FPM Rotary Shaft Seal 250x280x15 A/SC Single Lip

Applications

The FPM Rotary Shaft Seal 250x280x15 A/SC is designed for demanding industrial applications requiring reliable rotary sealing of shafts. It is commonly used in gearboxes, pumps, compressors, engines, and heavy industrial machinery where resistance to high temperatures and aggressive media is essential. The single lip A/SC design ensures effective oil sealing with low friction and stable shaft contact.

Advantages

Manufactured from FPM (FKM), this oil seal offers excellent resistance to mineral and synthetic oils, greases, fuels, and elevated temperatures. Compared to standard NBR seals, FPM provides significantly higher thermal and chemical stability, resulting in extended service life. The single lip configuration is suitable for applications where a dust lip is not required, prioritizing durability and precise sealing performance in continuous operation.

Technical Data

• Product type: rotary shaft seal / oil seal

• Dimensions: 250x280x15 mm

• Material: FPM (FKM)

• Design: A/SC - single lip

• Function: radial shaft sealing

• Resistance: oils, greases, high temperatures

• Application: industrial machinery and engines

Main Description

The FPM Rotary Shaft Seal 250x280x15 A/SC is a professional technical sealing component engineered for long-term use in harsh industrial environments. The single sealing lip maintains consistent contact with the shaft, effectively preventing oil leakage while minimizing friction and wear. The FPM compound ensures stable elasticity and sealing efficiency even under continuous thermal stress.

This seal is widely selected for applications where standard rubber seals fail due to temperature or chemical exposure. As a reliable rotary oil seal, it supports operational continuity, reduces maintenance intervals, and helps protect critical machine components. It is suitable for OEM installations as well as maintenance and overhaul operations in industrial systems.

FAQ - Frequently Asked Questions

What is the difference between single lip and double lip seals?
Single lip seals focus on oil retention, while double lip seals include an additional dust lip for contamination protection.

Why choose FPM instead of NBR?
FPM offers higher resistance to temperature, oils, and aggressive chemicals.

Is this seal suitable for continuous operation?
Yes, it is designed for long-term industrial use under demanding conditions.

How do I select the correct seal size?
Match the inner diameter to the shaft, outer diameter to the housing, and width to the available space.