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Help CenterHydraulic Double Lips Steel Spring Skeleton Oil Seal Tc/Tg FKM for Heavy Duty Applications
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As a manufacturer with over two decades of experience, Anping County Boli Hardware Wiremesh Products Factory has expanded its expertise to deliver high-quality sealing solutions. Our Hydraulic Double Lips Steel Spring Skeleton Oil Seal TC/TG FKM is engineered for the most demanding heavy-duty applications, combining robust construction with advanced material technology. Designed to provide reliable sealing performance under extreme pressure, temperature, and speed conditions, this oil seal is a critical component in hydraulic cylinders, pumps, motors, and gearboxes. We leverage our established global supply chain—serving markets across North America, South America, Europe, Africa, and Asia—to bring you a product that meets rigorous international standards without compromising on cost-effectiveness.
Our oil seal features a double lip design with a built-in steel spring skeleton, ensuring outstanding dynamic sealing and contamination exclusion. The primary lip prevents fluid leakage, while the secondary lip shields against dust, dirt, and moisture. The FKM (Viton) rubber compound offers exceptional resistance to high temperatures, aggressive hydraulic fluids, and chemicals, making it ideal for harsh environments. Whether you are operating in mining, construction, agriculture, or industrial machinery, this seal delivers consistent performance and extended service life.
Key Features & Technical Specifications
- Double Lip Design: Primary lip for sealing, auxiliary lip for contamination protection.
- Steel Spring Skeleton: Provides uniform radial load, compensating for shaft wear and misalignment.
- FKM Material: Excellent thermal stability (-20°C to +200°C), chemical resistance, and low compression set.
- TC/TG Profile: Suitable for both rotating and reciprocating applications; TC type has a dust lip, TG type has a plain outer diameter.
- Hydraulic Compatibility: Works with mineral oils, synthetic fluids, and water-glycol mixtures.
- Customizable Dimensions: Available in a wide range of inner diameters, outer diameters, and heights to fit your specific shaft and housing.
- Extended Service Life: Reduced friction and wear due to optimized lip geometry and material formulation.
| Parameter | Specification |
|---|---|
| Material | FKM (Viton® equivalent) |
| Lip Configuration | Double lips with spring |
| Skeleton | Steel spring (carbon steel or stainless steel) |
| Hardness (Shore A) | 70 ± 5 (standard), other ranges available |
| Operating Temperature | -20°C to +200°C (continuous) |
| Max Surface Speed | Up to 15 m/s (depending on shaft material and lubrication) |
| Pressure Range | Up to 0.5 MPa (static), 0.05 MPa (dynamic) |
| Color | Black (custom colors upon request) |
Advantages & Customer Benefits
- Enhanced Reliability: The double lip design minimizes the risk of fluid leakage and contaminant ingress, reducing downtime and maintenance costs.
- Superior Material Performance: FKM rubber withstands high temperatures and aggressive fluids, making it suitable for hydraulic systems with fire-resistant fluids or extreme operating conditions.
- Reduced Friction: Optimized lip geometry and surface finish lower friction, leading to less energy loss and cooler operation.
- Easy Installation: Precision-molded dimensions ensure a secure fit without special tools. The steel spring maintains consistent radial force during installation and operation.
- Flexible Customization: We offer custom sizes, colors, and material blends (e.g., HNBR, NBR) to match your specific application requirements. Minimum order quantity is negotiable.
- Global Logistics Support: With multiple ports of shipment (Tianjin, Qingdao, Shanghai, Foshan) and a proven export value of US$5-10 million annually, we ensure timely delivery worldwide.
Each oil seal undergoes rigorous quality control including dimensional inspection, visual check, and functional testing under simulated operating conditions. Our production facility in Hengshui, Hebei, China, has been manufacturing sealing components since 1998, giving us deep expertise in material science and precision molding. We are committed to providing products that meet or exceed industry standards, such as ISO 6194 and DIN 3760 (where applicable).
Why Choose Anping County Boli Hardware?
As a trusted manufacturer with over 26 years of history, we have supplied sealing solutions to clients in North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and beyond. Our annual export value of US$5 million to US$10 million demonstrates our capability to handle large-volume orders with consistent quality. We understand the critical nature of oil seals in heavy-duty applications, and we back our products with responsive technical support and flexible after-sales service. Whether you need a standard size or a custom design, we invite you to contact us for a quote or sample testing. Experience the reliability of a seal that is built to last.
Frequently Asked Questions (FAQ)
-
Q: What is the difference between TC and TG type oil seals?
A: TC type has an additional dust lip on the outer side, making it suitable for applications with high dirt exposure. TG type has a plain outer diameter without a dust lip, typically used in cleaner environments or where space is limited. Both types feature a steel spring skeleton and double main lips. -
Q: Can this oil seal be used in high-pressure hydraulic systems?
A: Yes, but the dynamic pressure limit is approximately 0.05 MPa (0.5 bar) for continuous rotation. For higher pressures, a backup ring or a different seal design may be required. Please consult our technical team for specific application parameters. -
Q: What is the maximum operating temperature for FKM oil seals?
A: The standard FKM compound can operate continuously from -20°C to +200°C. For short-term peaks, up to +230°C is possible. If you require higher temperature resistance, we can offer special FKM grades (e.g., perfluoroelastomer) upon request. -
Q: Do you provide custom sizes? What is the minimum order quantity?
A: Yes, we can produce custom sizes for inner diameter, outer diameter, and height. The minimum order quantity (MOQ) depends on the complexity and size. For standard sizes, MOQ is typically 100 pieces; for custom sizes, it may be higher. Contact us for a detailed quotation. -
Q: How should I store oil seals before installation?
A: Store in a cool, dry place away from direct sunlight, ozone, and heat sources. Keep original packaging until use. Avoid contact with sharp objects. The shelf life of FKM seals is typically 5–8 years under proper storage conditions. -
Q: Are these seals suitable for food-grade or pharmaceutical applications?
A: Standard FKM is not food-grade certified. However, we can source FDA-compliant FKM compounds if needed. Please specify your industry requirements for a tailored solution. -
Q: What is the recommended surface finish for the shaft?
A: For optimal sealing performance, the shaft surface should have a hardness of at least HRC 45 and a finish of Ra 0.2–0.8 µm. Grooves, scratches, or corrosion can reduce seal life. -
Q: Do you offer samples for testing?
A: Yes, we provide samples for evaluation. Sample cost and shipping charges may apply, but we can deduct them from future bulk orders. Please send your inquiry with detailed dimensions and application info.
We are confident that our Hydraulic Double Lips Steel Spring Skeleton Oil Seal TC/TG FKM will exceed your expectations in terms of durability, performance, and value. For more information or to place an order, please contact our sales team. Let us help you keep your heavy-duty equipment running smoothly.
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