Rotary Shaft Seal Simrit 172x190x8.5 BABSL 75 FKM

Applications

The Simrit 172x190x8.5 BABSL 75 FKM rotary shaft seal is a double lip oil seal designed for demanding industrial and automotive applications where high temperature and chemical resistance are essential. It is commonly used in engines, gearboxes, transmissions, pumps and heavy-duty machinery. The BABSL design, featuring a primary sealing lip and an additional dust lip, is ideal for environments exposed to heat, oils, fuels and external contamination.

Advantages

Manufactured from FKM (Viton®) with 75 Shore A hardness, this rotary seal offers high durability and excellent resistance to oils and grease, fuels, chemicals and thermal ageing. The double lip construction ensures reliable oil retention while protecting the sealing area from dust and dirt. An integrated garter spring maintains constant radial pressure on the shaft, while the optimized lip geometry minimizes wear and supports stable operation at varying rotational speeds.

Technical Data

• Size: 172x190x8.5 mm

• Type: BABSL - double lip oil seal with dust lip

• Sealing material: FKM (Viton®) 75 ShA

• Design: spring-loaded sealing lip, elastomer-coated outer diameter

• Function: radial rotary shaft sealing

Main Description

The Rotary Shaft Seal Simrit 172x190x8.5 BABSL 75 FKM is a high-performance technical oil seal developed for reliable shaft sealing in harsh operating conditions. As a double lip rotary shaft seal, it combines effective lubricant retention with active protection against external contamination, extending the service life of both the seal and the machine components.

The FKM sealing lips provide superior resistance to high temperatures, oils, greases and aggressive media, making this shaft sealing ring suitable for demanding industrial applications. The precisely engineered lip profile ensures uniform contact pressure on the shaft, while the dust lip prevents dirt and moisture from entering the sealing area. This design reduces leakage risk and supports long-term operational stability.

With standard dimensions of 172x190x8.5 mm, this oil seal is widely used in OEM production, maintenance and overhaul operations. The BABSL 75 FKM design is especially recommended for engines, transmissions and industrial machinery operating under continuous load and elevated temperatures. It meets the expectations of B2B customers seeking durable, technically proven and repeatable sealing solutions.

FAQ

What is the difference between a single and double lip oil seal?
A double lip oil seal includes an additional dust lip that protects against external contaminants.

Why choose FKM instead of NBR?
FKM offers higher temperature resistance, better chemical stability and longer service life.

Where is the BABSL 75 FKM seal typically used?
In engines, gearboxes, pumps and industrial machinery exposed to heat and aggressive media.

Is this rotary shaft seal suitable for continuous operation?
Yes, the BABSL design and FKM material are suitable for long-term continuous use.

How do I select the correct rotary shaft seal size?
Selection is based on shaft diameter, housing bore diameter and seal width.