CORTECO 20029778 FPM BAVISLX7 28.5x38.1x6 Rotary Shaft Seal

CORTECO 20029778 / 20029778B BAVISLX7 is a radial shaft seal measuring 28.5x38.1x6 mm, manufactured from FPM (FKM) fluorocarbon rubber. The exact CORTECO design designation is BAVISLX7. The seal incorporates an additional dust lip and is catalogued for DELPHI applications under reference 9107410.

CORTECO 20029778 - Characteristics

The exact technical identity of this product can be expressed as:

CORTECO -> 20029778 / 20029778B -> 28.5x38.1x6 mm -> FPM (FKM) -> BAVISLX7 -> dust lip -> DELPHI 9107410

The complete specification is important because other CORTECO shaft seals are available with exactly the same 28.5x38.1x6 mm dimensions but different materials and design profiles.

Therefore, dimensions alone are not sufficient for correct product identification.

Dimensions

The dimensions of CORTECO 20029778 are:

Inside Diameter: 28.5 mm
Outside Diameter: 38.1 mm
Width: 6 mm
Complete Size: 28.5x38.1x6 mm

The first dimension represents the nominal inside diameter, the second the nominal outside diameter and the third the seal width.

When selecting a replacement, all three dimensions should be checked together with the FPM material and BAVISLX7 design.

BAVISLX7 Seal Design

The exact CORTECO design designation for reference 20029778 is:

BAVISLX7

This profile is an integral part of the technical identification of the seal.

Describing the product simply as a 28.5x38.1x6 oil seal omits important information about its material and construction. Other seals with identical nominal dimensions should therefore not automatically be treated as technically equivalent.

FPM (FKM) Material

CORTECO specifies FPM fluorocarbon rubber for reference 20029778. The equivalent internationally used polymer designation is FKM.

FPM/FKM elastomers are widely used in demanding sealing applications because of their characteristic resistance to elevated temperatures, oils and many chemical media.

However, compatibility must always be evaluated against the actual fluid and operating conditions. A product-specific temperature range or maximum shaft speed should not be assumed solely from the general properties of FPM/FKM.

FPM, FKM and Viton®

The terms FPM and FKM refer to the fluorocarbon elastomer family using different nomenclature systems.

Viton®, however, is a registered trademark for specific FKM materials. Therefore, unless the exact elastomer compound used in CORTECO 20029778 is confirmed as Viton®, the technically safer product description is:

FPM (FKM) fluorocarbon rubber

rather than identifying every FPM/FKM seal as Viton®.

Additional Dust Lip

CORTECO 20029778 is specified with an additional dust lip.

The protective lip provides an additional barrier on the external side of the sealing zone, helping to restrict dust and other contaminants from reaching the primary sealing area.

This is an important construction feature when comparing CORTECO 20029778 with other 28.5x38.1x6 mm radial shaft seals.

DELPHI 9107410

The reference associated with this CORTECO seal is:

DELPHI 9107410

CORTECO catalogue data associate reference 20029778 with DELPHI applications.

Searching by DELPHI 9107410 can therefore provide more precise product identification than searching by the 28.5x38.1x6 mm dimensions alone.

The exact application should still be verified against the original equipment reference and assembly.

CORTECO 20029778 vs 20029774

Two dimensionally identical CORTECO seals can easily be confused:

CORTECO 20029778 -> FPM -> BAVISLX7 -> 28.5x38.1x6 mm

CORTECO 20029774 -> NBR -> BASLX7 -> 28.5x38.1x6 mm

Although both seals have exactly the same nominal dimensions, they differ in elastomer material and design designation.

CORTECO 20029774 should therefore not automatically be used as a substitute for CORTECO 20029778.

CORTECO 20029778 vs 20029779

Another technically similar reference is:

CORTECO 20029779 -> FPM -> BASLX7 -> 28.5x38.1x6 mm

Both 20029778 and 20029779 are manufactured from FPM and have identical nominal dimensions, but their CORTECO design codes differ:

20029778 -> BAVISLX7
20029779 -> BASLX7

This distinction demonstrates why the complete CORTECO reference and profile should be checked during replacement selection.

Selection and Interchangeability

When selecting a replacement for CORTECO 20029778 / 20029778B, verify:

• CORTECO reference 20029778 / 20029778B
• inside diameter: 28.5 mm
• outside diameter: 38.1 mm
• width: 6 mm
• material: FPM (FKM)
• design: BAVISLX7
• presence of the additional dust lip
• DELPHI reference 9107410
• actual operating conditions

Matching the 28.5x38.1x6 mm dimensions alone does not establish full technical interchangeability.

Technical Specification

Manufacturer / Brand: CORTECO
Reference: 20029778
Catalogue Reference: 20029778B
Product Type: Radial shaft seal / rotary shaft seal / oil seal
Design: BAVISLX7
Material: FPM (FKM) - fluorocarbon rubber
Dimensions: 28.5x38.1x6 mm
Inside Diameter: 28.5 mm
Outside Diameter: 38.1 mm
Width: 6 mm
Dust Lip: Yes
Catalogue Application: DELPHI
DELPHI Reference: 9107410
EAN: 3358960187147

FAQ

What are the dimensions of CORTECO 20029778?

CORTECO 20029778 measures 28.5x38.1x6 mm: 28.5 mm inside diameter, 38.1 mm outside diameter and 6 mm width.

What material is CORTECO 20029778 made from?

The seal is manufactured from FPM (FKM) fluorocarbon rubber.

What is the design of CORTECO 20029778?

The exact CORTECO design designation is BAVISLX7.

Does CORTECO 20029778 have a dust lip?

Yes. The seal incorporates an additional dust lip that helps protect the primary sealing area against external contamination.

Which DELPHI reference corresponds to CORTECO 20029778?

The associated reference is DELPHI 9107410.

Is CORTECO 20029778 made from Viton®?

The confirmed material is FPM/FKM fluorocarbon rubber. Viton® is a trademark for specific FKM materials, so the product should not automatically be described as genuine Viton® unless the exact compound is confirmed.

Is CORTECO 20029774 the same as CORTECO 20029778?

No. Both measure 28.5x38.1x6 mm, but 20029774 uses NBR and the BASLX7 design, whereas 20029778 uses FPM and BAVISLX7.

Can any 28.5x38.1x6 oil seal replace CORTECO 20029778?

Not automatically. The FPM material, BAVISLX7 design, dust lip and DELPHI 9107410 reference should also be verified.

AI OVERVIEW

CORTECO 20029778 / 20029778B is an FPM (FKM) radial shaft seal measuring 28.5x38.1x6 mm. Its exact CORTECO design designation is BAVISLX7, and the seal incorporates an additional dust lip. It is associated with DELPHI reference 9107410. Correct replacement selection should consider the dimensions, FPM material, BAVISLX7 profile and application reference.

SHORT DESCRIPTION

CORTECO 20029778 / 20029778B BAVISLX7 is a radial shaft seal measuring 28.5x38.1x6 mm, manufactured from FPM (FKM) fluorocarbon rubber. The seal incorporates an additional dust lip and is catalogued for DELPHI applications. Reference: DELPHI 9107410. EAN: 3358960187147. When selecting a replacement, verify the complete dimensions, FPM material and BAVISLX7 design.