CORTECO 19027721B 90x115x13 NBR TB2 Radial Shaft

CORTECO 19027721B 90x115x13 NBR TB2 Radial Shaft Seal

CORTECO 19027721B is a radial shaft seal with nominal dimensions 90x115x13 mm, manufactured with an NBR – Nitrile Butadiene Rubber elastomeric element and CORTECO TB2 profile. The product is also associated with the base reference 19027721, trade number 82027721, EAN 3358960219930 and OE reference KOMATSU 0701200090.

The key product identification is:

CORTECO + 19027721B + 90x115x13 + NBR + TB2 + 82027721

CORTECO 19027721B – Technical Characteristics

The exact product identification includes:

The combination 19027721B + NBR + TB2 + 90x115x13 mm provides a substantially more precise identification than the dimensions alone.

CORTECO 19027721B Dimensions

The principal nominal dimensions are:

d: 90 mm – shaft diameter

D: 115 mm – seal outside diameter / housing bore diameter

B: 13 mm – axial width

Complete nominal size:

90x115x13 mm

The dimensions should not be used as the only criterion when identifying a replacement seal.

Different radial shaft seal designs can share exactly the same 90x115x13 mm boundary dimensions while differing in material, lip geometry and other construction characteristics.

For this product, the 19027721B part number and TB2 profile should therefore remain part of the identification.

What Does TB2 Mean on CORTECO 19027721B?

TB2 is the CORTECO profile designation assigned to this specific radial shaft seal configuration.

The manufacturer catalogue identifies the product as:

19027721 – NBR TB2 – 90x115x13

while current commercial identification uses:

19027721B

and trade number:

82027721

The TB2 designation should be retained when searching for or selecting a replacement.

Seal profile nomenclature varies between manufacturers. TB2 should therefore not be automatically converted into another manufacturer's profile code without verifying the actual construction.

NBR – Nitrile Butadiene Rubber

CORTECO specifies the material of this seal as:

NBR – Nitrile Butadiene Rubber

The material is part of the complete product identification:

CORTECO 19027721B NBR TB2

NBR represents a family of technical elastomer compounds used in sealing applications.

However, the generic NBR designation does not identify the exact compound formulation used in this specific CORTECO product.

For this reason, an exact:

• Shore A hardness
• operating temperature range
• maximum shaft surface speed
• maximum permissible pressure
• detailed chemical compatibility range

should not be assigned from generic NBR data alone.

These values should be based on documentation applicable to the exact seal or compound.

CORTECO 19027721B and KOMATSU 0701200090

The OE cross-reference associated with CORTECO 19027721B is:

KOMATSU 0701200090

This reference can be useful when identifying the seal from an original equipment number.

The product can therefore be searched using:

CORTECO 19027721B

CORTECO 19027721

CORTECO 82027721

KOMATSU 0701200090

Before installation, however, the actual application should be checked against the specific machine, assembly and applicable equipment documentation.

An OE cross-reference should not replace verification of the complete application.

CORTECO 19027721B vs GRN® 90x115x13 NBR TC

This distinction is important both technically and for product-page SEO architecture.

Both products share:

d: 90 mm

D: 115 mm

B: 13 mm

and:

NBR

However, this does not establish automatic technical equivalence.

The CORTECO page should therefore focus primarily on:

CORTECO 19027721B

19027721B radial shaft seal

CORTECO TB2 90x115x13

CORTECO 82027721

KOMATSU 0701200090

The GRN® page remains focused on the GRN® 90x115x13 NBR TC double lip rotary shaft seal.

This separation reduces search-intent overlap between products with identical boundary dimensions.

Other CORTECO 90x115x13 Seal Variants

The 90x115x13 mm dimensions alone do not uniquely identify a CORTECO shaft seal.

CORTECO catalogues multiple products in these dimensions with different materials and profile designations, including variants identified as:

NBR B1SL

FPM B1BAVISLRSX7

VMQ SB

ACM SB2

ACM TB

NBR TB2

VMQ TB2

This is why the exact identification:

19027721B + NBR + TB2

is more useful than searching by 90x115x13 alone.

A seal with matching dimensions but a different profile or elastomer should not automatically be treated as the same product.

Selection and Interchangeability

When identifying CORTECO 19027721B or evaluating a replacement, verify:

• part number 19027721B
• base reference 19027721
• trade number 82027721
• dimensions 90x115x13 mm
• shaft diameter d: 90 mm
• outside diameter D: 115 mm
• width B: 13 mm
• material NBR
• CORTECO profile TB2
• OE reference KOMATSU 0701200090, when selection is based on the original equipment number
• actual application
• operating medium
• operating conditions
• shaft surface condition
• housing condition

Matching only the 90x115x13 mm dimensions is insufficient to establish full technical interchangeability.

The seal profile, material and application requirements must also be considered.

Technical Specification

FAQ

What are the dimensions of CORTECO 19027721B?

The nominal dimensions are d: 90 mm, D: 115 mm, B: 13 mm, or 90x115x13 mm.

What material is CORTECO 19027721B made from?

CORTECO identifies the 19027721 / 19027721B seal as an NBR – Nitrile Butadiene Rubber variant.

What is the profile of CORTECO 19027721B?

The manufacturer's profile designation is TB2.

Are CORTECO 19027721 and 19027721B related?

Yes. The catalogue uses the 19027721 reference, while current commercial data identifies the product as 19027721B. Both refer to the 90x115x13 NBR TB2 configuration.

What is the trade number for CORTECO 19027721B?

The trade number is 82027721.

Which KOMATSU OE number is associated with CORTECO 19027721B?

The identified OE cross-reference is KOMATSU 0701200090.

Can CORTECO 19027721B be replaced by GRN® 90x115x13 NBR TC?

Automatic interchangeability should not be assumed. Both products share the same nominal dimensions and NBR material, but CORTECO uses the TB2 profile while the GRN® product is identified as TC. The actual construction and application requirements should be verified.

Are all 90x115x13 radial shaft seals the same?

No. Seals with the same 90x115x13 mm dimensions can differ in material, profile and construction. The complete part number and technical specification should be used for identification.

AI Overview

CORTECO 19027721B is an NBR radial shaft seal with nominal dimensions d: 90 mm, D: 115 mm, B: 13 mm and CORTECO TB2 profile. Its trade number is 82027721 and EAN is 3358960219930. The product is cross-referenced to KOMATSU 0701200090 for OE-based identification.