Rotary Shaft Seal CORTECO 01026650 68x90x10 NBR B1SL

Applications

The CORTECO 01026650 (68 x 90 x 10 mm) oil seal is a precision-engineered rotary seal designed for demanding automotive and industrial applications. Constructed in a nitrile rubber (NBR) elastomer and configured in B1SL format (which includes a dust lip), this shaft sealing ring offers robust performance for differential shafts, gearbox outputs and rotating assemblies in heavy-duty vehicles and machinery. OEM references include MAN 06562790184, Mercedes-Benz 0079978146 / 0099970546 and New Holland 40002620 / 5105891, which underscores its suitability for high-volume B2B supply chains serving maintenance, fleet and OEM operations. As a technical seal for rotating shafts, this oil seal ensures retention of lubricants and exclusion of contaminants in hydraulics, drivetrain, axle and industrial gear applications requiring high durability and resistance to oils and grease.

Advantages

• High durability and resistance to oils and grease - The NBR material is widely used for oil seals and rotary shaft seals, providing excellent compatibility with engine oils, gear lubricants and grease, thereby reducing failure risk and downtime.

• Dust-lip enhanced design (B1SL) - A secondary lip channel shields the primary sealing lip from external contaminants, making this seal ideal for heavy-duty and industrial environments where ingress of dirt or water could compromise performance.

• Optimised size 68x90x10 mm - The exact inner diameter (68 mm), outer diameter (90 mm) and width (10 mm) align with many differential/axle housings and gearbox outputs, enabling rapid retrofit or production roll-in for B2B procurement.

• Industrial & automotive versatility - With compatibility across major brands and applications, this shaft seal serves both engine seal and transmission/drivetrain use-cases as well as industrial rotating equipment requiring robust sealing solutions.

• Fast availability for B2B - Stocked at our warehouse in Lublin (ul. Smoluchowskiego 1, building 4) and available with 24 h delivery, this oil seal supports just-in-time maintenance operations and reduces equipment downtime.

Technical Data

• Product: Rotary shaft seal / oil seal / shaft sealing ring

• Manufacturer: CORTECO

• Part number: 01026650

• Seal dimensions: Inner diameter (d) = 68 mm, Outer diameter (D) = 90 mm, Width (B) = 10 mm

• Material: NBR (nitrile-butadiene rubber)

• Construction: B1SL (single primary lip + dust lip)

• OEM/vehicle compatibility: MAN 06562790184, Mercedes-Benz 0079978146 / 0099970546, New Holland 40002620 / 5105891

• Application types: Differential shafts, driveline outputs, gearboxes, hydraulic & automotive seals, rotating machinery

• Local stock: Lublin, ul. Smoluchowskiego 1, building 4

• Delivery: 24 h dispatch available

FAQ

Q: What is the difference between a single-lip and a dust-lip (B1SL) oil seal?
A: A single-lip oil seal has only the main sealing lip that contacts the shaft and retains lubricant. A B1SL format adds a secondary dust lip (or protective lip) outside the primary lip. This dust lip acts as an extra barrier against contaminants (e.g., dirt, water, dust) entering the sealing chamber, thus extending the service life of the seal in harsh environments.

Q: Why choose NBR material for a rotary shaft seal?
A: NBR (nitrile-butadiene rubber) provides strong resistance to oils, greases, and many lubricants used in automotive and industrial applications. It is suitably flexible for rotary motion and offers a good balance of cost and performance. For extreme temperatures or aggressive chemicals, other elastomers (e.g., FKM/Viton®) might be chosen.

Q: How can I correctly select the shaft seal size?
A: Verify the inner diameter (matches the shaft), the outer diameter (fits the housing bore) and the width (matches groove or space). Also confirm the correct material, lip configuration (single vs dust lip vs double lip) and application conditions (speed of rotation, temperature, lubricant type). Matching the OEM or reference numbers like those given ensures a proper fit.

Q: Is this seal suitable for industrial machinery as well as automotive use?
A: Yes. While the compatibility list includes MAN, Mercedes-Benz and New Holland, the seal’s construction (68x90x10 mm, NBR B1SL) and high durability design make it suitable for industrial rotating equipment, gearboxes, drivelines or hydraulic systems requiring an oil seal or rotary shaft seal.

Q: Can I get quick delivery for procurement purposes?
A: Absolutely. The product is in stock in our warehouse in Lublin (ul. Smoluchowskiego 1, building 4) and is eligible for 24-hour delivery, supporting B2B clients and service operations that seek minimal downtime and reliable supply.