Products Description
NBR 90 Hardness Hydraulic Piston Dust Seals
Material composition
NBR: Nitrile rubber, is widely used in the field of automotive parts sealing due to its excellent oil resistance, wear resistance, and aging resistance.
Hardness: 90 Shore A degrees, indicating that the dust ring has good hardness characteristics and is suitable for bearing a certain pressure.
Performance parameters
- Operating temperature range: -40°C to +120°C, able to adapt to extreme temperature changes.
- Tensile strength: ≥10 MPa, showing good physical strength.
- Tear strength: ≥30 N/mm, with high tear resistance.
- Compression permanent deformation: ≤25%, can maintain shape even in a compressed state.
Main functions
- Dustproof seal: effectively blocks external dust and impurities, and protects key parts inside the tensioner.
- Waterproof seal: has a certain waterproof performance to prevent water from penetrating and causing internal corrosion.
- Extended life: Good sealing performance helps to extend the service life of the tensioner assembly.
Applications
Automobile engine tensioner assembly: widely used in the belt drive system of automobile engines, such as alternators, water pumps, etc.
Other rotating bearings and mechanical seals: suitable for other occasions requiring dustproof and waterproof seals
product key technologies
NBR 90:
Made of Nitrile Butadiene Rubber (NBR), this material is known for its excellent oil resistance, wear resistance, and aging resistance.
Hardness: 90 Shore A degrees, indicating that the dust ring has good hardness characteristics and is suitable for bearing a certain pressure without being easily deformed.
NBR 90 Hardness Hydraulic Piston Dust Seals
Dustproof
The dustproof seal is located outside the active parts of the tensioner, which can effectively prevent dust and impurities from entering the interior.
This is very important for protecting the tensioner's rolling bearings, seals, and other key parts.
Waterproof
The dustproof seal also has a certain waterproof performance, which can prevent moisture from penetrating the tensioner and avoid rust and corrosion of internal parts.
Products FAQ Description
1. What is the temperature range of NBR90 dust seals?
NBR90 dust seals usually have a wide operating temperature range, generally -40°C to +120°C.
2 . How does the hardness of NBR90 dust seals affect their performance?
The hardness of NBR90 dust seals is 90 Shore A degrees, which provides them with good physical properties such as tensile strength and tear strength while maintaining a certain degree of elasticity to adapt to different working environments.
3. How to choose the right NBR90 dust seal?
Choosing the right NBR90 dust seal requires considering its working conditions, including temperature, pressure, chemical media, etc. In addition, the size and installation requirements of the dust seal need to be considered to ensure that it is installed correctly and performs optimally.
4. What is the maintenance and replacement cycle of NBR90 dust seals?
The maintenance cycle depends on the use environment and working conditions. Generally speaking, if the dust seal is worn, aged, or damaged, it needs to be replaced. Regular inspection can help determine the timing of replacement.
5 . Is the NBR90 dust seal suitable for all types of tensioners?
NBR90 dust seals are generally suitable for many types of tensioners due to their material properties. However, the specific application needs to consider the design of the tensioner and the working environment to ensure the compatibility and performance of the dust seal.
6 . What are the failure symptoms if the NBR90 dust seal is damaged?
A damaged NBR90 dust seal may lead to a decrease in sealing performance, which may cause the intrusion of dust and impurities. In addition, problems such as reduced tensioner performance, increased noise, or premature wear of the equipment may occur.
7 . What should be paid attention to when installing the NBR90 dust seal?
When installing the NBR90 dust seal, it is necessary to ensure that it is correctly positioned to avoid distortion or damage. At the same time, the installation groove should be checked to be clean and free of burrs or foreign matter to ensure that the dust seal can be installed correctly and play the expected sealing effect.
8. Is the NBR90 dust seal susceptible to chemical media?
NBR material has good oil resistance and resistance to most chemical media but may perform poorly in the face of specific chemicals such as polar solvents, ethylene glycol-based brake fluids, and low-molecular organic acids. Therefore, when selecting an NBR90 dust seal, you need to consider its compatibility with chemicals that may be present in the working environment
Application: excavators, loaders, graders, dump trucks, forklifts, bulldozers, scrapers, mining trucks, cranes, aerial vehicles, garbage transfer vehicles, sliding cars, agricultural machinery, logging equipment, etc. (NBR 90 Hardness Hydraulic Piston Dust Seals)
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