Freudenberg Sealing Technologies Simrit Rotary Shaft Seal 72 Nitrile Butadiene Rubber 52 mm ID, 68 mm OD, 8 mm 40412194

Freudenberg Sealing Technologies Simrit model 40412194 rotary shaft seal manufactured from 72 Nitrile Butadiene Rubber 902 provides high performance sealing solutions in demanding industrial environments. This seal features a 52 mm inside diameter, 68 mm outside diameter, and a thickness of 8 mm, making it suitable for a wide range of rotating shaft sealing applications.

The seal’s elastomer outer casing utilizes NBR 902 nitrile rubber, combined with a spring-loaded sealing lip to offer excellent wear resistance and operational reliability. It effectively seals against mineral and synthetic oils, as well as various greases, which makes it well-suited for use in power transmission, automotive, railway, aerospace, machine tools, fluid handling, production line equipment, and power generation industries.

With ISO h11 shaft tolerance and H8 housing bore tolerance, this seal maintains precise fitment and sealing performance. Industrial advantages include up to 80% reduction in friction torque and 50% lower specific heat generation, resulting in reduced power consumption and extended service life. It withstands pressures up to 0.5 bar and can operate at shaft velocities up to 40 meters per second, supporting bidirectional rotation.

The seal contributes to reducing downtime and maintenance costs by improving wear characteristics and heat/friction management in rotating equipment. Inner diameter of 52 mm allows precise shaft sealing. Outer diameter of 68 mm fits tightly in housing bore.

8 mm thickness provides durable sealing lip. 72 Nitrile Butadiene Rubber 902 composition offers oil and grease resistance. Spring-loaded lip reduces wear and improves sealing efficiency. Compatible with mineral and synthetic lubricants.

Bidirectional shaft rotation support up to 40 m/s velocity. Pressure resistance up to 0.5 bar ensures sealing stability. Achieves significant friction and heat generation reduction. Replacement for R21 and sometimes R4 seals.

This rotary shaft seal is ideal for use in diverse industrial sectors including aerospace, automotive, railway, fluid power systems, machine tools, manufacturing, and energy production. Its robust design prevents leaks, extends equipment life, and reduces operational costs.

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