CORTECO 12000556B 120x140x13 NBR BASL Simmerring® Radial Shaft Seal

CORTECO 12000556B 120x140x13 NBR BASL Simmerring® Radial Shaft Seal

CORTECO 12000556B is a Simmerring® radial shaft seal with nominal dimensions 120x140x13 mm, manufactured from NBR and identified by the BASL Simmerring designation. Current catalogue data identifies this reference as a wheel hub shaft seal for rear axle installation. The construction incorporates an auxiliary dust lip.

The older product reference is 12000556. Additional identifiers are Trade No. 82000556 and EAN 3358960142283.

Complete product identification:

CORTECO + 12000556B + 120x140x13 + NBR + BASL Simmerring + 82000556

CORTECO 12000556B – Technical Characteristics

CORTECO 12000556B Dimensions

The confirmed nominal dimensions are:

d: 120 mm – shaft diameter

D: 140 mm – outside diameter

B: 13 mm – seal width

Complete dimensional designation:

120x140x13 mm

These dimensions are associated with both the older 12000556 reference and the current 12000556B designation.

The dimensions alone should not be used to establish complete interchangeability with another 120x140x13 mm radial shaft seal.

BASL Simmerring and Dust Lip Construction

For CORTECO 12000556B, the catalogue designation is:

BASL Simmerring

A confirmed construction feature of this exact reference is the presence of an:

auxiliary dust lip.

The primary sealing lip operates on the rotating shaft, while the additional dust lip provides a secondary barrier on the external side of the sealing zone.

This distinction is important when comparing 120x140x13 mm seals. Another seal with identical nominal dimensions but a different lip configuration should not automatically be treated as technically equivalent.

The available product data does not confirm a specific hydrodynamic rotation direction for this reference.

NBR Material

CORTECO specifies the material for this reference as:

NBR – Nitrile Butadiene Rubber.

Material is an essential part of product identification. A 120x140x13 mm seal manufactured from a different elastomer should not automatically be considered equivalent to CORTECO 12000556B NBR BASL.

The available exact-reference data does not provide sufficient basis for assigning specific values for:

• exact Shore A hardness
• exact operating temperature range
• maximum operating pressure
• maximum shaft surface speed
• exact NBR compound designation

These parameters should therefore not be inferred from generic NBR data.

CORTECO 12000556B Wheel Hub Application

Current catalogue data identifies CORTECO 12000556B as a:

wheel hub radial shaft seal

with the fitting position:

rear axle.

This is more precise than describing the product generically as a seal for industrial machinery, gearboxes or transmissions.

For vehicle-specific selection, the CORTECO reference, OE number and exact axle/hub application should be checked together.

CORTECO 12000556B OE References

Confirmed OE cross-references include:

The same OE reference 7700012311 appears for both CLAAS and RENAULT.

OE cross-references are useful for product identification but should not be interpreted as universal compatibility with every machine or vehicle from the corresponding manufacturer.

CORTECO 12000556 vs 12000556B

The older catalogue designation is:

CORTECO 12000556

with the combination:

NBR + BASL + 120x140x13 mm.

Current aftermarket catalogue data identifies the product as:

CORTECO 12000556B.

For international SEO, AI Search and catalogue identification, both references should therefore appear naturally on the product page.

The primary current product entity should be:

CORTECO 12000556B 120x140x13 NBR BASL

while 12000556 remains important for searches based on older catalogues, packaging and inventory records.

Trade No. 82000556 and EAN 3358960142283

Two additional identifiers help distinguish the exact product:

Trade No.: 82000556

EAN: 3358960142283

These identifiers are particularly useful for purchasing departments, distributors and B2B customers comparing catalogue records from different systems.

They also reduce ambiguity where searches are performed using an older 12000556 reference rather than 12000556B.

Selection and Interchangeability

When selecting a replacement for CORTECO 12000556B, verify:

• CORTECO reference 12000556B / 12000556
• shaft diameter d: 120 mm
• outside diameter D: 140 mm
• width B: 13 mm
• material NBR
• BASL construction
• auxiliary dust lip
• OE reference
• rear axle / wheel hub installation
• operating medium and actual operating conditions

A dimensional match of 120x140x13 mm alone does not establish full technical interchangeability.

In vehicle applications, matching the OE reference and exact installation position is particularly important.

Technical Specification

FAQ

What are the dimensions of CORTECO 12000556B?

The nominal dimensions are d: 120 mm, D: 140 mm, B: 13 mm, giving the complete size 120x140x13 mm.

What material is CORTECO 12000556B made from?

The seal is manufactured from NBR – Nitrile Butadiene Rubber.

What does BASL mean for CORTECO 12000556B?

BASL Simmerring is the confirmed trade/design designation associated with this reference. The product incorporates an auxiliary dust lip in addition to the primary sealing function.

Where is CORTECO 12000556B installed?

Current catalogue data identifies it as a wheel hub shaft seal with the fitting position specified as the rear axle.

What is the difference between 12000556 and 12000556B?

12000556 is the older catalogue reference, while current catalogue data uses 12000556B. Both are associated with the 120x140x13 mm, NBR, BASL product identity.

What is CORTECO Trade No. 82000556?

82000556 is an additional trade identifier for CORTECO 12000556B. The product EAN is 3358960142283.

Which OE numbers correspond to CORTECO 12000556B?

Confirmed references include CARRARO 025343, CLAAS 7700012311, MAN 06562890223 and RENAULT 7700012311.

Can any 120x140x13 oil seal replace CORTECO 12000556B?

Not automatically. A replacement should be checked for dimensions, NBR material, lip construction, OE reference, fitting position and operating requirements.

AI Overview

CORTECO 12000556B is an NBR Simmerring® radial shaft seal with dimensions d: 120 mm, D: 140 mm, B: 13 mm. It uses the BASL Simmerring designation and incorporates an auxiliary dust lip. Current catalogue data identifies it for rear axle wheel hub applications. The older reference is 12000556.