What is Automobile Motors O Rings
Automobile motors O rings is a common annular sealing element used to ensure that liquid or gas does not leak at the connection site.
Made of elastic material (such as rubber) with a ring-shaped cross-section. It is usually used to seal various connections in automobile motors to prevent leakage of liquid or gas.
In automotive motors, O-rings are commonly used to seal fluids such as lubricants, coolants, and fuels.
| Product name | Automobile Motors O Rings |
| Product material | Rubber/ Silicone/ Metallic/ Custom |
| Hardness (Shore A) | 20 to 90 |
| Applicable temperature °C | -60 to 300 |
| Product color | Black, orange, blue, yellow, green, custom |
| Product size | Standard/ Custom |
| Advantage | Wear resistance, high pressure resistance, high temperature resistance, corrosion resistance |
For example, O-rings can be used to seal engine oil pans, water pumps, fuel injectors, and more. Its main function is to ensure that liquid does not leak at the connection and maintain the sealing performance of the system, thereby ensuring the normal operation of the motor.
Structure and materials
O-ring seal has a circular cross-section, hence its name. It is often made of elastic materials, the most common materials are rubber, such as nitrile rubber (NBR), fluorine rubber (FKM) and silicone rubber (VMQ). These materials have good chemical and temperature resistance to adapt to the working environment of automotive motors.
Technical data
Material：Silicone
|
property
|
unit
|
test method
|
test parameter
|
value
|
|
hardness
|
IRHD
|
ASTM D 1415
|
60 ±5
|
|
|
tensile strength
|
MPa
|
ASTM D 412
|
6,8
|
|
|
ultimate elongation
|
%
|
ASTM D 412
|
275
|
|
|
specific gravity
|
g/cm3
|
ASTM D 297
|
1,35
|
|
|
compression set
|
%
|
ASTM D 395 B
|
22h / 175°C
|
14
|
|
low temp. resistance
|
°C
|
ASTM D 2137
|
brittleness
no cracks
after 3 min. at
|
-55
|
Functions and applications
O-ring seals are mainly used to seal the connection parts of automobile motors. It prevents liquid or gas leakage and ensures the sealing performance of the system. Common applications include:
Engine oil pan seal
The O-ring seal is used to seal the connection between the engine oil pan and the engine block to prevent engine oil leakage.
Water pump seal
O-ring seal is used at the connection of the water pump to prevent coolant leakage.
Fuel system sealing
O-ring seals are used in fuel injectors, fuel filters, fuel pumps, etc. to ensure the sealing performance of the fuel system.
Select and install
When selecting automotive motor O-ring seals, you need to consider the following factors:
Material selection
According to the specific application environment and media, select the appropriate rubber material to ensure chemical resistance and temperature resistance.
Size and Section Shape
Select the appropriate size and section shape to ensure proper sealing performance.
Installation precautions
Make sure the sealing ring is intact and installed correctly at the connection site. Take care to avoid pinching, stretching or twisting the seal.
Maintenance and replacement
O-ring seals are a consumable item that will age and become damaged over time and use. It is important to regularly check and maintain the health of your seals, especially when repairs or related parts are being replaced. If the sealing ring is found to be damaged, cracked or hardened, it should be replaced in time to ensure normal sealing effect.
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