Rotary Shaft Seal 48x65x16.5 COMBI SF6 FPM Oil Seal

Applications - rotary sealing for demanding conditions

The rotary shaft seal 48x65x16.5 COMBI SF6 FPM is a high-performance oil seal designed for heavy-duty industrial applications and automotive systems. It is used wherever reliable rotary sealing is required under combined rotational and axial movements, high contamination levels, or elevated operating temperatures.

This shaft sealing ring is commonly applied in drive axles, gear units, engines, heavy machinery, and off-road equipment, where standard solutions fail to provide sufficient protection. The COMBI design makes it especially suitable for environments with dust, mud, and aggressive operating media.

COMBI design - high durability and effective protection

The COMBI construction integrates multiple sealing and protective elements into one compact technical seal. This design significantly improves resistance to external contaminants while maintaining stable contact pressure on the shaft.

Manufactured from FPM (fluoro rubber), the seal offers excellent resistance to oils and grease, fuels, and high temperatures. Compared to a standard single lip oil seal, the COMBI configuration can function as a double lip oil seal, providing both primary sealing and additional dirt exclusion. This results in reduced shaft wear, extended service life, and higher operational reliability.

Technical data

• Product type: rotary shaft seal / oil seal

• Design: COMBI SF6

• Material: FPM (fluoro rubber)

• Dimensions: 48x65x16.5 mm

• Function: rotary sealing

• Seal type: can operate as single or double lip seal depending on application

• Resistance: oils, greases, high temperatures, contamination

• Typical use: industrial machinery, engines, drive systems

Main SEO description

The rotary shaft seal 48x65x16.5 COMBI SF6 FPM is a professional rotary oil seal engineered for applications requiring maximum reliability and long service life. Designed for continuous operation, it provides effective shaft sealing in systems exposed to heavy loads, contamination, and demanding environmental conditions.

The FPM material ensures high durability and excellent resistance to oils, greases, fuels, and elevated temperatures, making this seal suitable for both hydraulic and automotive seals applications. The COMBI construction combines multiple sealing functions in one unit, offering superior protection compared to standard single lip designs.

This seal is widely used as an engine seal and industrial shaft seal in gearboxes, drive axles, and heavy machinery, where precise fit and stable sealing performance are essential. With accurately manufactured dimensions of 48x65x16.5 mm, it ensures reliable installation, minimized leakage risk, and extended maintenance intervals.

FAQ - frequently asked questions

What is the difference between a single lip and double lip oil seal?
A single lip oil seal provides basic sealing, while a double lip seal adds an extra lip for improved dirt and contamination protection.

Why is FPM used in rotary shaft seals?
FPM offers excellent resistance to oils, grease, chemicals, and high temperatures, making it ideal for demanding industrial environments.

How do I select the correct shaft seal size?
The first dimension refers to shaft diameter, the second to housing diameter, and the third to seal width.

Is this seal suitable for engine and gearbox applications?
Yes, it is commonly used as an engine seal and in drive and gearbox systems.

Can this seal replace standard oil seals?
Yes, especially in applications where higher durability and contamination resistance are required.