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This section provides an overview for dust seals as well as their applications and principles. Also, please take a look at the list of 7 dust seal manufacturers and their company rankings. Here are the top-ranked dust seal companies as of December, 2024: 1.Trelleborg Sealing Solution.
Table of Contents
Dust Seal is used to protect packing and bearings by preventing harmful particles from entering. As the name "dust seal" implies, it seals up, or prevent internal intrusion. It is also sometimes referred to as "packing".
Dust Seals are used in a variety of fields, from industrial machinery to automotive parts, where they are attached to moving parts.
Specifically, they are attached to shafts that rotate and cylinders that move in a linear motion.
Smooth operation, long life, and reliability are important for the moving parts of various machines. For this reason, Dust Seals are available in a variety of materials and shapes, depending on the operating temperature, anticipated harmful substances, and mechanical strength.
In addition, Dust Seals are used to protect the interior at the outermost part of the equipment and must be replaced on a regular basis.
Dust Seals are important components used in a wide range of applications, from industrial machinery and automobiles to the aerospace industry.
The reason for this is to prevent the ingress of foreign matter through gaps in operating components and to ensure the longevity, performance, and reliability of systems.
This reduces costs for maintenance and improves the efficiency of the entire machinery system.
Typical examples in the field of industrial machinery are motors represented by pumps, gearboxes, and electric actuators.
Exposure to contaminants such as dust and dirt, especially in components containing rotating shafts, accelerates wear and causes reduced efficiency. In addition, in processing machines such as CNC machines, it leads to a decrease in machining accuracy.
In the automotive field, this includes axle bearings, suspensions, and drive trains. All of these parts are susceptible to dust, dirt, and moisture. Protecting them ensures their function and vehicle safety.
In the aerospace industry, sealing is critical.
Actuators that operate under hydraulic and pneumatic pressure require a contaminant-free environment to ensure seamless function.
Dust Seals are used to prevent the entry of harmful substances from the outside, but they also play an important role in ensuring the longevity, performance, and reliability of a wide variety of mechanical systems.
The basic principle behind the construction of Dust Seals is based on the idea that they effectively seal (protect) machine parts from external substances such as particles, dust, dirt, moisture, and contaminants.
Since these seals are attached to moving parts, they must also be designed with friction in mind.
Both sealing and low-friction properties must be established in a well-balanced manner to ensure functionality.
To ensure this balance, Dust Seals are available with a "lip" cross-sectional shape or a "labyrinth" shape with an internal structure that resembles a labyrinth.
A typical oil seal has a lip shape.
The construction is simple: a flexible lip contacts a rotating shaft or component, and the lip repels intrusion from the outside, thereby ensuring sealing performance.
Since the lip is subject to sliding, lubrication may be required to reduce the friction and heat generated by this.
Materials vary and must be selected for durability, flexibility, and resistance to environmental factors.
Labyrinth seals are used on machines that are subjected to high speeds and harsher environments.
Labyrinth seals have an internal labyrinth-like barrier that prevents harmful substances from passing through the seal.
Compared to lip seals, labyrinth seals have a higher initial cost but offer superior sealing and durability.
Most Dust Seals are press-fit, so care must be taken to ensure that they are installed in the correct direction.
Dust Seals are mainly made of rubber-based materials.
Typical materials are molded from nitrile rubber, urethane rubber, and fluoro rubber.
Nitrile rubber is characterized by its low cost and high versatility. On the other hand, it has limitations in weather resistance and temperature conditions. A disadvantage is that it is particularly vulnerable to direct sunlight and easily deteriorates when used in areas exposed to sunlight.
Urethane rubber is characterized by the best abrasion resistance among synthetic rubbers. It tends to be used for industrial goods that involve intense movement due to its high mechanical strength, high elasticity, and high energy absorption capacity.
Fluoroelastomers are used in hydraulic cylinders and outdoor applications because of their resistance to chemicals and heat.
Dust Seals are manufactured by press molding. Rubber raw materials and hardeners or compounding agents are kneaded together to create a rubber material called compound. The rubber material is poured into the mold and subjected to heat and pressure, which causes a sulfur cross-linking reaction, vulcanization, and molding at the same time. The molded Dust Seal is removed from the mold and deburred. The dust seal is further heated for secondary vulcanization.
*Including some distributors, etc.
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TransTec is based in Milan, Ohio, and is an American manufacturer of automotive replacement parts that was originally established in 1978 before being acquired by Freudenberg-NOK in 1989. The company offers a wide selection of power steering, transmission, and heavy-duty components. These products include automatic transmission and power steering seal kits, electro hydraulic power steering pump kits, and electrical case connector seals. The company provides technical support and consultation services for its client truck manufacturers, automotive repair shops, and race/performance enthusiasts.
Forbo Movement Systems is based in North Carolina since 1919 and is known as the manufacturer and distributor of conveyor belts, power transmission belts, and modular belting solutions. The company also deals in plastic modular belts, timing and flat belts made of synthetic materials,, and processing belts. These have various applications in a wide range of industries. Such as the food belts are used for dough processing, packaging, for seafood, meat and poultry processing and etc. Other industries that benefit include the logistics and the airports for baggage handling and also the textile industry, printing industry, and lots more.
Fuji Latex was founded in 1949 and is a manufacturer of latex products based in Chiyoda, Tokyo, Japan. The company is split into two division, the Motion Control Technology and Healthcare products. Motion Control Technology division produces shock absorbers, rotary dampers, and vane dampers. These products are used in various applications such as industrial systems, automotive interiors, and healthcare. Healthcare division manufactures various latex products such as condoms, probe covers, and lotion. The company has obtained the vertifivcation of ISO 9001, ISO 14001, and ISO 13485.
JTEKT was born from the merger of bearing maker Koyo Seiko and machine tool maker Toyoda Machine Works. JTEKT focuses on environmental sustainability to create automotive-specific components as well as industry-agnostic components including sensors, gears, displays, storage devices, and hydraulic units. JTEKT also creates and designs machine tools and equipment necessary for machine production. JTEKT is also developing "internet of everything" (IoE) solutions for modern industry.
Trelleborg Sealing Solutions is based in Sweden and was established in 1952 under the name Polymer Sealing Solutions until it officially got its name in 2007, known as a manufacturer and supplier of precision seals, bearings, and tailor-made polymer components. The company also develops and produces silicon, thermoplastic, PTFE, and elastomer technologies, including composite ones for various automotive, medical, aerospace, and general applications. The company maintains a global presence, with a worldwide network of manufacturing facilities, research and development centers, and sales offices to provide localized support, rapid product delivery, and tailored solutions to customers worldwide.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Trelleborg Sealing Solution |
100.0%
|
Derivation Method
The ranking is calculated based on the click share within the dust seal page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
3 | 60.0% |
|
United States of America
|
2 | 40.0% |
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