Generic WA Type Rotary Shaft Seal 26x37x7 mm

Description

This is a standard industrial rotary shaft seal, also known as an oil seal. It features a 26 mm inner diameter, a 37 mm outer diameter, and a 7 mm width. The WA design indicates a rubber-covered outer diameter with a single sealing lip and a garter spring, providing reliable sealing for rotating shafts in a wide range of applications.

Specifications

• Inner Diameter (ID): 26 mm
• Outer Diameter (OD): 37 mm
• Width: 7 mm
• Type: WA (according to DIN 3760)
• Material: NBR (Nitrile Butadiene Rubber)

Label Info

• Type: DICHT 026x037x07 WA

Application

Common applications include gearboxes, motors, pumps, and axles where it's essential to retain lubrication and exclude dirt, dust, and water from contaminating the system.

CO2 Impact

By purchasing this component, you are contributing to a circular economy. This small part saves approximately 0.15 kg of CO2 emissions compared to new production, which is equivalent to charging a smartphone 18 times.

Availability

This product is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

What is the typical pressure rating for a WA type seal?

WA type seals are generally designed for low-pressure applications, typically up to 0.5 bar (7 PSI). For higher pressures, specialized seals or system modifications may be required.

NBR (Nitrile) offers excellent resistance to mineral oils and greases at temperatures up to approximately 100 deg C. However, for higher temperatures or exposure to aggressive chemicals, alternative materials like FKM (Viton) are recommended.

The garter spring provides a constant, uniform radial force, pressing the sealing lip against the shaft. This ensures a consistent and reliable seal, even with minor shaft imperfections or thermal expansion.

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Last Update: Friday, March 13, 2026