CORTECO 12014929 NBR BASL 50x80x8 mm - Double-Lip Rotary Shaft Oil Seal

CORTECO 12014929 NBR BASL 50x80x8 mm - Double-Lip Rotary Shaft Oil Seal

CORTECO 12014929 NBR BASL 50x80x8 mm is a double-lip radial rotary shaft seal with a 50 mm inside diameter, 80 mm outside diameter and 8 mm width. Manufactured by CORTECO, this oil seal features NBR (Nitrile Butadiene Rubber) sealing material, a spring-loaded primary sealing lip, an additional dust lip and a rubber-covered metal-reinforced outer case. The BASL construction is designed to retain lubricants and help protect rotating shaft assemblies against external contamination.

Product Characteristics

The CORTECO 12014929 is a radial rotary shaft oil seal designed for mechanical assemblies with rotating shafts.

Its BASL double-lip construction combines lubricant retention with additional protection against dust and other external contaminants.

Key features:

• Manufacturer: CORTECO.

• Product reference: 12014929.

• Nominal dimensions: 50x80x8 mm.

• NBR sealing material.

• BASL double-lip construction.

• Spring-loaded primary sealing lip.

• Additional dust protection lip.

• Rubber-covered outer diameter.

• Metal-reinforced seal case.

• Designed for rotating shaft applications.

Technical Specifications

The exact permissible operating temperature, shaft speed, pressure rating and elastomer hardness must be confirmed using product-specific manufacturer documentation.

What Does CORTECO 12014929 NBR BASL 50x80x8 Mean?

The complete designation identifies the manufacturer, product reference, material, seal profile and nominal dimensions.

CORTECO - the manufacturer's brand.

12014929 - the product identification number.

NBR - Nitrile Butadiene Rubber, a synthetic elastomer commonly used in oil seals.

BASL - a radial shaft seal profile featuring a rubber-covered outer case, a spring-loaded primary sealing lip and an additional dust lip.

50x80x8 mm - nominal seal dimensions:

• 50 mm - inside diameter.

• 80 mm - outside diameter.

• 8 mm - width.

BASL Double-Lip Seal Construction

Primary Sealing Lip

The primary sealing lip operates in contact with the rotating shaft surface.

Its main function is to help retain oil or grease within the sealed mechanical assembly.

The effectiveness of the sealing lip depends on shaft condition, lubrication, temperature, alignment and operating speed.

Garter Spring

The primary sealing lip is supported by a circumferential garter spring.

The spring helps maintain contact between the sealing lip and the shaft during operation.

It is an important component of conventional spring-loaded radial shaft seals.

Additional Dust Lip

The BASL profile includes an additional dust lip designed to reduce the entry of external contaminants into the primary sealing area.

It helps protect against:

• Dust.

• Fine particles.

• General environmental contamination.

The additional lip does not automatically make the seal suitable for continuous immersion or pressurized water exposure.

Rubber-Covered Metal-Reinforced Outer Case

The internal metal reinforcement provides structural rigidity.

The rubber-covered outside diameter forms the sealing interface with the housing bore.

This construction differs from metal-cased oil seals and must be considered when selecting a replacement.

NBR Sealing Material

NBR, or Nitrile Butadiene Rubber, is widely used in industrial and automotive sealing applications.

Typical properties include:

• Good resistance to many mineral oils.

• Compatibility with many mineral-based greases.

• Good mechanical properties.

• Suitability for conventional rotating shaft seals.

• Extensive use in lubricated mechanical assemblies.

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

A universal temperature range should not be assigned to every NBR seal.

Compatibility with particular fuels, solvents, hydraulic fluids and other chemicals must be checked separately.

Typical Applications of a 50x80x8 BASL Oil Seal

BASL radial shaft seals are commonly used in appropriately designed mechanical assemblies, including:

• Industrial gearboxes.

• Speed reducers.

• Mechanical drive systems.

• Agricultural machinery.

• Industrial equipment.

• Rotating shaft assemblies.

• Lubricated mechanisms requiring additional dust protection.

These are general applications of BASL oil seal construction, not a verified list of specific machines compatible with CORTECO 12014929.

CORTECO BASL vs BA and B1KL Oil Seals

Rotary shaft seals with identical dimensions may feature different construction profiles.

CORTECO 12014929 NBR BASL is not automatically interchangeable with CORTECO 12001650 NBR B1KL, even though both have nominal dimensions of 50x80x8 mm.

Differences in case construction and sealing lip geometry may affect installation and sealing performance.

How to Select the Correct CORTECO 12014929 Oil Seal

Before ordering, verify:

1. CORTECO product reference 12014929.

2. Shaft diameter - 50 mm.

3. Housing bore diameter - 80 mm.

4. Seal width - 8 mm.

5. NBR sealing material.

6. BASL construction profile.

7. Additional dust lip requirement.

8. Rubber-covered outer case.

9. Compatibility with the sealing medium.

10. Operating conditions and equipment manufacturer requirements.

When choosing a replacement, compare the complete seal designation rather than relying on dimensions alone.

Installation Guidelines

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

Check for:

• Shaft wear grooves.

• Corrosion.

• Scratches.

• Sharp edges.

• Contamination.

• Excessive shaft runout.

• Bearing play.

Install the seal evenly using an appropriate installation tool.

Mounting force should be applied to the correct area of the seal case, without deforming the housing or damaging the sealing lips.

For conventional oil-retention applications, the primary spring-loaded lip normally faces the lubricant.

The final installation orientation must follow the equipment manufacturer's instructions.

Protect the sealing lips when passing the seal over keyways, splines or sharp shaft edges.

Frequently Asked Questions

What are the dimensions of CORTECO 12014929?

The seal measures 50x80x8 mm, with a 50 mm inside diameter, 80 mm outside diameter and 8 mm width.

What does BASL mean?

BASL identifies a radial rotary shaft seal with a rubber-covered outer case, spring-loaded primary sealing lip and additional dust lip.

Is CORTECO 12014929 a double-lip oil seal?

Yes. The BASL construction includes a primary sealing lip and an additional dust protection lip.

Does this oil seal have a spring?

Yes. The primary sealing lip is supported by a circumferential garter spring.

What material is used?

The sealing material is NBR, or Nitrile Butadiene Rubber.

Is this seal suitable for mineral oil?

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

Can a BA oil seal replace a BASL seal?

Not automatically. A standard BA seal does not include the additional dust lip found in the BASL design.

Are CORTECO 12014929 and 12001650 interchangeable?

Interchangeability cannot be confirmed from dimensions alone. CORTECO 12014929 uses the BASL profile, while CORTECO 12001650 uses B1KL.

Is this seal suitable for dusty environments?

The additional dust lip helps reduce contamination entering the primary sealing area. Suitability depends on the actual operating environment and equipment design.

Can an FKM oil seal replace this NBR version?

Only after verifying dimensional compatibility, sealing profile, chemical resistance and operating requirements.

Does this seal fit a specific machine?

Compatibility should be confirmed using the original part reference, complete seal designation and equipment manufacturer's documentation.

CORTECO 12014929 - Key Technical Information

CORTECO 12014929 is a double-lip radial rotary shaft seal measuring 50x80x8 mm. It features NBR sealing material, a BASL profile, a spring-loaded primary sealing lip, an additional dust lip and a rubber-covered metal-reinforced case. Its construction is intended to retain lubricants and help reduce contamination around rotating shafts.

CORTECO Oil 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.