Struggling with oil leaks, dust intrusion, or short-lived seals? It might be time to switch to a skeleton oil seal—a trusted solution in high-speed and high-pressure systems.
Skeleton oil seals provide enhanced shaft sealing with internal metal reinforcement, extending service life and performance.
Read on to learn what they are, how they work, and how to choose the right type for your machinery.
What makes a skeleton oil seal different from a standard seal?
Unlike regular rubber seals, a skeleton oil seal includes a metal insert that reinforces the sealing structure.
This “skeleton” helps maintain lip pressure and positioning even under misalignment, pressure, and rotation.
Also known as radial shaft seals, they combine flexibility from rubber (NBR or FKM) with the strength of steel—ideal for motors, pumps, and gearboxes.
Looking for high-strength applications? Explore our Etanșare schelet TG4 with dust lip protection.
What types of skeleton oil seals are available?
There’s no one-size-fits-all in dynamic sealing. Each application requires a tailored design.
| Tip | Structura | Buză de praf | Utilizare comună |
|---|---|---|---|
| TG4 | Buză dublă cu buză de praf | ✅ | Motoare, pompe, cutii de viteze |
| TC | Buză dublă cu carcasă metalică | ❌ | Utilizare industrială standard |
| Tip K | Profil compact | ❌ | Locuințe înguste, spații limitate |
| Tip împărțit | Open-style, easy install | ✅ | Field repairs and maintenance |
Noastre TC Skeleton Oil Seal is ideal for standard rotation sealing without dust interference.
Which materials are used in skeleton oil seals?
Rubber alone isn’t enough. Material choice defines durability and performance.
| Material | Numele complet | Proprietăți | Caz de utilizare |
|---|---|---|---|
| BNR | Cauciuc nitrilic | Rezistent la ulei, accesibil, de la -40°C la +120°C | Motors, compressors, low-temp |
| FKM | Fluoroelastomer | Rezistent la căldură și la substanțe chimice, de la -30°C la +200°C | Gearboxes, engines, high-temp |
Noastre Sigilii FKM are ideal for chemical and thermal extremes. NBR fits general industry needs.
Where are skeleton oil seals commonly used?
Skeleton oil seals are standard in:
- Motoare electrice
- Pompe hidraulice
- Automotive crankshafts
- Gearboxes
- Industrial fans and blowers
Need guidance? Our Diagrama de referință încrucișată a garniturii de ulei helps match OEM parts like National and SKF.
How do I choose the right type?
Use this checklist to avoid mismatches:
| Factor | Ce trebuie verificat |
|---|---|
| Diametrul arborelui | Must match seal’s inner diameter |
| Housing Bore | Fit outer diameter tightly |
| Speed Rating | NBR ≤15 m/s, FKM supports higher speeds |
| Temperatură | Use FKM above 120°C |
| Media Resistance | FKM needed for fuel/solvent exposure |
| Dusty Conditions | Use types with dust lips (TG4, Split) |
For tough environments, we recommend the TG4 double-lip design with NBR or FKM rubber.
Concluzie
Skeleton oil seals combine durability, stability, and high sealing integrity. The right type ensures reliability across electric, hydraulic, and rotating systems.
Request Custom Sizes or Bulk Supply
We offer OEM, split-style, and dual-lip variants for all sectors.
📩 E-mail: [email protected]
📱 WhatsApp: +86 17622979498
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Cum să identifici garnitura de ulei potrivită după numărul de piesă sau dimensiunea?
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