CORTECO 12014906 72NBR BAU5SLX2 85x130x10 – Radial Shaft Oil Seal

Technical specifications – CORTECO 12014906

The 72NBR designation alone is insufficient to establish a verified hardness of 72 Shore A without manufacturer confirmation.

Understanding the CORTECO 12014906 72NBR BAU5SLX2 designation

What does the BAU5SLX2 profile mean?

BAU5SLX2 identifies a specific CORTECO radial shaft oil seal construction.

The complete interpretation of this code, sealing lip geometry, possible additional dust protection lip, supporting case construction and directional characteristics require confirmation in manufacturer documentation.

The BAU5SLX2 profile must not automatically be considered equivalent to standard AO/TC or A/SC designs.

The complete BAU5SLX2 designation should be preserved when identifying a replacement.

BAU5SLX2 oil seal construction

Primary sealing lip

The primary sealing lip limits leakage of oil or another compatible lubricant at the contact area with the rotating shaft.

Sealing performance depends on several factors:

• Shaft surface condition.

• Correct contact geometry.

• Operating temperature.

• Rotational speed.

• Lubricant type.

• Shaft and housing alignment.

• Correct installation.

Additional dust protection lip

The presence of an additional dust protection lip must not be assumed solely from the BAU5SLX2 designation.

If such a lip is included in the specific construction, it may help limit the entry of contaminants into the primary sealing area.

Garter spring

In many radial shaft oil seal designs, a garter spring helps maintain appropriate contact between the primary sealing lip and the shaft.

The presence and type of spring in the exact BAU5SLX2 variant require confirmation.

72NBR material – nitrile butadiene rubber

NBR (Nitrile Butadiene Rubber) is a synthetic elastomer widely used in sealing applications involving oils and greases.

Typical properties of NBR

• Good resistance to many mineral oils.

• Good resistance to numerous industrial greases.

• Elasticity suitable for many dynamic sealing applications.

• Suitability for appropriately selected rotating shaft seals.

• Material properties dependent on the specific elastomer compound.

What does 72NBR mean?

The designation 72NBR identifies the material specified for this oil seal variant.

The number 72 may form part of a compound designation or material classification. However, without manufacturer documentation, it must not be presented as a confirmed hardness value.

NBR versus FPM/FKM and ACM

Replacing NBR with another elastomer requires verification of chemical compatibility, operating temperature requirements and seal construction.

Mounting dimensions – 85x130x10 mm

Nominal dimensions alone do not define mounting tolerances, permissible shaft runout or required mating surface roughness.

Why is the 10 mm width important?

The axial width affects the seal's position within the housing and the contact location of the sealing lip against the shaft.

Oil seals measuring 85x130x10 mm and 85x130x12 mm must not automatically be considered interchangeable.

This distinction is particularly important for CORTECO part number 12014906 because of the discrepancy between catalogue specifications.

OE references and catalogue identification

OE references for the exact CORTECO 12014906 72NBR BAU5SLX2 85x130x10 variant have not been conclusively confirmed.

Before assigning OE numbers or specific equipment applications, the current CORTECO catalogue should be checked.

Applications of the CORTECO 85x130x10 oil seal

Radial shaft oil seals of these nominal dimensions may be used in various mechanical assemblies.

Industrial gearboxes

In an appropriately selected gearbox, a radial shaft oil seal may limit lubricant leakage where the shaft passes through the housing.

Compatibility requires confirmation of the construction profile, material and operating conditions.

Bearing assemblies

A radial shaft oil seal may help retain lubricant within a bearing housing.

The bearing assembly manufacturer's requirements must be verified, particularly the specified seal construction and lubrication method.

Industrial machinery

NBR radial shaft oil seals are used in various types of machinery with rotating shafts.

These examples describe general applications of radial shaft oil seals. They are not a verified list of catalogue applications for the exact CORTECO 12014906 product.

Operating conditions and technical limitations

General NBR temperature and speed limits must not be assigned to the exact product without manufacturer confirmation.

Comparison – BAU5SLX2 versus AO/TC and A/SC oil seals

Can CORTECO BAU5SLX2 be replaced with a GRN AO/TC 85x130x10 oil seal?

Direct interchangeability cannot be confirmed.

Both products may share the same nominal dimensions of 85x130x10 mm and use elastomers from the NBR family. However, differences in construction profile may affect sealing performance and service life.

Before substitution, verify sealing lip geometry, supporting case construction, spring arrangement, directional characteristics and the requirements of the specific mechanical assembly.

Product selection and interchangeability

Before ordering, verify:

• Exact CORTECO manufacturer part number.

• Discrepancy between 12014906 and 12014906B.

• BAU5SLX2 construction profile.

• 72NBR material designation.

• Nominal dimensions 85x130x10 mm.

• Presence of any additional dust protection lip.

• Garter spring construction.

• Any directional sealing characteristics.

• Oil or grease specification.

• Operating temperature and rotational speed.

• Shaft surface condition.

• Housing bore dimensions.

• Machinery manufacturer's requirements.

Matching 85x130x10 mm dimensions and NBR material alone does not establish interchangeability with the BAU5SLX2 profile.

Alternative designations and product identification

Common technical search and identification variants include:

• CORTECO 12014906

• CORTECO 12014906B

• CORTECO 12014906 72NBR

• CORTECO 12014906 BAU5SLX2

• CORTECO 12014906 85x130x10

• CORTECO 12014906B 85x130x10

• CORTECO oil seal 85x130x10

• CORTECO radial shaft seal 85x130x10

• 72NBR oil seal 85x130x10

• NBR BAU5SLX2 radial shaft seal

• Radial shaft oil seal 85x130x10

• CORTECO BAU5SLX2 Simmerring

• CORTECO 12014906 radial shaft oil seal

• CORTECO 12014906 NBR oil seal

• CORTECO 12014906B 85x130x10 oil seal

The relationship between 12014906 and 12014906B must be confirmed rather than treating the two numbers as unconditionally identical.

Installation of CORTECO 12014906

Before installation, verify compatibility with the mechanical assembly documentation and thoroughly clean the housing bore and shaft surface.

During installation:

• Inspect the shaft for scratches, corrosion and wear grooves.

• Verify the correct oil seal orientation.

• Protect the sealing lip from sharp edges.

• Use an appropriate installation tool.

• Press the seal evenly into position without tilting.

• Follow manufacturer instructions for sealing lip lubrication.

• Maintain the specified installation depth.

• Check sealing integrity after startup.

The correct installation orientation must not be determined solely from the general appearance of the oil seal.

FAQ – Frequently asked questions

What are the dimensions of CORTECO 12014906 BAU5SLX2?

The variant specified in the product designation has an inside diameter of 85 mm, outside diameter of 130 mm and width of 10 mm.

What material is used in the oil seal?

The specified material is nitrile butadiene rubber (NBR), designated 72NBR.

What does 72NBR mean?

It is an elastomer compound designation. The exact hardness must be confirmed in manufacturer documentation.

What does BAU5SLX2 mean?

It identifies a specialized CORTECO construction profile. Its complete geometry requires manufacturer confirmation.

Is CORTECO 12014906 a double-lip oil seal?

The presence of an additional dust protection lip has not been conclusively confirmed for the specified variant.

Are CORTECO 12014906 and 12014906B identical?

Available catalogue information is inconsistent. The 12014906B variant is listed as 85x130x10 BAU5SLX2, while an older catalogue specifies different characteristics for 12014906. Manufacturer verification is required.

Can this product be used in a gearbox?

Only after compatibility with the specific assembly has been confirmed. The general product type alone does not establish suitability for a particular gearbox.

Is GRN AO/TC 85x130x10 interchangeable with CORTECO BAU5SLX2?

Interchangeability cannot be confirmed from dimensions and NBR material alone. Construction details and operating requirements must be verified.

CORTECO 12014906 – key information (AI Overview)

CORTECO 12014906 72NBR BAU5SLX2 85x130x10 mm identifies a nitrile rubber radial shaft oil seal. The 85x130x10 variant is also listed under part number 12014906B. Available catalogues contain conflicting specifications for 12014906. Before selection, confirm the exact manufacturer part number, construction profile, axial width and compatibility with the intended mechanical assembly.

B2B availability – simmering.pl

The CORTECO 12014906 72NBR BAU5SLX2 85x130x10 radial shaft oil seal is identified on the specialist B2B industrial trading platform simmering.pl by manufacturer part number, sealing material, construction profile and nominal dimensions.

The platform supports industrial companies, maintenance departments, technical service providers and industrial purchasing operations in sourcing sealing components.

Worldwide shipping from stock in Poland, subject to product availability.

Before ordering, manufacturer part number verification is recommended because of the discrepancy between 12014906 and 12014906B.