Rotary Shaft Seal CORTECO 19019084 55 x 78 x 12 mm (NBR SB2Y)

 Applications of the Seal

The CORTECO 19019084 is a precision engineered rotary shaft seal designed for demanding industrial and automotive applications. With internal diameter 55 mm, external diameter 78 mm and width 12 mm, this oil seal (shaft sealing ring) crafted in nitrile rubber (NBR) in SB2Y double lip configuration ensures reliable performance as a technical seal in rotating machinery. It is especially suited as an engine seal or transmission seal for vehicles such as MAZDA models using OEM number 9958555782, and is equally applicable in hydraulic and automotive seals, drive-trains, gearboxes, pumps and industrial equipment where a high durability, rotary seal is required. As a shaft seal it prevents lubricant loss and ingress of contaminants in applications involving rotating shafts and housings.

Key Advantages

• High durability and resistance to oils and grease: The nitrile rubber (NBR) material exhibits excellent compatibility with mineral oils, engine lubricants and greases, making it ideal for oil seal applications in automotive and industrial equipment.

• Double-lip oil seal design (SB2Y): The dual sealing lips enhance performance of the rotary seal by providing a primary lip for lubricant retention and a secondary lip for dust and contamination exclusion, thus increasing service life and ensuring reliable sealing in harsh conditions.

• Optimised size 55x78x12 mm: The exact dimensional specification allows for straightforward replacement or upgrade in engine, transmission or industrial shaft assemblies aligned with the OEM number MAZDA 9958555782.

• Industrial-grade technical seal: Crafted for industrial applications, this shaft sealing ring suits both production-line procurement and maintenance departments. Suitable for rotating machinery, engine compartments, transmissions and hydraulic systems.

• Fast availability for B2B clients: From our warehouse in Lublin, ul. Smoluchowskiego 1, building 4, we offer 24h delivery - ensuring minimal downtime when replacing worn or failed rotary shaft seals in your machines or vehicles.

Technical Data

• Product: Shaft seal / oil seal / rotary shaft seal

• Manufacturer: CORTECO

• Part number: 19019084 (alternate reference: 82819084)

• OEM reference: MAZDA 9958555782

• Dimensions: Inner diameter (d) = 55 mm, Outer diameter (D) = 78 mm, Width (B) = 12 mm

• Material: NBR (nitrile-butadiene rubber)

• Seal design: SB2Y - double lip seal configuration

• Functions: Lubricant retention, contaminant exclusion, shaft sealing ring in automotive & industrial equipment

• Applications: Engine seal, transmission seal, pump shaft seal, gearbox seal, hydraulic equipment

• Warehouse: Lublin, ul. Smoluchowskiego 1, building 4

• Delivery: 24h shipping within Poland

FAQ

Q: What is the difference between a single-lip and a double-lip oil seal?
A: A single-lip oil seal (single lip seal) features one principal sealing lip contacting the shaft and retains lubricant. A double-lip oil seal, such as SB2Y, includes an additional secondary lip—this enhances protection by excluding dust and external contaminants and often extends service life in harsh rotating applications.

Q: Why choose NBR material for a rotary seal?
A: NBR (nitrile-butadiene rubber) offers strong resistance to mineral oils, engine lubricants and grease, and is widely used in oil seals for automotive and industrial applications. It suits moderate temperature and standard rotation speeds; for extreme temperatures or aggressive fluids specialised materials may be preferred.

Q: How do I correctly select a shaft seal size?
A: Ensure you match the inner diameter (shaft size), outer diameter (housing bore) and width (groove width) exactly. Also check material compatibility, seal design (single vs double‐lip), rotating speed, shaft surface finish and operating temperature/pressure.

Q: Can this seal be used for industrial machinery as well as automotive?
A: Yes. Although the OEM reference MAZDA 9958555782 is automotive, the dimension and material allow this rotary shaft seal to function as a technical seal in industrial machinery, gearboxes, hydraulic pumps, and other rotating equipment requiring a durable oil seal.

Q: Is next-day delivery available?
A: Yes. The product is stocked at our warehouse in Lublin (ul. Smoluchowskiego 1, building 4) and is ready for 24h dispatch, supporting B2B clients who require rapid replacement of shaft sealing rings.