Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of heavy duty wheel seals in China, also supports customized service. Please feel free to buy high quality heavy duty wheel seals for sale here from our factory.
Products Description
| Chemical Composition:Acrylonitrile/Butadiene Rubber | |||||||||||
| Physical form :O-Rings/Moldings | |||||||||||
| Color :Black | |||||||||||
| Odor :None | |||||||||||
| Storage stability* :±7 years | |||||||||||
| *:Following IS02230 conditions | |||||||||||
| 3. Physical Properties | |||||||||||
| Test Method | Norm | Test Values | |||||||||
| Hardness | ISO 48 Method M | 80±4 IRHD | |||||||||
| Tensile Strength at break | ISO 37 | 14,3 | |||||||||
| Elongation at break | IS037 | 488% | |||||||||
| Specific Weight | ISO 2781 | 1,26 | |||||||||
| Compression Set 25%compression -22h/100℃ on slab on O-Ring (3,53 mm) |
ISO 815 IS0815 |
max 128% max 19% |
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| Heat Ageing 70h/100℃ Hardness Change |
ISO 188 | max+6° | |||||||||
What is Heavy Duty Wheel Seals
Heavy-duty wheel seals can be classified into AP type, CRS type, and ST type. Mainly used in engineering machinery, mining equipment, trucks, buses, and other environments. Compared with the TC type, the special internal lubrication design makes it close to the rotating shaft seal and bearing assembly, effectively preventing external dirt. The specially designed multi-lip inside the seal enables it to achieve this function. The multiple outer sealing lip design effectively prevents external dirt and grease from leaking and infiltrating, and the internal high-quality grease can prevent mud and water immersion.
Features of Heavy Duty Wheel Seals
1. Suitable for trucks, buses, trailers, and off-road applications.
2. Independent additional axial and radial dust lips.
3. Patented spring-loaded axial scale removal sealing lip.
4. Traditional "R-Safe" sealing lip configuration.
5. Use a stainless steel oil linger as the running surface of the iron shell national standard seal.
6. Elastic materials optimized for friction.
7. It can reduce power loss, improve fuel efficiency, and has the advantage of low friction.
8. Long service life, long startup time, and low operating cost.
Function
The main function of heavy duty wheel seals is to prevent lubricating oil or butter and other substances inside the wheels from leaking when the car is running. At the same time, it prevents external dust, dirt, and water from entering the inside of the wheels, and keeps the wheels clean and lubricated. In addition, wheel seals can also reduce air resistance when the car is driving, improving the car's fuel economy and driving stability.

Classification
1. Wheel axle seal: The wheel axle of a heavy-duty vehicle is a key component connecting the wheels to the vehicle chassis. The main function of the wheel axle seal is to prevent lubricating oil, hydraulic oil, or other liquids from leaking from the connection points of the wheel axle, ensuring the normal lubrication and operation of the wheel axle.
2. Wheel bearing seal: Wheel bearing is an important component that supports wheel rotation. The seal can prevent dust, impurities, moisture, etc. from entering the inside of the bearing, maintain the lubrication and working condition of the bearing, and extend the service life of the bearing.
3. Brake system sealing: The brake system of heavy-duty vehicles includes brake discs, brake pads, brake cylinders, and other components. Seals are used to ensure reliable sealing of the hydraulic transmission part of the brake system, prevent hydraulic oil leakage, and ensure the normal operation and safety performance of the brake system.
4. Wheel hub seal: The wheel hub of heavy-duty vehicles is the component that connects the wheel to the vehicle. The wheel hub seal is mainly used to prevent external dust, moisture, etc. from entering the wheel hub, and to protect the wheel hub bearings and other key components.
5. Tire airtight seal: The tire airtight seal of heavy-duty vehicles is used to ensure the sealing of the gas inside the tire, prevent air pressure leakage, and maintain the normal operation of the tire. This is crucial for the suspension and driving stability of heavy vehicles.
Certification



Material selection
When selecting the material for your heavy duty wheel seals, there are several factors to consider:
1. Temperature resistance: Seals need to maintain their performance at various temperatures, especially considering that when the vehicle is driving, the seals may come into contact with components of different temperatures.
2. Chemical corrosion resistance: Seals need to be able to resist corrosion from oil, water, and other chemicals that may come into contact with them.
3. Mechanical strength: Seals need to have a certain mechanical strength to withstand the vibration and impact during vehicle driving.
4. Wear resistance: Seals need to have good wear resistance to resist wear, especially during frequent opening and closing processes.
■ Nitrile rubber is one of the most common sealing materials. It has good elasticity and pressure resistance and is suitable for most automotive sealing purposes. However, it has poor weather and ozone resistance, so it is not suitable for use in high-temperature and ozone environments.
■ Styrene-butadiene rubber is another common sealing material. It has the characteristics of high-temperature resistance, ozone resistance, and oil resistance, so it is suitable for use in harsher environments. The disadvantage of synthetic rubber is that it is less elastic and prone to cracking.
■ Special rubber is a sealing material with special properties, such as fluorine rubber, silicone rubber, etc. These rubber materials have excellent properties such as high-temperature resistance, oil resistance, and chemical corrosion resistance, and are suitable for demanding application scenarios.
Rubber properties
| Type | Advantages | Limitations |
|---|---|---|
| NBR |
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| FPM (VITON) |
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| SIL |
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| SBR |
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Shaft RPM, surface speed, and seal material application:

FAQs

What is a heavy-duty wheel seal?
Heavy-duty wheel seals are sealing components for wheel bearings used in heavy-duty vehicles such as trucks, buses, trailers, and off-road applications.
What materials are used for heavy duty wheel seals?
The materials of heavy-duty wheel seals mainly include nitrile rubber, styrene-butadiene rubber, fluororubber, etc. These materials have high temperature resistance, oil resistance, wear resistance and other properties, and can meet the sealing requirements of heavy-duty wheels.
How to choose the right heavy-duty wheel seal?
Choosing a suitable wheel seal requires considering factors such as vehicle usage, driving environment, bearing size and specification, etc. Generally speaking, it is necessary to select a seal that matches the bearing and ensure that it has sufficient high-temperature resistance, oil resistance, wear resistance, etc., and must comply with the manufacturer's installation and maintenance requirements.
What are the causes of damage to heavy duty wheel seals?
Reasons for damage to heavy-duty wheel seals may include incorrect installation, irregular use, material aging, bearing damage, etc. If the seal is found to be damaged, it needs to be replaced in time and the bearings and other related components should be checked for problems.
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