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Through-shaft oil seals are a type of sealing product designed specifically for through-shafts and are widely used in the transmission shafts of automobiles, mechanical equipment, and industrial equipment.
Through-shaft oil seals are a type of sealing product designed specifically for through-shafts and are widely used in the transmission shafts of automobiles, mechanical equipment, and industrial equipment.

Product
Description

Specification

parameter

Production
Process

type

Application
Scenario

Features

01.

Product
Description

Through-shaft oil seals are a type of sealing product designed specifically for through-shafts and are widely used in the transmission shafts of automobiles, mechanical equipment, and industrial equipment. Its main function is to prevent lubricating oil leakage, while preventing external pollutants, dust, and moisture from entering the equipment, protecting the normal operation of bearings and other internal components. Through-shaft oil seals are often used in working conditions that require through-shaft installation and sealing, and can provide efficient sealing performance and extend the service life of the equipment. Its design is particularly suitable for sealing needs in long-term operation, high-load, and high-temperature environments.

02.

Specification

Material NBR (nitrile rubber), FKM (fluororubber), HNBR (hydrogenated nitrile rubber), EPDM (propylene rubber), PTFE (polytetrafluoroethylene), etc.
Color Black, blue, red, etc. (customizable)
Size Customized according to the equipment shaft diameter and installation space requirements, common sizes range from 20mm to 500mm
Temperature range -40℃ to +150℃ (high temperature type can reach +200℃)
Temperature resistance Possessing excellent high temperature resistance, adapting to high temperature working environment
Wear resistance Excellent wear resistance, suitable for high-speed operation and long-term use
Customized Design Size, material, sealing lip design, etc. can be customized according to customer needs
03.

parameter

Inner diameter range

Customized according to shaft diameter, common inner diameter range is 20mm to 500mm

Outer diameter range

Designed according to the equipment housing or installation location

Thickness range

Common thickness is 5mm to 20mm, customization is supported

Operating temperature

-40℃ to +150℃ (high temperature type can reach +200℃)

Applicable media

Lubricating oil, gear oil, hydraulic oil, etc.

Rotation speed

Suitable for medium and low speed rotation, up to 15m/s

Pressure resistance

The pressure resistance is usually 1MPa to 3MPa, which can be customized according to the requirements.

04.

Production
Process

Metal frame manufacturing

High-strength steel or alloy metal materials are used to ensure the strength and stability of the frame, so that the oil seal can maintain a good sealing effect under high load conditions.

Rubber molding

Select suitable rubber materials (such as NBR, FKM, etc.) and form the sealing lip part through injection molding, pressing and other processes.

Vulcanization

The vulcanization process improves the high temperature resistance, wear resistance, aging resistance and oil resistance of rubber, ensuring the long-term stability of the oil seal in harsh environments.

Finishing and assembly

The sealing lip and installation surface are processed precisely to ensure the sealing effect and installation accuracy.

Quality Inspection

Strict quality control is carried out on each oil seal to check whether the high temperature resistance, sealing performance, wear resistance, etc. meet the standards.

Packaging and delivery

After strict inspection, the products are packaged to ensure safety during transportation.

Standard through shaft oil seal

Applicable to the bearing part of conventional equipment, providing basic sealing effect

High temperature through shaft oil seal

Made of high temperature resistant materials, suitable for high temperature working environment

Double lip type through shaft oil seal

Designed with double sealing lips to enhance sealing effect and prevent oil leakage and external contaminants from entering

Customized through shaft oil seal

Customize size, sealing design and materials according to customers' special needs

type

06.

Application
Scenario

Automotive Industry

Used for sealing of automobile drive shafts, wheels, differentials and other parts to prevent oil leakage and protect internal systems

Industrial Equipment

Such as the sealing of gear boxes, hydraulic pumps, compressors and other equipment to ensure that lubricating oil does not leak

Engineering Machinery

Such as drive shaft seals for excavators, bulldozers and other equipment to protect transmission systems and bearings

Shipping industry

Used for ship gearbox and transmission shaft seals to retain oil and prevent external pollutants from entering

Agricultural machinery

Sealing systems for equipment such as tractors and harvesters

Mining machinery

Such as the sealing of mining vehicles and mining equipment to ensure the normal operation of the equipment

07.

Features

Excellent sealing performance

It can effectively prevent oil leakage and external pollutants, dust, moisture, etc. from entering the equipment.

High temperature resistance

Applicable to high temperature environment to ensure stable operation of equipment

Strong wear resistance

Made of high-performance rubber material, it has strong wear resistance and extends service life

Resistance to aging

It has strong anti-aging performance, adapts to long-term operation, and reduces failures and maintenance.

Lips design

Some models adopt double lip design to enhance the sealing effect and provide higher dust and water resistance

Easy installation

The through-shaft oil seal design simplifies the installation process and provides a convenient installation method

Widely applicable

Applicable to a variety of mechanical equipment and different working conditions, with extremely high versatility

After-sales guarantee

1

 / 

7

Service response speed
Technical Support and Guidance
Product Repair and Replacement
Spare Parts Supply
Regular Inspections and Maintenance
Customer Training and Education
Global After-Sales Service Network
We promise to respond quickly within 24 hours after customers submit after-sales service requests. Whether it is product failure, technical consultation or quality issues, customers can get timely support from our team. The after-sales service platform we provide supports 24-hour communication, ensuring that customers can get in touch with us at any time.
We provide comprehensive technical support, including product installation, debugging, operation training, and troubleshooting. Our experienced team offers professional advice and solutions to ensure optimal product performance. For complex issues, we also provide remote diagnostics and on-site support.
For products within the warranty period or those with quality issues, we offer free repair or replacement services. Our repair services include fault diagnosis, part replacement, and system debugging to restore the product's original performance and minimize downtime.
We offer a full range of spare parts to ensure any component damage is promptly addressed. All parts meet factory standards and undergo strict quality testing to guarantee high quality and long-term stability.
We provide scheduled inspections and maintenance services based on customer needs. This includes performance assessments, component checks, seal inspections, and maintenance recommendations to prevent downtime and ensure optimal product performance.
To ensure efficient operation and maintenance, we offer professional training services. The training covers proper product use, daily maintenance, and handling common issues. We also provide regular workshops and online educational resources to help customers improve efficiency and reduce maintenance costs.
We have after-sales service centers in multiple countries and regions to meet the needs of customers worldwide. Our international service network offers local support, efficient logistics, and technical consultation to ensure seamless product integration and timely response globally.

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