Simmering 19x26x4.5 BAKHDSN FPM+PTFE - Oil Seal for Shaft

Application of the 19x26x4.5 BAKHDSN oil seal

The Simmering 19x26x4.5 BAKHDSN FPM+PTFE is a high-performance rotary shaft oil seal designed for demanding industrial and automotive applications. It is used wherever reliable sealing, chemical resistance and stable operation at elevated temperatures are required. Typical applications include engines, gearboxes, pumps, hydraulic systems and industrial machinery where standard oil seals are not sufficient.

The BAKHDSN profile combines an elastomer FPM body with a low-friction PTFE sealing element. This design ensures effective rotary sealing, reduced wear and consistent performance even under variable loads and shaft speeds. The seal is suitable for continuous operation and applications with frequent start-stop cycles.

Advantages of FPM+PTFE construction

The use of FPM (FKM) provides excellent resistance to oils, greases, fuels and aggressive chemicals, as well as dimensional stability across a wide temperature range. The PTFE sealing lip significantly reduces friction, minimizes heat generation and allows higher shaft speeds compared to conventional rubber seals. As a result, the oil seal offers high durability, long service life and predictable operating behavior.

This solution is commonly selected as a machine oil seal in systems where reliability and reduced maintenance downtime are critical. Compared to basic single-lip designs, the BAKHDSN construction provides enhanced sealing efficiency and wear resistance.

Technical data

• Product type: simmering / oil seal

• Dimensions: 19x26x4.5 mm

• Profile: BAKHDSN

• Material: FPM + PTFE

• Function: rotary shaft sealing

• Applications: engines, gearboxes, pumps, industrial machines

FAQ - frequently asked questions

What is the difference between FPM and NBR oil seals?
FPM offers higher temperature resistance and better chemical compatibility than NBR.

Why is PTFE used in this oil seal?
PTFE reduces friction, improves wear resistance and allows higher shaft speeds.

Is this oil seal suitable for engine applications?
Yes, it is commonly used as an engine shaft oil seal.

How do I select the correct oil seal size?
The inner diameter must match the shaft diameter, and the material must suit operating conditions.

Is this a single-lip or double-lip oil seal?
The BAKHDSN profile is an advanced technical sealing design offering enhanced sealing performance compared to basic solutions.