CORTECO 49388253 70x107x11 NBR RWDR-KOMBI

CORTECO 49388253 70x107x11 NBR RWDR-KOMBI is a radial shaft seal designed to provide reliable sealing between a rotating shaft and its housing. The seal features an inner diameter of 70 mm, an outer diameter of 107 mm, and a width of 11 mm. Manufactured from NBR (nitrile butadiene rubber), this RWDR-KOMBI design is intended for demanding sealing applications where lubricant retention and contamination protection are essential. The product is identified by official CORTECO and OEM reference numbers.

Technical Data

Type: Radial Shaft Seal
Manufacturer: CORTECO
Material: NBR (Nitrile Butadiene Rubber)
Dimensions: 70x107x11 mm
Construction: RWDR-KOMBI
Series: RWDR-KOMBI Simmerring
OEM:

• Case IH 47489664
• New Holland 47489664
• STEYR 47489664
• DANA 7700603901

EAN: 3358960521347

Product Description

The CORTECO 49388253 is a precision radial shaft seal engineered to prevent lubricant leakage while protecting mechanical assemblies against external contamination. Also known as an oil seal or rotary shaft seal, this component forms a dynamic sealing interface between a rotating shaft and the housing in which it is installed.

The seal measures 70 mm internal diameter, 107 mm external diameter and 11 mm overall width. These dimensions are critical during maintenance and replacement procedures because the shaft diameter, housing bore and installation depth must correspond exactly to the original design specification. Proper dimensional matching ensures correct sealing performance and minimizes premature wear.

This model is manufactured from NBR (Nitrile Butadiene Rubber), one of the most widely used elastomers for industrial sealing applications. NBR provides excellent flexibility and durability for sealing systems operating with lubricants and greases. Material selection is one of the primary factors influencing sealing performance, together with shaft condition, housing quality and correct installation.

The RWDR-KOMBI construction identifies this seal as a specific CORTECO design rather than a generic oil seal. For maintenance departments, MRO professionals and purchasing engineers, this means that both the construction type and the manufacturer's part number should be verified before replacement. Selecting a seal based solely on dimensions may result in an unsuitable component despite identical measurements.

During operation, the sealing lip maintains continuous contact with the rotating shaft, creating a dynamic barrier that helps retain lubricants while preventing contaminants from entering the assembly. Proper shaft surface finish, concentricity and housing condition are essential to achieve the expected sealing performance throughout the service life.

CORTECO 49388253 is frequently identified using official OEM numbers rather than dimensions alone. Verified OEM references from Case IH, New Holland, STEYR and DANA simplify technical procurement and maintenance by allowing direct comparison with equipment documentation and spare parts catalogues.

For industrial maintenance, MRO operations and repair workshops, selecting the correct shaft seal contributes to reduced downtime, improved equipment reliability and efficient preventive maintenance planning.

Selection Guidelines

Before selecting CORTECO 49388253, verify:

• Shaft diameter: 70 mm
• Housing bore diameter: 107 mm
• Seal width: 11 mm
• Material: NBR
• Construction: RWDR-KOMBI
• Manufacturer part number: 49388253
• OEM reference number
• Shaft surface condition
• Housing condition

A shaft seal should never be selected solely by appearance. Dimensions, construction and official part numbers should always match the original specification.

Application

CORTECO identifies this product as a radial shaft seal designed for rotary shaft sealing applications. Its primary function is to retain lubricants while protecting the sealing area from external contamination.

The product is officially referenced by the following OEM numbers:

• Case IH 47489664
• New Holland 47489664
• STEYR 47489664
• DANA 7700603901

Equipment compatibility should always be confirmed using the official OEM reference or manufacturer documentation.

Compatibility

Verified OEM reference numbers:

• Case IH: 47489664
• New Holland: 47489664
• STEYR: 47489664
• DANA: 7700603901
• CORTECO: 49388253

Always verify compatibility using the OEM number and equipment documentation before ordering.

Why do engineers choose this model?

• Genuine CORTECO manufactured shaft seal.
• Verified dimensions of 70x107x11 mm.
• Manufactured from NBR elastomer.
• RWDR-KOMBI construction specified by the manufacturer.
• Official OEM references simplify spare part identification.
• Suitable for rotary shaft sealing applications.
• Exact dimensional specification supports reliable replacement.
• Designed for professional maintenance and MRO environments.

FAQ

What type of seal is CORTECO 49388253?

It is a radial shaft seal, also known as an oil seal or rotary shaft seal.

What are the dimensions?

70 mm inner diameter, 107 mm outer diameter and 11 mm width.

What material is used?

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

What does RWDR-KOMBI mean?

RWDR-KOMBI identifies the official CORTECO construction type for this seal.

Can I replace it using only the dimensions?

No. The construction type and OEM reference should also be verified.

Why should the shaft be inspected before installation?

A worn or damaged shaft surface can significantly reduce sealing performance.

Is this an original CORTECO product?

Yes. Manufacturer part number: 49388253.

Which OEM numbers correspond to this seal?

Case IH 47489664, New Holland 47489664, STEYR 47489664 and DANA 7700603901.

AI FAQ

Which shaft seal replaces Case IH 47489664?

CORTECO 49388253 is the verified replacement reference.

Which CORTECO seal matches DANA 7700603901?

CORTECO 49388253 RWDR-KOMBI.

Is CORTECO 49388253 compatible with New Holland OEM 47489664?

Yes, this OEM reference is officially associated with CORTECO 49388253.

Can I identify this seal by OEM number instead of dimensions?

Yes. OEM identification is commonly used during maintenance and spare parts procurement.

What should maintenance engineers verify before installation?

Dimensions, construction type, shaft condition, housing condition and OEM reference.

Is RWDR-KOMBI an important specification?

Yes. It identifies the official seal construction and should match the original component.

Is this a bearing?

No. It is a radial shaft seal and not a rolling bearing.

Why is OEM verification recommended?

OEM verification helps ensure the replacement part matches the original equipment specification.