CORTECO 12013388 85x110x13 NBR BAX7 Rotary Shaft Seal

Applications - Wheel Hub and Differential Shaft Sealing

The CORTECO 12013388 85x110x13 NBR BAX7 rotary shaft seal is designed for reliable sealing of rotating shafts in heavy-duty automotive and industrial applications. It is commonly used as a wheel hub shaft seal and differential shaft seal in trucks, agricultural machinery, and industrial drive systems.

This oil seal corresponds to OEM references including:

• CLAAS 7700005852

• DAF 0015484, 0015485

• IVECO 86015484

• Renault Trucks 7701003394

• Volvo 947270, 9472705

• ZORZI (selected applications)

It ensures effective oil retention and protection against contamination in demanding drivetrain systems.

Advantages - NBR Material and BAX7 Design

Manufactured by CORTECO, a globally recognized seal manufacturer, this rotary seal is produced from NBR (nitrile butadiene rubber). NBR provides strong resistance to oils and grease, making it suitable for gear oil and axle lubrication systems.

The BAX7 construction features a reinforced metal case and a spring-loaded sealing lip that maintains consistent radial pressure on the shaft. This design improves sealing reliability in high-load and high-speed conditions. It supports high durability and stable performance in heavy-duty applications.

When properly installed in a bearing housing and used alongside components such as ball bearings or complete bearing units, it contributes to maintaining system integrity and preventing lubricant loss.

Technical Specifications

• Manufacturer: CORTECO

• Part number: 12013388

• Type: BAX7

• Dimensions: 85x110x13 mm

• Material: NBR

• Application: Wheel hub and differential shaft sealing

• Media compatibility: Gear oils and lubricants

Main Description

The CORTECO 12013388 85x110x13 NBR BAX7 oil seal is engineered for demanding automotive and industrial environments where secure rotary sealing is essential. Its primary function is to prevent oil leakage from the wheel hub or differential assembly while protecting internal components from external contamination.

The spring-loaded sealing lip ensures constant contact with the shaft surface, maintaining effective sealing performance even under dynamic loads. The NBR compound provides flexibility and oil resistance, supporting long service life in heavy-duty conditions.

This technical seal is frequently used in truck axle systems, agricultural equipment, and industrial machinery. When combined with properly installed rolling bearings and a suitable bearing housing, it forms a reliable sealing system that reduces maintenance requirements and enhances operational safety.

For maintenance professionals and OEM manufacturers, the CORTECO 12013388 offers a dependable and cost-effective solution for drivetrain sealing applications.

FAQ - Frequently Asked Questions

What is the main application of this seal?
It is primarily used as a wheel hub and differential shaft oil seal.

Is NBR suitable for gear oil applications?
Yes, NBR provides good resistance to oils and grease.

What does BAX7 mean?
BAX7 refers to a reinforced design with a spring-loaded sealing lip suitable for heavy-duty use.

Can it be used in truck axle systems?
Yes, it is commonly installed in heavy-duty vehicle drivetrain systems.

How do I select the correct size?
Match the shaft diameter 85 mm, housing diameter 110 mm, and width 13 mm.