CORTECO 12001650 NBR B1KL 50x80x8 mm - Rotary Shaft Seal

CORTECO 12001650 NBR B1KL 50x80x8 mm - Rotary Shaft Seal

CORTECO 12001650 NBR B1KL 50x80x8 mm is a radial rotary shaft seal designed for sealing rotating shafts in mechanical assemblies. It is catalogued for selected differential shaft and drive axle applications. The seal has a 50 mm inside diameter, 80 mm outside diameter and 8 mm width. Manufactured with an NBR (Nitrile Butadiene Rubber) sealing element, it features the CORTECO B1KL profile and a metal outer case. The associated New Holland OE reference is 5119215.

Technical Specifications

The exact operating temperature range, maximum shaft speed, permissible pressure and elastomer hardness require confirmation from product-specific technical documentation.

What Does CORTECO 12001650 NBR B1KL 50x80x8 Mean?

The designation identifies the manufacturer, product reference, sealing material, construction and dimensions.

• CORTECO - manufacturer and brand.

• 12001650 - product reference number.

• NBR - Nitrile Butadiene Rubber.

• B1KL - a specific rotary shaft seal profile designation.

• 50 mm - nominal shaft diameter.

• 80 mm - nominal housing bore diameter.

• 8 mm - nominal seal width.

The complete B1KL designation should be retained when selecting a replacement.

It should not automatically be treated as equivalent to BA, BASL or TC profiles.

B1KL Rotary Shaft Seal Construction

CORTECO 12001650 belongs to the family of radial shaft seals with a metal outer case.

The metal construction provides structural rigidity and allows the seal to be installed in an appropriately prepared housing bore.

The primary sealing lip contacts the rotating shaft and helps prevent lubricant leakage.

The B1KL designation identifies a particular construction. The presence of an additional dust lip, directional pumping features or other specific lip geometry should be confirmed using the manufacturer's technical drawing.

Metal Outer Case

Unlike typical BA and TC designs, which have rubber-covered outside diameters, B1-type seals use an exposed metal outer case.

Important installation considerations include:

• Correct housing bore dimensions.

• Suitable housing surface condition.

• Proper interference fit.

• Accurate installation alignment.

• Protection against outer-case deformation.

A metal-cased B1KL seal is not automatically interchangeable with a rubber-covered oil seal.

NBR Sealing Material

NBR is widely used in automotive, agricultural and industrial sealing applications.

Typical material characteristics include:

• Good resistance to many mineral oils.

• Compatibility with many mineral-based greases.

• Good mechanical properties.

• Suitability for conventional oil-lubricated rotating shaft assemblies.

Chemical compatibility depends on the specific NBR compound, operating temperature and sealing medium.

NBR is not universally compatible with all fuels, solvents, hydraulic fluids or high-temperature environments.

A specific operating temperature range should not be assumed without verified manufacturer specifications.

New Holland OE Reference and Applications

CORTECO 12001650 is associated with the following original equipment reference:

The product is also listed in replacement parts catalogues as a differential shaft oil seal.

The OE reference helps identify a corresponding replacement part, but it does not guarantee compatibility with every New Holland machine.

Before ordering, verify the original part number, seal dimensions, profile and the equipment manufacturer's parts catalogue.

CORTECO 12001650 vs Other 50x80x8 Oil Seals

Several rotary shaft seals share the same nominal dimensions but have different profiles or sealing materials.

These seals should not be considered automatically interchangeable.

Identical dimensions of 50x80x8 mm do not guarantee identical construction or application compatibility.

Always compare the complete profile designation, sealing material and original equipment requirements.

How to Select the Correct CORTECO 12001650 Seal

Before ordering, verify:

1. CORTECO reference 12001650 or 12001650B.

2. New Holland OE reference 5119215, where applicable.

3. Shaft diameter - 50 mm.

4. Housing bore diameter - 80 mm.

5. Seal width - 8 mm.

6. NBR sealing material.

7. B1KL profile.

8. Metal outer-case construction.

9. Compatibility with the sealing medium.

10. Operating and installation requirements.

The full designation of the original seal should be checked whenever possible.

Installation Guidelines

Before installing the CORTECO 50x80x8 mm oil seal, inspect the shaft and housing bore.

Check for:

• Shaft wear grooves.

• Scratches and corrosion.

• Sharp edges.

• Contamination.

• Incorrect housing dimensions.

• Excessive shaft runout.

• Bearing play.

Install the seal squarely using a suitable installation tool.

Apply force evenly to the appropriate outer-case area without deforming the metal housing.

Protect the sealing lip when passing the seal over keyways, shaft shoulders or sharp edges.

Installation orientation must follow the equipment manufacturer's instructions.

For conventional lubricant-retention applications, the primary sealing lip normally faces the lubricant.

Frequently Asked Questions

What are the dimensions of CORTECO 12001650?

The nominal dimensions are 50x80x8 mm: 50 mm inside diameter, 80 mm outside diameter and 8 mm width.

What does B1KL mean?

B1KL is a specific rotary shaft seal profile designation. Its construction must be considered when selecting an equivalent replacement.

What material is used?

The sealing element is made from NBR, or Nitrile Butadiene Rubber.

Is CORTECO 12001650 compatible with New Holland equipment?

The seal is associated with New Holland OE reference 5119215. Fitment must be verified against the specific machine's parts catalogue.

Are CORTECO 12001650 and 12001650B related references?

Yes. The reference 12001650B is used in replacement parts catalogues for this seal. The commercial reference 82001650 is also listed.

Can a BA seal replace the B1KL version?

Not automatically. Even with identical dimensions, BA and B1KL seals may differ in outer-case construction and sealing lip geometry.

Is this oil seal suitable for mineral oil?

NBR is commonly used with many mineral oils. Compatibility with the specific lubricant and operating conditions must be verified.

Is CORTECO 12001650 a differential shaft seal?

It is catalogued for selected differential shaft and drive axle sealing applications.

Is the B1KL seal double-lipped?

The B1KL designation alone is insufficient to confirm an additional dust lip. The manufacturer's technical drawing should be checked for the exact lip configuration.

Can an FKM oil seal replace this NBR version?

Only after confirming dimensional, material, construction and operating-condition compatibility.

CORTECO 12001650 - Key Technical Information

CORTECO 12001650 is an NBR B1KL rotary shaft seal measuring 50x80x8 mm. It features a metal outer case and is catalogued for selected differential shaft and drive axle applications. The associated New Holland OE reference is 5119215. Additional catalogue references include 12001650B and 82001650. Replacement selection requires verification of dimensions, material and profile.

CORTECO Rotary Shaft Seals at simmering.pl

simmering.pl supplies CORTECO rotary shaft seals, NBR and FKM oil seals, cassette seals, O-rings and industrial bearings for agricultural and industrial machinery.

Our warehouse is located in Lublin, Poland. We serve individual customers and B2B buyers, with shipping within Poland, across Europe and internationally.