Rotary Shaft Seal Simrit 30x42x5.7 BAUX2 NBR

Applications

The Simrit 30x42x5.7 BAUX2 NBR rotary shaft seal is a single lip oil seal designed for precise rotary shaft sealing in industrial and automotive applications. The BAUX2 type is used in engines, gearboxes, pumps, auxiliary drives and machinery where low friction, compact design and stable sealing performance are required. This seal is intended for clean or controlled environments where an additional dust lip is not necessary.

Advantages

The single lip construction ensures effective oil sealing with reduced friction and minimized shaft wear. The sealing lip made of NBR (nitrile butadiene rubber) provides reliable resistance to oils and grease, stable elasticity and predictable performance under standard operating conditions. An integrated garter spring maintains constant radial pressure on the shaft, resulting in high durability and consistent sealing efficiency during long-term operation. The slim 5.7 mm width allows installation in applications with limited axial space.

Technical Data

• Size: 30x42x5.7 mm

• Type: BAUX2 - single lip oil seal

• Sealing material: NBR (nitrile rubber)

• Design: spring-loaded sealing lip, compact construction

• Function: radial technical sealing of rotating shafts

Main Description

The Rotary Shaft Seal Simrit 30x42x5.7 BAUX2 NBR is a professional shaft sealing solution developed for reliable operation in industrial and automotive systems. As a single lip rotary oil seal, it effectively retains lubricants while maintaining low friction levels, supporting efficient and stable machine performance.

The NBR sealing material offers proven resistance to mineral oils and greases, making this shaft sealing ring suitable for a wide range of industrial applications. The precisely engineered lip profile, supported by a garter spring, ensures uniform contact pressure on the shaft, reducing leakage risk and limiting wear of mating surfaces. The compact design allows easy integration in assemblies with restricted installation space.

With standard dimensions of 30x42x5.7 mm, this oil seal is commonly used in OEM production, maintenance and service operations. It meets the expectations of B2B customers seeking durable, repeatable and technically proven rotary sealing solutions for machinery and drive systems operating under controlled conditions.

FAQ

What is the difference between single and double lip oil seals?
Single lip seals retain lubricant, while double lip seals include an additional dust lip for contamination protection.

Where is the BAUX2 rotary shaft seal typically used?
In engines, gearboxes, pumps and machinery operating in clean environments.

What media is NBR resistant to?
NBR provides good resistance to oils, greases and standard industrial fluids.

Is this seal suitable for continuous operation?
Yes, it is designed for long-term continuous use under standard industrial conditions.

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