reducing maintenance frequency for hub bearings.
Contamination Control
Highly effective at excluding dust and moisture, protecting the internal axle components from premature wear.
Customizable Specs
Beyond standard sizes, we offer customized rubber compositions and dimensions to meet specific needs.
Product Gallery
Management Platforms
Inventory Control
Real-time tracking of all seal sizes, from COMBI to RWDR series, ensuring zero lead-time delays.
Quality Assurance
Rigorous inspection protocols for rubber elasticity and metal ring concentricity before shipment.
OEM Integration
Fast cross-referencing system using OEM numbers like 12018616B for accurate part matching.
Supply Chain Logic
Optimized logistics from Hebei to global markets, ensuring safe packaging for rubber products.
Customization Desk
Dedicated platform for non-standard size requests and specialized material (PTFE/HNBR) orders.
Technical Support
Expert guidance on seal installation and material selection based on operational temperature.
Investment Return Comparison
| Feature | Standard Rubber Seals | COMBI Reinforced Seals | Industrial Grade (PTFE) |
|---|---|---|---|
| Service Life | Short (6-12 Months) | Long (24-36 Months) | Extra Long (48+ Months) |
| Leakage Rate | Moderate | Very Low | Minimal |
| Installation Cost | Low | Moderate | High |
| Maintenance Interval | Frequent | Extended | Rare |
| Overall ROI | Low (High Downtime) | High (Balanced) | Premium (Low Downtime) |
Frequently Asked Questions
Q: What is the primary advantage of NBR material in hub oil seals?
NBR (Nitrile Rubber) provides excellent resistance to petroleum-based oils and fuels, making it ideal for wheel hubs that use standard lubricants, while maintaining good abrasion resistance.
Q: Can these seals be customized for non-standard tractor models?
Yes, we provide customized manufacturing services. If you provide the inner diameter, outer diameter, and width, we can develop a seal to your exact specifications.
Q: How does the metal ring enhance the performance of the rubber seal?
The metal ring provides structural rigidity, preventing the seal from distorting under high pressure and ensuring it remains securely seated in the hub housing.
Q: What are the signs that a wheel hub oil seal needs replacement?
Common signs include visible oil leaks around the hub, contamination of the outer wheel rim, and unusual noise from the bearings due to lubricant loss.
Q: Is NBR suitable for extreme temperature environments?
NBR is suitable for moderate temperatures. For extreme heat or chemical exposure, we recommend upgrading to HNBR or PTFE-coated seals for better thermal stability.
Q: What is the minimum order quantity for these hub seals?
The standard MOQ is 20 pieces per size, though we can discuss smaller quantities for sample orders or specific customized projects.
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Hebei Hankai Machinery Equipment Co., Ltd.
