Auto Oil Seal
In auto oil seal applications, lip seals secure the application from high pressures as they provide a tighter sealing action, automotive oil lip seals are available in a variety of configurations to support a wide range of industries and their different requirements . There are several types of oil lip seals. They are available in a variety of materials and sizes. They can be made with or without springs. The most commonly used oil lip seals include: External oil seal, Single oil seal, Dual oil seal, Flange Case oil seal, PTTE oil seal and more.If you have questions about car sealing, please contact us.
The oil seal is generally composed of three basic components: sealing element, metal shell and clamping spring.Types of oil seals include single and double lips, rubber or polymer, metal housing, spring loaded, and internal, external and axial guides.
The purpose of the sealing element is to stop the leakage of fluid between the shaft and the housing. The metal housing will give rigidity and strength to the sealing element when it is held in a bore or recess. The spring will help make the sealing element more effective. All materials must be selected according to the environment in which the oil seal will be placed.
1. Isolation of dust and prevention of leakage of hydraulic oil and gas.
2. Reciprocating operation to exclude contamination.
3. Double steel shell design, enhanced structure, enhanced ability to exclude dust, dirt and sludge.
4.Screw design to reduce friction, seal, exclude dust and protect axle and bearing from dust, grit, mud and other contamination.
| Crankshaft front seal | Super helix seal |
| Low-friction torque design | |
| Fluorine rubber | |
| Crankshaft rear seal | Super helix seal (seal with one-way two-step screw) |
| Low-friction torque design | |
| Fluorine rubber | |
| Plug tube gasket | High eccentricity-following lip shape |
| SIM method to prevent the spring from falling off (integral molding of spring and rubber) | |
| ACM rubber or another | |
| Valve stem seal | Machining of lip surface (stable oil drip under pressure) |
| Fkm/viton rubber | |
| Front pump input seal | Super helix seal (seal with one-way two-step screw) |
| ACM rubber | |
| Friction damper | Rubber torque prevents gear rattling noise |
| Compact design | |
| Fkm/viton rubber | |
| Bonded piston seal | Quick response (centrifugal hydraulic pressure canceling mechanism) throughout the rotation range |
| More compact thanks to the thin plate (uses a high-strength steel plate) | |
| Hydrogenated nitrile rubber |
O-rings: circular seals that fit into a groove and compress when the two halves of a joint are bolted together.
Gaskets: flat seals made from materials such as rubber, cork, or metal that are placed between two surfaces to prevent leakage.
Lip seals: dynamic seals that use a flexible lip to seal against a moving surface, such as a shaft or piston.
Mechanical seals: seals that use a stationary and a rotating component to create a barrier between two fluids or gases.
V-ring seals: seals that have a tapered cross section and are used to seal against a shaft or housing.
oil seals: seals that prevent the leakage of lubricants or other fluids from a rotating shaft or other moving part.
Industrial machinery, industrial motors, vehicle starter motors, gearboxes, multi-purpose seals, tarsal joint absorbers, hydraulic cylinders, cylinders, air pressure bars, shafts on vehicles, drive shafts, agricultural spare parts, engine crankshafts, camshafts, starters, trailers, heavy trucks, agricultural machinery, hubs of heavy machinery.
BENZ / IVECO Brake Chamber Cup
Custom HINO Hyundai / KIA ISUZU / MITSUBISHI / FUSOSUZUKI
TOYOTA / NISSAN/ HONDA / Peugeot
Mercedes-Benz
IVEVO / VOLVO / SCANIA
Renault/BPW
There are many different brands of automotive oil seals available in the market, each with its own set of characteristics and properties. Here are some of the commonly used brands for automotive oil seals, along with their properties:
| Brand | Quality | Material | Temperature Range | Chemical Resistance | Wear Resistance | Cost |
|---|---|---|---|---|---|---|
| SKF | High | Nitrile (Buna-N), Fluorocarbon (Viton), Silicone | -40°C to +200°C | Good resistance to petroleum-based oils and fuels, excellent resistance to chemicals | Excellent wear resistance | High |
| National | Medium-High | Nitrile (Buna-N), Fluorocarbon (Viton), Polyacrylate (ACM) | -40°C to +200°C | Good resistance to petroleum-based oils and fuels, some resistance to chemicals | Good wear resistance | Moderate to high |
| Timken | Medium-High | Nitrile (Buna-N), Fluorocarbon (Viton), Polyacrylate (ACM) | -40°C to +200°C | Good resistance to petroleum-based oils and fuels, some resistance to chemicals | Good wear resistance | Moderate to high |
| Corteco | Medium | Nitrile (Buna-N), Fluorocarbon (Viton) | -30°C to +200°C | Good resistance to petroleum-based oils and fuels, some resistance to chemicals | Good wear resistance | Moderate |
| NOK | Medium | Nitrile (Buna-N), Fluorocarbon (Viton), Polyacrylate (ACM) | -40°C to +200°C | Good resistance to petroleum-based oils and fuels, some resistance to chemicals | Good wear resistance | Moderate |
SKF is a high-quality brand of automotive oil seals, offering excellent wear resistance and a wide range of material options, including Nitrile (Buna-N), Fluorocarbon (Viton), and Silicone. SKF seals are known for their high performance and durability, making them a popular choice for demanding applications.
National and Timken are medium-high quality brands of automotive oil seals, offering good wear resistance and a range of material options, including Nitrile (Buna-N), Fluorocarbon (Viton), and Polyacrylate (ACM). These brands are known for their reliability and consistency, making them a popular choice for general automotive applications.
Corteco is a medium-quality brand of automotive oil seals, offering good wear resistance and a limited range of material options, including Nitrile (Buna-N) and Fluorocarbon (Viton). Corteco seals are known for their affordability and reliability, making them a popular choice for budget-conscious consumers.
NOK is a medium-quality brand of automotive oil seals, offering good wear resistance and a range of material options, including Nitrile (Buna-N), Fluorocarbon (Viton), and Polyacrylate (ACM). NOK seals are known for their durability and reliability, making them a popular choice for a variety of automotive applications.
We are NNK brand under NOK-CN, accept ODM and OEM. We have the ability to provide samples of disassembled products, develop molds, and carry out production. If you have any car oil seal problems, you are very welcome to leave us a message, we will arrange professional staff to communicate with you! NNK, a leading manufacturer with over 42 years of expertise, specializes in producing OE-quality seals for automotive and industrial applications. Known for high durability, NNK guarantees its oil seals to last up to 800,000 km and valve stem seals up to 120,000 km, with 100% Taiwan-quality assurance. Serving a global market, we supply large quantities of rubber parts and stamping parts for automotive maintenance plants, oil seal suppliers, and importers worldwide. Our factory, with 120 employees, offers fast, large-scale production and customization services, including mold development. NNK's product range includes auto oil seals, valve stem seals, O-rings, truck oil seals, and more—all produced with strict in-house quality control. With decades of experience and technical leadership, NNK is committed to providing reliable sealing solutions and exceptional service to every customer.
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