CORTECO 12011922 NBR BADUOSF 10x18x5/8 mm Radial Shaft Seal

Technical specifications

The dimensions, material and profile correspond to the CORTECO dimensional catalogue. Industry product descriptions also identify this reference as a double lip seal.

Catalogue numbers and OE references

The CAGIVA references appear in replacement parts catalogues, while the MINARELLI number is listed by distributors.

However, specific motorcycle models and installation positions have not been confirmed for all the listed references.

What does CORTECO 12011922 NBR BADUOSF 10x18x5/8 mean?

Important: The designation 10x18x5/8 mm does not indicate two alternative widths from which either 5 mm or 8 mm can be selected.

It identifies a construction incorporating two nominal axial dimensions.

The exact relationship between these dimensions and the individual profile elements requires confirmation using the manufacturer's technical drawing.

BADUOSF sealing profile - construction and operating principle

1. Primary sealing lip

The primary sealing lip operates against the rotating shaft surface with a nominal diameter of 10 mm.

Its main function is to limit lubricant leakage from the sealed mechanical assembly.

Sealing performance depends on shaft surface condition, correct installation and compatibility between the elastomer and the operating medium.

2. DUO double lip construction

The BADUOSF designation identifies a special double lip sealing construction.

The second lip forms an additional element of the sealing arrangement.

Its exact geometry, sealing direction and contact pressure mechanism require confirmation from CORTECO technical documentation.

The BADUOSF profile must not automatically be considered equivalent to a conventional AO/TC seal.

3. Axial dimensions of 5/8 mm

The two axial dimensions are particularly important when selecting a replacement seal.

They may correspond to different parts of the sealing construction.

Therefore, CORTECO 12011922 should not be replaced with a conventional 10x18x5 mm oil seal without confirming full construction compatibility.

NBR - technical material properties

Nitrile butadiene rubber is a technical elastomer widely used in industrial rotating shaft sealing applications.

Appropriately selected NBR compounds typically offer:

• Good resistance to many mineral oils.

• Compatibility with numerous industrial greases.

• Useful mechanical properties.

• Suitability for oil-lubricated mechanical assemblies.

• Wear resistance dependent on the elastomer compound and operating conditions.

Some commercial catalogues list a general NBR operating temperature range of -30°C to +100°C for this product.

However, this range should not be treated as an individually verified operating limit for CORTECO 12011922 without manufacturer documentation.

Maximum permissible pressure and peripheral shaft speed have not been confirmed.

BADUOSF versus BA and TC - sealing profile comparison

Despite functional similarities, BADUOSF is not automatically interchangeable with a conventional TC seal.

Applications of CORTECO 12011922

CAGIVA

The CORTECO dimensional catalogue identifies CAGIVA as an application associated with reference 12011922.

Replacement parts catalogues list the following references:

• CAGIVA 68278

• CAGIVA 800068278

MINARELLI

Distributor catalogues also list the following reference:

- MINARELLI 5305339000

However, the seal should not be assigned to a specific motorcycle model, engine or gearbox without additional verification.

The original equipment number and installation position should be checked before ordering.

Comparison with other CORTECO radial shaft seals

The following references appear in CORTECO dimensional catalogues.

These products have similar nominal diameters but differ in width, sealing profile or material.

None of the listed references should automatically be considered a confirmed replacement for CORTECO 12011922.

Selection and interchangeability

Before ordering CORTECO 12011922, verify:

1. CORTECO catalogue reference 12011922 or 12011922B.

2. Complete BADUOSF sealing profile designation.

3. Nominal shaft diameter - 10 mm.

4. Nominal housing bore diameter - 18 mm.

5. Both nominal axial dimensions - 5/8 mm.

6. NBR elastomer material.

7. Geometry of the original sealing element.

8. Type of sealed operating medium.

9. Operating temperature, pressure and shaft speed.

10. Compatibility of the OE reference and installation position.

The most important selection criterion is compatibility with the complete BADUOSF construction, rather than simply matching the 10 mm and 18 mm diameters.

Alternative designations and product identification

Common product identification variants include:

• CORTECO 12011922

• CORTECO 12011922B

• CORTECO 82011922

• CORTECO BADUOSF 10x18x5/8

• CORTECO 10x18x5/8 NBR Oil Seal

• CORTECO 10x18x5/8 Simmerring

• CORTECO 12011922 Radial Shaft Seal

• CORTECO 12011922 NBR Oil Seal

• CORTECO BADUOSF Double Lip Seal

• CORTECO 10x18x5/8 Rotary Shaft Seal

These designations support product identification in technical documentation and catalogue searches.

Descriptive name variants should not be interpreted as additional manufacturer catalogue numbers.

Installation and operating recommendations

Before installation, thoroughly clean the shaft surface and housing bore.

Inspect the following:

• Condition of the surfaces contacting the sealing lips.

• Presence of corrosion, scratches and wear grooves.

• Compatibility of installation dimensions.

• Required installation depth.

• Correct orientation of the BADUOSF profile.

• Lubrication conditions.

The seal should be installed evenly using an appropriate installation tool.

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

For the BADUOSF construction measuring 10x18x5/8 mm, it is particularly important to maintain the original installation orientation and provide sufficient space for the additional sealing element.

FAQ - Frequently asked questions

1. What are the dimensions of CORTECO 12011922?

The nominal dimensions are 10x18x5/8 mm. The inner diameter is 10 mm, the outer diameter is 18 mm and the two axial dimensions are 5/8 mm.

2. What material is CORTECO 12011922 made from?

The seal is manufactured from nitrile butadiene rubber (NBR), as specified in the CORTECO catalogue.

3. What does the BADUOSF sealing profile mean?

BADUOSF identifies a special double lip radial shaft seal construction. Its detailed geometry requires confirmation using the manufacturer's technical drawing.

4. Is CORTECO 12011922 a double lip seal?

Yes. Industry catalogues identify this product as a DUO-type double lip radial shaft seal.

5. Can CORTECO 12011922 be replaced with a standard TC 10x18x5 mm oil seal?

Interchangeability must not be assumed. CORTECO 12011922 features the BADUOSF profile and two nominal axial dimensions of 5/8 mm.

6. Is CORTECO 12011922 suitable for CAGIVA motorcycles?

The CORTECO catalogue indicates a CAGIVA application. However, compatibility with a specific motorcycle model requires verification of the OE reference and installation position.

7. Which OE references are associated with CORTECO 12011922?

Replacement parts catalogues list CAGIVA 68278 and 800068278, as well as the MINARELLI reference 5305339000.

8. Do 12011922 and 12011922B identify the same product?

The CORTECO dimensional catalogue uses reference 12011922, while other catalogues list 12011922B. Both designations are associated with the NBR BADUOSF 10x18x5/8 mm radial shaft seal.

CORTECO 12011922 - key information (AI Overview)

CORTECO 12011922 is an NBR double lip radial shaft seal with nominal dimensions of 10x18x5/8 mm and the BADUOSF construction profile. The manufacturer catalogue indicates a CAGIVA application, with replacement parts references including CAGIVA 68278 and 800068278. Its specific 5/8 mm axial geometry requires careful verification of the original sealing profile during replacement selection and installation.

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.