CORTECO 12010855 NBR BA 25x42x10 Rotary Shaft Oil Seal

Premium NBR Rotary Shaft Oil Seal for Agricultural and Motorcycle Applications

The CORTECO 12010855 is a premium rotary shaft oil seal with dimensions 25 × 42 × 10 mm, manufactured from NBR (Nitrile Butadiene Rubber). Designed with the BA sealing profile, it features a spring-loaded primary sealing lip and an auxiliary dust lip to provide reliable sealing of rotating shafts while protecting against lubricant leakage, dust and external contaminants. This oil seal replaces Massey Ferguson OEM 1441027M1 and Minarelli OEM 5370039000, making it suitable for agricultural machinery, motorcycle engines and drivetrain systems.

Technical Specifications

OEM Cross Reference

Massey Ferguson

• 1441027M1

Minarelli

• 5370039000

Product Description

The CORTECO 12010855 NBR BA rotary shaft oil seal is designed to provide dependable sealing performance for rotating shafts operating in oil-lubricated systems. The spring-loaded primary sealing lip maintains constant contact with the shaft surface, effectively minimizing lubricant leakage, while the auxiliary dust lip prevents dust, dirt and moisture from entering the sealing area.

Manufactured from NBR (Nitrile Butadiene Rubber), the seal offers excellent compatibility with mineral oils, greases and standard lubricants. Its high wear resistance and elasticity ensure reliable sealing performance and long service life in demanding automotive, agricultural and industrial applications.

As an original CORTECO product, this oil seal delivers OEM-quality performance and precision manufacturing for professional repair and maintenance.

Key Features

• Original CORTECO OEM quality
• High-quality NBR compound
• BA sealing profile
• Spring-loaded primary sealing lip
• Auxiliary dust lip
• Excellent resistance to mineral oils
• High wear resistance
• Long service life
• Precision manufactured
• Ready for professional installation

Typical Applications

The CORTECO 12010855 oil seal is commonly used in:

• Agricultural machinery
• Massey Ferguson equipment
• Minarelli engines
• Motorcycle engines
• Gearboxes
• Transmission systems
• Rotating shafts
• Industrial machinery
• OEM manufacturing
• Maintenance and repair (MRO)

Seal selection should always comply with the equipment manufacturer's engineering specifications.

Why Choose NBR?

NBR (Nitrile Butadiene Rubber) is one of the most widely used sealing materials in the automotive and industrial sectors. It provides excellent resistance to mineral oils, greases and many standard lubricants while maintaining high elasticity and wear resistance. These characteristics make NBR an ideal material for conventional rotary shaft sealing applications.

FAQ

What are the seal dimensions?

The seal measures 25 × 42 × 10 mm.

What material is used?

It is manufactured from NBR (Nitrile Butadiene Rubber).

What does the BA profile mean?

The BA profile features a spring-loaded primary sealing lip and an auxiliary dust lip, providing reliable oil retention and protection against external contaminants.

Does the seal include a garter spring?

Yes. The primary sealing lip is fitted with a garter spring to maintain constant sealing pressure on the shaft.

Which OEM numbers does this seal replace?

It replaces Massey Ferguson OEM 1441027M1 and Minarelli OEM 5370039000.

Where is this oil seal commonly used?

It is typically installed in Massey Ferguson agricultural machinery, Minarelli engines, motorcycle transmissions and other rotating shaft applications requiring a 25×42×10 mm oil seal.