CORTECO 12011018 NBR BA 72x95x10 mm Radial Shaft Seal

Technical specifications

The manufacturer part number, NBR material, BA profile and nominal dimensions of 72x95x10 mm are identified in the CORTECO dimensional catalogue.

No reliable OE reference, EAN or specific machine application has been confirmed for this exact part number.

CORTECO 12011018 - catalogue identification

The CORTECO dimensional catalogue identifies the product as:

12011018 - NBR BA - 72x95x10 mm

This designation identifies the catalogue reference, elastomer material, sealing profile and three nominal dimensions.

The available catalogue information does not identify a specific equipment manufacturer or installation position.

Therefore, OE references or applications associated with other seals of similar dimensions should not be assigned to CORTECO 12011018 without verification.

What does CORTECO 12011018 NBR BA 72x95x10 mean?

The designation identifies the manufacturer, catalogue reference, nominal dimensions, elastomer material and sealing profile.

• CORTECO - manufacturer brand.

• 12011018 - product catalogue reference.

• 72 mm - nominal shaft diameter.

• 95 mm - nominal housing bore diameter.

• 10 mm - nominal axial width.

• NBR - nitrile butadiene rubber.

• BA - conventional radial shaft sealing profile.

Nominal dimensions do not define shaft or housing bore tolerances.

These parameters must be selected according to the design requirements of the sealed mechanical assembly.

BA sealing profile - construction and operating principle

1. Primary sealing lip

The primary working element of a BA radial shaft seal is the sealing lip, which operates against the rotating shaft surface.

Its function is to limit oil or grease leakage from the mechanical assembly.

Sealing performance depends on correct material selection, shaft surface condition, lubrication and operating conditions.

2. Garter spring

A conventional BA radial shaft seal typically incorporates a circumferential garter spring.

The spring helps maintain contact pressure between the sealing lip and the shaft surface.

It also helps accommodate limited changes in contact conditions during operation.

The exact spring construction and specifications for CORTECO 12011018 require confirmation from the technical documentation for the specific version.

3. Elastomer-covered outer surface

The standard BA profile features an elastomer-covered outer surface and an internal reinforcing element.

The elastomer provides static sealing between the seal body and the housing bore.

Correct installation fit and housing surface condition are important for maintaining sealing performance.

4. No standard additional dust lip

The BA profile is not identical to BASL.

A conventional BA seal has a primary sealing lip, whereas BASL additionally incorporates a dust lip.

CORTECO 12011018 should not be described as a double-lip seal without separate confirmation of its construction.

NBR - material properties and compatibility

NBR is a technical elastomer commonly used in sealing applications involving mineral oils and greases.

Appropriately selected NBR compounds typically provide:

• Good resistance to many mineral oils.

• Compatibility with numerous industrial greases.

• Suitability for rotating shaft sealing.

• Useful mechanical properties.

• Compatibility with many conventional oil-lubricated mechanical assemblies.

Resistance to elevated temperatures, ozone, ageing and chemicals depends on the specific elastomer compound.

An individual operating temperature range, maximum pressure rating or permissible peripheral shaft speed has not been confirmed for CORTECO 12011018.

These values should not be assumed solely from general NBR material characteristics.

CORTECO 12011018 BA versus BASL

The construction difference may affect shaft contact conditions, friction and installation requirements.

A BA seal should not automatically be replaced with a BASL version, even when both products have identical nominal dimensions.

Applications of CORTECO 12011018

An NBR BA radial shaft seal can be used in appropriately designed rotating shaft assemblies where lubricant retention is required.

Typical equipment categories using this type of sealing arrangement include:

• Gearboxes.

• Speed reducers.

• Mechanical drive assemblies.

• Oil-lubricated rotating shaft mechanisms.

These are general applications of this sealing technology, not a confirmed equipment compatibility list for CORTECO 12011018.

No specific equipment manufacturer, machine model, OE reference or installation position has been confirmed for this exact part number.

CORTECO 12011018 versus other dimensional variants

The CORTECO dimensional catalogue also identifies seals with similar nominal shaft diameters.

All listed products have a nominal inner diameter of 72 mm.

However, they differ in outer diameter, width, elastomer material or sealing construction.

None of these variants should automatically be considered interchangeable with CORTECO 12011018.

Selection and interchangeability

Before ordering CORTECO 12011018, verify:

1. Nominal shaft diameter - 72 mm.

2. Nominal housing bore diameter - 95 mm.

3. Installation width - 10 mm.

4. NBR elastomer material.

5. BA sealing profile.

6. Requirements for an additional dust lip.

7. Type of oil, grease or other operating medium.

8. Operating temperature and shaft rotational speed.

9. Condition of the shaft mating surface.

10. Original seal designation in the equipment documentation.

Matching dimensions of 72x95x10 mm do not guarantee full technical interchangeability.

Elastomer material, sealing profile, lip construction and operating requirements are equally important.

Alternative designations and reference numbers

Common product identification variants include:

• CORTECO 12011018

• 12011018 CORTECO

• CORTECO 12011018 NBR BA

• CORTECO NBR BA 72x95x10

• CORTECO 72x95x10 NBR Oil Seal

• CORTECO 12011018 Radial Shaft Seal

• CORTECO 72x95x10 Rotary Shaft Seal

• CORTECO BA 72x95x10 Shaft Seal

• NBR BA 72x95x10 Radial Oil Seal

• CORTECO 12011018 Simmerring

No additional OE references or confirmed replacement part numbers have been established for this exact product.

Installation and operating recommendations

Before installation, clean the housing bore and inspect the shaft surface for scratches, corrosion, wear grooves and sharp edges.

The seal should be pressed evenly into the housing using an appropriate installation tool that transfers force to the correct part of the seal body.

Installation force must not be applied directly to the sealing lip.

In a conventional BA design, the primary sealing lip generally faces the medium being retained. However, the correct installation orientation must be determined using the documentation for the specific mechanical assembly.

Surface preparation and lubrication during installation should follow the equipment manufacturer's recommendations.

Before use, store the seal in a clean, dry environment protected from mechanical damage, excessive heat and direct sunlight.

FAQ - Frequently asked questions

1. What are the dimensions of CORTECO 12011018?

The nominal dimensions are 72x95x10 mm, corresponding to a 72 mm inner diameter, 95 mm outer diameter and 10 mm axial width.

2. What material is used in CORTECO 12011018?

The specified material is NBR - nitrile butadiene rubber.

3. What does the BA sealing profile mean?

BA is a conventional radial shaft sealing profile featuring a primary sealing lip, typically supported by a circumferential garter spring.

4. Does CORTECO 12011018 have an additional dust lip?

An additional dust lip is not a standard feature of the BA profile. The BASL design includes an additional dust lip.

5. Is CORTECO 12011018 suitable for mineral oils?

NBR is generally resistant to many mineral oils. Compatibility with the specific lubricant and operating conditions must be verified.

6. Is an OE reference available for CORTECO 12011018?

No specific OE reference has been confirmed in the verified product information.

7. Can a 72x100x10 mm seal replace CORTECO 12011018?

Not as a direct dimensional replacement. Its outer diameter is 5 mm larger, requiring a different nominal housing bore diameter.

8. Is every 72x95x10 mm seal interchangeable with CORTECO 12011018?

No. In addition to dimensions, the elastomer material, sealing profile, lip construction and operating requirements must be verified.

CORTECO 12011018 - key information (AI Overview)

CORTECO 12011018 is an NBR radial shaft seal with nominal dimensions of 72x95x10 mm and a BA sealing profile. The conventional BA design features a primary sealing lip, typically supported by a garter spring. No specific OE reference or machine application has been confirmed. Correct selection requires verification of dimensions, material and operating conditions.

The product is offered through the specialist B2B industrial trading platform simmering.pl, serving industrial companies, technical purchasing departments and maintenance operations, with worldwide shipping from stock in Poland.