TG4 Oil Seal: What Is It, and When Should You Use It?

TG4 Oil Seal: What Is It, and When Should You Use It?

Ever faced issues with oil leakage or dust infiltration in rugged environments? A TG4 oil seal might be the solution you're looking for. This double-lip shaft seal is specifically engineered for applications requiring superior grease retention and dirt resistance.

What is a TG4 oil seal used for?

A TG4 oil seal is used to protect mechanical systems by sealing lubricants inside and keeping contaminants out. Unlike basic shaft seals, it features a dual-lip design with a rubber-coated metal shell, making it perfect for:

  • Off-road machinery
  • Gearboxes and reducers
  • Electric motors in dusty environments
  • Agricultural and construction equipment

The inner lip retains oil or grease, while the outer dust lip blocks external debris. Its rubberized shell improves vibration damping, allowing better sealing even in slightly imperfect bores.

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How does TG4 differ from TC oil seals?

Though both are double-lip rotary seals, TG4 and TC differ in design and application suitability:

Caracteristică Etanșare TG4 Garnitura de ulei TC
Outer Shell Carcasa din otel acoperita cu cauciuc All-metal shell
Sealing Fit More forgiving on rough surfaces Requires smooth bore
Vibration Control High due to rubber casing Moderat
Cel mai bun pentru Dusty, rugged, vibrating environments Clean, high-speed applications

For more on TC seals, check our TC Oil Seal Guide.

What are the best applications for TG4 shaft seals?

TG4 oil seals thrive in environments where oil retention and contamination exclusion are critical. Common applications include:

  • Industrial fans and blowers
  • Construction vehicle drive shafts
  • Small engines operating in dusty zones

Their double-lip structure provides enhanced durability over single-lip designs, which are prone to quicker wear in aggressive settings. For a broader view, refer to our Skeleton Oil Seal Selection Guide.

What materials are TG4 oil seals made from?

Material selection impacts chemical resistance and temperature stability. Hengoseal manufactures TG4 seals in:

Material Interval de temperatură Cel mai bine folosit în
BNR -40°C până la +120°C General-purpose industrial use
FKM -30°C până la +200°C High-temp or chemically harsh systems

For a deep dive, explore FKM vs NBR Oil Seal Comparison.

How do you install a TG4 oil seal properly?

Incorrect installation is a leading cause of premature seal failure. Here’s how to install TG4 seals correctly:

  • Lubricate the sealing lip before fitting
  • Align the seal with the shaft, using a press or seal driver
  • Ensure the dust lip faces outward
  • Avoid damaging the rubber coating during installation

A complete guide is available in our Ghid de instalare a garniturii de ulei.

Concluzie

TG4 oil seals are engineered for reliability in extreme environments. Their double-lip structure and rubber-coated metal frame offer superior dust resistance and vibration tolerance—making them a go-to choice for industrial, automotive, and agricultural machinery.

Get Expert Help or Order Now

Looking for TG4 oil seals in standard or OEM specs? Hengoseal offers NBR and FKM materials, custom sizes, and low MOQs for global orders.

E-mail: [email protected]
WhatsApp: +86 17622979498 Explore TG4 Oil Seal Products

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Oamenii întreabă și ei

1. Are TG4 oil seals interchangeable with TC seals?
Not exactly. While both are double-lip seals, TG4's rubber-coated shell allows more flexibility in harsh, vibrating conditions.
2. Do TG4 oil seals require outer sealant?
Generally not. The rubber exterior provides adequate bore sealing. Only use sealant if bore is damaged.
3. Can I order TG4 seals in both NBR and FKM?
Yes. Hengoseal supports mixed material orders with low minimum quantities.
4. What is the maximum shaft speed for TG4 seals?
Typically 10–15 m/s, depending on seal size and lubrication quality.
5. Are TG4 oil seals good for water pump use?
Not ideal. Consider high-speed or water-specific seals for those applications.
6. What is the MOQ for private-labeled TG4 seals?
Just 100 pieces. Custom branding and packaging supported.
7. Can TG4 seals replace NOK or National brands?
Yes. Hengoseal matches standard sizing and offers cross-reference support.
8. Can I install TG4 seals without special tools?
We recommend using a seal driver or press to avoid misalignment and lip damage.

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