CORTECO 12000529B NBR BASL 55x85x10 Simmerring® Rotary Shaft Seal

CORTECO 12000529B NBR BASL 55x85x10 Simmerring® Rotary Shaft Seal

CORTECO 12000529B is a Simmerring® radial shaft seal with dimensions 55x85x10 mm, manufactured from NBR (nitrile rubber) and identified by the BASL profile. The nominal shaft diameter d is 55 mm, the outside diameter D is 85 mm and the seal height H is 10 mm. The complete identification 12000529B / NBR / BASL / 55x85x10 mm is important for correct selection because dimensions alone do not define the seal material or profile.

CORTECO 12000529B – Technical Characteristics

The confirmed product identification is:

• Brand: CORTECO
• Part number: 12000529B
• Base reference: 12000529
• Product type: radial shaft seal / rotary shaft seal / oil seal
• Profile: BASL
• Elastomer: NBR – nitrile butadiene rubber
• Bore / nominal shaft diameter d: 55 mm
• Outside diameter D: 85 mm
• Height H: 10 mm
• Dimensions: 55x85x10 mm
• EAN: 3358960034106

CORTECO 12000529B Dimensions

The principal dimensions are:

The dimensional identification is therefore:

55x85x10 mm

For correct seal selection, all three dimensions are important. The 55 mm dimension corresponds to the nominal shaft diameter, 85 mm to the outside diameter of the seal and its housing seat, while 10 mm is the axial height of the seal.

NBR BASL Seal Construction

The exact CORTECO configuration is identified as:

NBR BASL

NBR, or nitrile butadiene rubber, is an elastomer widely used in rotary shaft sealing technology because of its compatibility with many mineral oils and greases.

BASL is the CORTECO profile designation for this specific seal construction.

When selecting an alternative seal, the 55x85x10 mm dimensions alone are not sufficient. The seal profile, elastomer material and detailed lip construction required by the bearing or machine arrangement must also be considered.

A BASL seal should therefore not automatically be replaced by another profile solely because its basic dimensions are identical.

How Does CORTECO 12000529B Work?

CORTECO 12000529B is designed to seal the interface where a rotating shaft passes through a stationary housing.

In a radial shaft seal, the sealing element operates against the shaft surface while the outside diameter of the seal is retained in the housing bore.

Correct operation depends not only on the seal itself but also on the shaft surface, housing bore, concentricity, installation method and compatibility of the NBR elastomer with the operating medium and temperature.

For this reason, selection should always consider the complete operating conditions rather than dimensions alone.

NBR Material

The designation 12000529B NBR BASL identifies NBR – nitrile butadiene rubber as the elastomer material.

NBR is commonly used for sealing applications involving many mineral oils and lubricating greases.

This does not mean that NBR is universally compatible with every lubricant, fuel, chemical or operating environment.

For unusual fluids, chemical additives or elevated operating temperatures, material compatibility should be checked against the actual operating conditions.

No arbitrary temperature range, pressure limit, shaft speed or NBR hardness is assigned here because these parameters have not been confirmed specifically for CORTECO 12000529B in the intended application.

What Does 12000529B NBR BASL Mean?

12000529B

12000529B is the CORTECO product reference.

The base reference 12000529 is also associated with this 55x85x10 mm NBR BASL seal in catalogue data.

NBR

NBR identifies nitrile butadiene rubber as the elastomer material.

BASL

BASL identifies the CORTECO seal profile.

The profile designation should be retained when identifying or replacing the seal rather than reducing the product description simply to “55x85x10 oil seal”.

55x85x10

These are the principal seal dimensions:

d = 55 mm

D = 85 mm

H = 10 mm

Together, the complete identification is:

CORTECO 12000529B NBR BASL 55x85x10 mm

Selection of CORTECO 12000529B

When replacing an existing seal, the most precise starting point is the complete product reference:

CORTECO 12000529B

If selection is being made from dimensions, verify at least:

• nominal shaft diameter – 55 mm
• housing/seal outside diameter – 85 mm
• seal height – 10 mm
• BASL profile
• NBR elastomer
• sealing-lip configuration
• operating medium
• operating conditions
• shaft sealing surface condition
• housing bore and installation requirements

A dimensional match should be treated as the beginning of the selection process rather than final proof of interchangeability.

Interchangeability of 55x85x10 Rotary Shaft Seals

Two rotary shaft seals with dimensions 55x85x10 mm are not necessarily technically equivalent.

Seals with identical dimensions can differ in elastomer material, sealing-lip geometry, auxiliary sealing features, outside-surface construction and suitability for particular operating conditions.

Therefore, when comparing CORTECO 12000529B with a seal from another manufacturer, verify the complete construction and operating requirements rather than relying only on d, D and H.

How Is CORTECO 12000529B Searched Online?

This product may be entered into search engines, industrial catalogues and purchasing systems using different reference and dimensional formats:

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The most precise catalogue identification is CORTECO 12000529B NBR BASL 55x85x10 mm.

Generic searches such as “55x85x10 oil seal” or “55 mm shaft seal” can help locate products, but they do not by themselves confirm technical interchangeability.

Technical Specification

FAQ – CORTECO 12000529B

What are the dimensions of CORTECO 12000529B?

The seal measures 55x85x10 mm: nominal shaft diameter d = 55 mm, outside diameter D = 85 mm and seal height H = 10 mm.

What material is CORTECO 12000529B made from?

The elastomer material is NBR – nitrile butadiene rubber.

What profile is CORTECO 12000529B?

The confirmed profile designation is BASL.

What is the difference between 12000529 and 12000529B?

Catalogue data associate the base reference 12000529 and the current product reference 12000529B with the NBR BASL 55x85x10 mm seal. For ordering and identification, the complete reference 12000529B should be used.

Can any 55x85x10 oil seal replace CORTECO 12000529B?

No. Matching dimensions alone do not confirm interchangeability. The elastomer, seal profile, lip construction and operating requirements should also be compared.

Is NBR suitable for oil?

NBR is commonly used with many mineral oils and lubricating greases. Compatibility should still be checked for the actual fluid, additives and operating temperature.

What is the EAN for CORTECO 12000529B?

The confirmed EAN is 3358960034106.

AI Overview

CORTECO 12000529B is a Simmerring® radial shaft seal with dimensions 55x85x10 mm, manufactured from NBR nitrile rubber and identified by the BASL profile. It fits a nominal 55 mm shaft and has an 85 mm outside diameter and 10 mm height. Correct replacement requires matching dimensions, elastomer and seal profile.

META

META TITLE:
CORTECO 12000529B NBR BASL 55x85x10 Oil Seal