Looking to replace a worn oil seal but unsure whether to choose National or SKF? Or maybe you’re cross-referencing part numbers and need to find a compatible alternative?
Και οι δύο Εθνικός και SKF are trusted brands in the sealing world—but how do they compare, and which oil seal is best for your needs?
In this article, I’ll walk you through the key differences between National and SKF oil seals, how to use a cross reference chart, and whether aftermarket options like Hengoseal can match their performance.
What is the difference between National and SKF oil seals?
| Χαρακτηριστικό | National® | SKF® |
|---|---|---|
| Brand Origin | USA (Federal-Mogul / Timken) | Sweden (SKF Group) |
| Industry Focus | Automotive, Heavy-Duty | Αυτοκίνητο, Βιομηχανικό |
| Common Structure | TC, SC | CR Seals (Chicago Rawhide), TC |
| Διαθεσιμότητα | North America heavy use | Global OEM preference |
| Price Range | Moderate to Premium | Often higher (OEM-specified) |
National seals are widely used in trucks and trailers, while SKF is more common in OEM-level European, Asian, and American equipment.
If you’re replacing seals in Japanese cars or industrial machines, you may also consider TC-type Hengoseal oil seals that match the same specs at lower cost.
Are SKF oil seals OEM quality?
Yes—SKF is a leading OEM supplier.
SKF’s CR Seals (formerly Chicago Rawhide) are factory-installed in many vehicles from:
- Volvo
- Volkswagen
- John Deere
- Komatsu
- Toyota
SKF oil seals are known for:
- Tight manufacturing tolerances
- Premium materials (including Viton/FKM)
- Long service life under harsh conditions
However, OEM quality doesn’t always mean best value. For distributors and importers, aftermarket equivalents with OEM-level specs can save cost while maintaining performance.
Ρίξτε μια ματιά στο δικό μας OEM vs Aftermarket Oil Seal Guide for deeper insight.
How to cross reference National to SKF oil seals?
Use an oil seal cross reference chart to match dimensions and structure:
| Βήμα | Action |
|---|---|
| 1. | Locate your part number (e.g. National 471763) |
| 2. | Match ID × OD × Width (e.g. 38.1 × 62.0 × 10.9 mm) |
| 3. | Identify structure (e.g. TC double lip) |
| 4. | Search SKF equivalent (e.g. SKF 15207) |
| 5. | Check material: NBR vs FKM, rubber or metal shell |
For quick matching, use our online Διάγραμμα διασταυρούμενης σφραγίδας λαδιού or send us your specs for direct mapping.
We also help buyers convert part numbers into automotive-grade alternatives.
Should I use National, SKF or aftermarket oil seals?
It depends on your application:
| Περίπτωση χρήσης | Σύσταση |
|---|---|
| OEM engine rebuild | Stick with SKF or National |
| Industrial repair | OEM or certified aftermarket |
| Distributors/Importers | Aftermarket for cost & flexibility |
| Maintenance workshops | Aftermarket with fast delivery |
| High-temp zones | FKM seals, regardless of brand |
At Hengoseal, we manufacture OEM-equivalent TC and TG4 seals με FKM or NBR, rubber-coated or metal shell options, and full global size range.
Products like our Σφραγίδα λαδιού TG4 meet or exceed the performance of common National/CR references, while reducing procurement cost.
Can I use a Hengoseal equivalent to National or SKF?
Absolutely. We specialize in:
- Custom branding
- Low MOQ (even < 100 pcs)
- Fast production & global shipping
- Full spec match by sample, drawing, or part number
If you’re sourcing for automotive, pump, or gearbox seals and want an OEM-match solution without the OEM price, we can help.
Whether you’re comparing National vs SKF seals for technical performance, price advantage, or supplier flexibility, the key is choosing a supplier that supports your full spec—from size and material to logistics and MOQs.
Our team can help you cross reference thousands of part numbers and deliver compatible seals at factory-direct pricing.
📧 Email: [email protected]
📱 WhatsApp: +86 17622979498
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