FREUDENBERG BAU2SLX27 18x35x7 40412775

Freudenberg Simmerring BASL Radial Shaft Seal 18x35x7

Description

This is a genuine Freudenberg Simmerring, model BASL, a high-quality radial shaft seal designed for demanding industrial applications. With dimensions of 18x35x7 mm and constructed from the robust 75 FKM 585 material, this seal provides excellent performance, durability, and resistance to high temperatures and aggressive media. The AS design includes a dust lip for enhanced protection against external contaminants.

Specifications

• Inner Diameter (d1): 18 mm
• Outer Diameter (d2): 35 mm
• Width (b): 7 mm
• Material Compound: 75 FKM 585 (Fluoroelastomer)
• Design: BASL / DIN AS (Standard design with dust lip)

Label Info

• Manufacturer: Freudenberg
• Article Number: 40412775
• Type: BAU2SLX27 18x35x7
• Lot Number: 228154 / 139696182
• Cure Date: 2018-03-13

Application

Ideal for use in a wide range of machinery including pumps, gearboxes, electric motors, and drive shafts where reliable sealing of rotating components is critical to prevent lubricant leakage and contamination ingress.

Country of Origin

Made in the Czech Republic.

CO2 Impact

By choosing this refurbished or surplus component, you contribute to a circular economy, avoiding approximately 0.2 kg of CO2 emissions compared to a new production. This saving is equivalent to the energy needed to charge a smartphone 24 times.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the primary advantage of FKM material over standard NBR for a shaft seal?

FKM (Fluoroelastomer), like the 75 FKM 585 compound used here, offers significantly higher temperature resistance (up to 200 deg C) and superior chemical resistance to oils, fuels, and acids compared to NBR (Nitrile Butadiene Rubber), which is typically limited to around 100-120 deg C.

What does the ‘AS’ designation in the DIN standard signify for this seal?

The ‘AS’ designation indicates a standard design profile for a radial shaft seal that includes an additional, non-spring-loaded protective lip (dust lip). This lip faces outwards to prevent dust, dirt, and other contaminants from reaching the primary sealing lip, thereby increasing the seal’s service life and reliability.

Is this seal suitable for high-pressure applications?

Standard radial shaft seals like this BASL model are designed for low-pressure applications, typically up to 0.5 bar (7 psi). For applications with higher pressures, specially designed high-pressure seals or alternative sealing solutions should be considered to prevent seal failure.

Last Update: Friday, March 13, 2026

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