SIMRIT B2 104x130x13 40411901

Simrit B2 104x130x13 Radial Shaft Seal

Description

This is a genuine Simrit Simmerring, model B2, with dimensions 104x130x13 mm. As a high-quality radial shaft seal from Freudenberg, it is designed to provide reliable sealing for rotating shafts. This component is crucial for preventing lubricant leakage and protecting bearings and other internal components from external contaminants like dust and moisture. This item is new old stock, in its original packaging.

Specifications

• Manufacturer: Simrit (Freudenberg)
• Model: B2
• Part Number: 40411901
• Inner Diameter (d1): 104 mm
• Outer Diameter (d2): 130 mm
• Width (b): 13 mm
• Material Compound: 72 NBR 902 (Nitrile Butadiene Rubber)

Label Info

• Charge: 0000259522
• Cure Date: 06.05.2011

Application

Ideal for use in a wide range of industrial applications including gearboxes, motors, pumps, and general machinery where effective sealing of rotating shafts is required.

Country of Origin

Made in CZ (Czech Republic).

CO2 Impact

Reusing this seal avoids the CO2 emissions associated with manufacturing a new part. By choosing this surplus component, you contribute to a circular economy and reduce industrial waste.

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 shelf life of an NBR seal with a 2011 cure date?

NBR (Nitrile) seals generally have a shelf life of 5 to 10 years when stored correctly (away from UV light, ozone, and extreme temperatures). While this seal from 2011 is past the typical recommendation, its performance depends heavily on storage conditions. It should be inspected for hardness, cracks, or deformation before installation.

What does the “B2” designation in the model number signify?

The “B2” design refers to a specific construction type for Simmerring seals. It typically indicates a metal outer casing and a spring-loaded sealing lip made of elastomer. This design provides a secure press-fit into the housing bore.

Is the “72 NBR 902” compound suitable for high-temperature or aggressive chemical applications?

72 NBR 902 is a standard Nitrile Butadiene Rubber compound. It has excellent resistance to mineral oils, greases, and hydraulic fluids. Its typical operating temperature range is from approximately -30 deg C to +100 deg C. For higher temperatures or aggressive chemicals, a seal made from FKM (Viton) or another specialty elastomer would be required.

Last Update: Friday, March 13, 2026

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