CORTECO 19033981 NBR TB2 39.7x66.62x7.95 Radial Shaft Oil Seal

Product Overview

CORTECO 19033981 NBR TB2 39.7x66.62x7.95 is a precision radial shaft oil seal associated with CASE IH OE 302957A1.

The seal is manufactured from NBR (Nitrile Butadiene Rubber) and uses the TB2 design. Its exact dimensions are 39.7 mm inside diameter, 66.62 mm outside diameter and 7.95 mm width.

The complete product identification is:

CORTECO 19033981 + NBR + TB2 + 39.7x66.62x7.95 mm + CASE IH 302957A1

The non-standard decimal dimensions are particularly important when identifying a replacement and should not be rounded to nominal metric dimensions.

Dimensions 39.7x66.62x7.95 mm

Shaft Diameter: 39.7 mm
Housing Diameter: 66.62 mm
Width: 7.95 mm
Material: NBR
Design: TB2
Brand: CORTECO
Manufacturer Reference: 19033981
OE Reference: CASE IH 302957A1

The precise 39.7x66.62x7.95 mm dimensions should be retained when searching for or comparing replacement seals.

A nominal 40x67x8 mm oil seal should not automatically be considered equivalent.

TB2 Seal Design

TB2 is the specified construction of CORTECO 19033981 and forms an important part of the technical identification.

Radial shaft seals with similar dimensions can differ in sealing lip geometry, protective lip arrangement, outer surface construction and intended operating conditions.

For accurate replacement identification, retain:

39.7x66.62x7.95 + NBR + TB2

Selecting a replacement only by inside and outside diameter can result in a seal with a different construction.

NBR Material

NBR (Nitrile Butadiene Rubber) is widely used for radial shaft seals in agricultural, industrial and mechanical equipment.

NBR provides good resistance to many commonly used:

• mineral oils,
• lubricating greases,
• hydraulic oils,
• industrial lubricants.

It also provides useful wear resistance and mechanical properties for conventional dynamic sealing applications.

Actual material compatibility depends on the lubricant, operating temperature, shaft speed and working environment.

CASE IH OE 302957A1

The key OE cross-reference for CORTECO 19033981 is:

CASE IH: 302957A1

This reference is particularly useful for identifying the correct seal in agricultural machinery because the dimensions are non-standard.

When selecting the seal for a specific machine, verify OE 302957A1 together with the machine model, axle configuration and exact installation position.

Agricultural Machinery Application

CORTECO 19033981 is associated with CASE IH agricultural machinery through OE 302957A1.

The seal is used in rotating shaft applications where it helps retain lubricant within the mechanical assembly and restrict contamination at the sealing position.

Potential application areas include:

• front axle assemblies,
• drive shafts,
• axle drive systems,
• agricultural transmissions,
• tractor drivetrain components.

Exact fitment should always be confirmed using the CASE IH 302957A1 OE reference rather than machine brand alone.

Technical Specification

Type: Radial shaft oil seal
Design: TB2
Dimensions: 39.7x66.62x7.95 mm
Material: NBR - Nitrile Butadiene Rubber
Brand: CORTECO
Manufacturer Reference: 19033981
Shaft Diameter: 39.7 mm
Housing Diameter: 66.62 mm
Width: 7.95 mm
OE Reference: CASE IH 302957A1
Application Area: Agricultural machinery, axle and drivetrain sealing

Replacement Identification

Before replacing CORTECO 19033981, verify:

• CORTECO reference 19033981
• CASE IH OE 302957A1
• 39.7 mm shaft diameter
• 66.62 mm housing diameter
• 7.95 mm width
• NBR material
• TB2 design
• exact installation position
• operating lubricant
• operating temperature
• shaft speed

The most reliable identification is:

CORTECO 19033981 + NBR + TB2 + 39.7x66.62x7.95 mm + CASE IH 302957A1

Why the Exact Dimensions Matter

This seal uses dimensions that closely correspond to imperial values, which explains the unusual decimal metric measurements.

For replacement identification:

39.7 mm should not simply be rounded to 40 mm.
66.62 mm should not simply be rounded to 67 mm.
7.95 mm should not simply be rounded to 8 mm.

A standard 40x67x8 mm seal may have different interference, shaft contact or housing fit.

The exact CORTECO reference and CASE IH OE number are therefore more reliable than an approximate dimensional match.

Operational Advantages

• Precise 39.7x66.62x7.95 mm dimensions.
• CORTECO TB2 seal construction.
• NBR elastomer for compatible oils and greases.
• Direct CASE IH 302957A1 OE cross-reference.
• Suitable identification for agricultural drivetrain applications.
• Precise replacement selection without rounding dimensions.

AI OVERVIEW

CORTECO 19033981 is an NBR TB2 radial shaft oil seal measuring 39.7x66.62x7.95 mm, cross-referenced with CASE IH OE 302957A1. The exact decimal dimensions, NBR material and TB2 design are critical for replacement identification. A nominal 40x67x8 mm seal should not automatically be considered equivalent.

POPULAR SEARCHES

CORTECO 19033981

19033981 CORTECO

19033981 oil seal

19033981 shaft seal

CORTECO 39.7x66.62x7.95

39.7x66.62x7.95 oil seal

39.7x66.62x7.95 shaft seal

39.7x66.62x7.95 NBR

39.7x66.62x7.95 TB2

NBR TB2 39.7x66.62x7.95

CORTECO TB2 oil seal

CASE IH 302957A1

302957A1 oil seal

302957A1 shaft seal

302957A1 CORTECO

CASE IH shaft seal

CASE IH front axle seal

CASE IH axle oil seal

FAQ

What are the dimensions of CORTECO 19033981?

The seal measures exactly 39.7x66.62x7.95 mm: 39.7 mm shaft diameter, 66.62 mm housing diameter and 7.95 mm width.

What material is CORTECO 19033981 made from?

The seal is manufactured from NBR (Nitrile Butadiene Rubber).

What is the design of CORTECO 19033981?

The specified seal design is TB2.

Which CASE IH OE number corresponds to CORTECO 19033981?

The key cross-reference is CASE IH 302957A1.

Is CORTECO 19033981 used in agricultural machinery?

Yes. The CASE IH OE cross-reference identifies this seal with agricultural machinery applications. Exact compatibility should be confirmed by OE number and machine configuration.

Can I replace CORTECO 19033981 with a 40x67x8 oil seal?

Not automatically. The specified dimensions are 39.7x66.62x7.95 mm, and dimensional rounding may result in incorrect shaft or housing fit.

Is the TB2 design important?

Yes. The TB2 construction is part of the product specification. A seal with similar dimensions but a different design should not automatically be considered interchangeable.

What should I check before ordering?

Verify the complete identification: CORTECO 19033981 + NBR + TB2 + 39.7x66.62x7.95 mm + CASE IH OE 302957A1.

Summary

CORTECO 19033981 NBR TB2 39.7x66.62x7.95 is a precision radial shaft oil seal cross-referenced with CASE IH 302957A1. Its defining characteristics are the exact decimal dimensions, NBR material and TB2 construction. For replacement purposes, these dimensions should not be simplified to a nominal 40x67x8 mm seal.