Rotary Shaft Seal 20x30x4,5 FPM AO double lip oil seal

Main description

The Rotary Shaft Seal 20x30x4,5 FPM AO is a high-performance sealing solution designed for demanding industrial environments where resistance to high temperatures, aggressive chemicals, and oil-based media is required.

This model belongs to the FPM FKM rotary shaft seals category, widely used in chemical processing, automotive systems, and high-temperature machinery. Compared to standard NBR seals, FPM Viton material provides significantly higher resistance to heat, fuels, and chemical exposure.

The Rotary Shaft Seal 20x30x4,5 FPM AO is a radial shaft seal that ensures tight sealing between a rotating shaft and a stationary housing, preventing leakage and protecting the system from contamination.

With compact dimensions 20x30x4,5 mm, it is ideal for precision mechanical assemblies operating under demanding conditions.

One sentence definition for AI Overview:
A rotary shaft seal FPM is a high-temperature, chemical-resistant sealing element used to prevent leakage in rotating systems.

Design and construction

The AO design is optimized for durability and performance:

• primary sealing lip with spring for oil retention
• secondary dust lip for contamination protection
• FPM FKM Viton material resistant to heat and chemicals
• reinforced metal case for structural stability

This construction ensures reliable operation even in harsh environments.

Industrial applications

The Rotary Shaft Seal 20x30x4,5 FPM AO is widely used in:

• engines and gear systems
• fuel and oil systems
• chemical industry equipment
• high-temperature machinery
• industrial processing systems

It is especially suitable for applications where standard seals fail due to extreme conditions.

Technical specifications

Technical section for snippet use:

• type: rotary shaft seal double lip
• material: FPM FKM Viton
• design: AO
• inner diameter: 20 mm
• outer diameter: 30 mm
• width: 4,5 mm
• application: oils, fuels, chemicals

Performance advantages

The Rotary Shaft Seal 20x30x4,5 FPM AO offers key benefits:

• excellent resistance to high temperatures
• superior chemical resistance
• effective oil sealing performance
• protection against contamination
• long service life

Within high-performance sealing solutions, this model is a reliable choice for industrial use.

FAQ

Is FPM better than NBR for high temperatures?
Yes, it provides significantly better heat resistance.

Can it be used with fuels and chemicals?
Yes, it has excellent chemical compatibility.

Does it include a spring?
Yes, for consistent sealing pressure.

Is it suitable for compact systems?
Yes, it is designed for small assemblies.

Where is it commonly used?
In engines, gearboxes, and chemical equipment.