CORTECO 01030113 NEM BASFX2 26x38x8 mm - Rotary Shaft Oil Seal

Applications

The CORTECO 01030113 NEM BASFX2 oil seal, measuring 26 mm inner diameter x 38 mm outer diameter x 8 mm width, is a high-precision rotary shaft seal designed for demanding industrial and automotive applications. Manufactured with a BASFX2 design and HNBR (hydrogenated nitrile butadiene rubber) material, this oil seal and shaft sealing ring is well suited for lubricated rotating assemblies, bearing housings, and mechanical drive systems where leakage prevention, durability and operational reliability are critical.

Engineered for OEM compatibility with Mercedes‑Benz (OE reference 0239973847), it is utilized in engine, pump and gearbox systems requiring robust technical seals, rotary oil seals and high-durability sealing solutions. In industrial applications—from assembly lines to heavy duty drive units—this oil seal ensures reliable performance under oil, grease and dynamic conditions.

Advantages

• Material HNBR: The hydrogenated nitrile butadiene rubber compound offers superior resistance to oils and grease, high temperature stability and extended service life compared to standard elastomers.

• Precise dimensions 26x38x8 mm: Enables direct replacement in standard bearing housings and installation kits without modification, supporting fast maintenance and retrofits.

• Optimised design for rotary assemblies: The BASFX2 profile and sealing geometry provide efficient containment of lubrication, effective exclusion of contaminants and minimal friction—making it suitable for high-speed shafts.

• Industrial-grade durability: Designed with industrial applications in mind, this seal offers long operational intervals, reduced maintenance and high reliability in shaft sealing units and bearing housings.

• OEM reference alignment: With part compatibility to OE 0239973847, purchasing departments and maintenance teams can confidently select this rotary shaft oil seal for Mercedes-Benz applications as well as other compatible systems.

Technical Data

• Model: CORTECO 01030113 NEM BASFX2

• Type: Rotary shaft oil seal / shaft sealing ring

• Dimensions: Inner diameter (d) = 26 mm · Outer diameter (D) = 38 mm · Width (B) = 8 mm

• Material: HNBR (hydrogenated nitrile butadiene rubber)

• Design style: BASFX2 (double-lip profile typical for rotary applications)

• OEM reference: Mercedes-Benz 0239973847

• Application scope: Engine seals, pump shafts, gearbox output shafts, bearing housings, industrial drive assemblies

• Key features: High durability, oil & grease resistance, rotary seal performance, bearing housing compatibility

Main Description

The CORTECO 01030113 NEM BASFX2 26x38x8 mm oil seal represents a premium sealing solution for both automotive and industrial sectors. As a rotary oil seal, it is crafted to protect rotating shafts and bearing units against fluid leakage and contaminant ingress, thereby extending the life of components such as bearings, shafts and gearboxes.

Constructed using HNBR - a high-performance elastomer - this seal performs exceptionally in environments exposed to oils, greases, elevated temperatures and dynamic motion. Its double-lip BASFX2 design ensures a tight seal in rotary assemblies, facilitating minimal friction and reliable lubrication retention. The standard size 26x38x8 mm allows straightforward integration into bearing housings and units, saving installation time and enabling seamless replacement for maintenance operations.

For mechanical engineers, procurement specialists and maintenance professionals, this oil seal offers a technically robust choice when specifying seals for industrial applications, engine sealing, and shaft sealing components. Whether for use in a bearing housing on an automated production line or as part of a drivetrain in a Mercedes-Benz engine environment, this seal delivers consistent performance, reduced downtime and long-term durability.

By selecting this rotary shaft seal with its combination of accurate dimensions, high-end material and design profile, one secures a reliable component aimed at demanding systems requiring high durability, efficient sealing and compatibility with standard assemblies.

FAQ

Q1: What is the difference between a single lip and double lip oil seal?
A1: A single-lip oil seal uses one sealing edge to retain fluid, suitable for moderate conditions. A double-lip (such as BASFX2) has two sealing edges—one retaining fluid and the other excluding contaminants—offering enhanced protection in more demanding rotary or contaminated environments.
Q2: Which material is best for high oil and grease resistance?
A2: HNBR (hydrogenated nitrile butadiene rubber) provides superior resistance to oils, greases and elevated temperatures compared to standard NBR or silicone, making it ideal for industrial and engine seals.
Q3: How do I select the correct shaft seal size?
A3: Measure the shaft diameter (inner seal diameter) and the housing bore (outer seal diameter), as well as the width required. For example here: 26 mm ID, 38 mm OD and 8 mm width. Then select the correct design profile (single or double lip) and material based on application condition.
Q4: Can this seal be used in gearboxes and bearing housings?
A4: Yes - as a rotary seal and oil seal, this product is suitable for bearing housings, gearboxes, engine output shafts and other mechanical units where shaft; sealing and fluid retention are required.
Q5: Is this seal compatible with Mercedes-Benz applications?
A5: Yes - the part is referenced to OEM number 0239973847 for Mercedes-Benz, ensuring correct fit and application specification in relevant vehicle and systems.