How Many Rubber Parts Are There in a Car? What Kinds of Rubber Are Used in Each Rubber Part?

How Many Rubber Parts Are There in a Car? What Kinds of Rubber Are Used in Each Rubber Part?

Automobiles contain a large number of rubber parts that play a vital role in the overall vehicle structure and function. In addition to tires, rubber parts are mainly found in the following systems, including sealing system, suspension system, transmission system, braking system, cooling system, fuel system, interior and exterior parts. The following is a detailed list of the main rubber parts and rubber types in automobiles.

I. Rubber parts in sealing system

The rubber parts of the sealing system need to have good elasticity, weather resistance and aging resistance, so the following rubber materials are commonly used in these parts:

1. Door seals: EPDM rubber (ethylene propylene rubber) is used because it has excellent weathering, ozone and heat resistance, as well as good elasticity.

2. Window seals: EPDM rubber is the main material, which is effective in waterproofing, windproofing and soundproofing.

3. Engine compartment seals: EPDM rubber or neoprene (CR) is used for its heat and oil resistance.

4. Luggage compartment seals: using EPDM rubber, heat-resistant, cold-resistant, and not easy to aging for long-term use.

5. Sunroof seals: Silicone rubber is mostly used because it has excellent heat resistance (stable under high temperature conditions) and weather resistance.

6. Engine cylinder head seals: the use of fluorine rubber (FKM), this material has a very high heat resistance (up to 200 ° C or more) and chemical resistance.

7. Door impact seals: EPDM rubber is commonly used and can withstand frequent door opening and closing vibrations and temperature changes.

II. Rubber parts in suspension system

The rubber parts of the suspension system need high strength, abrasion resistance and fatigue resistance, and the following materials are commonly used:

1. Suspension bushings: natural rubber (NR) and styrene-butadiene rubber (SBR), which have good elasticity and fatigue resistance.

2. Shock absorber rubber seat: natural rubber (NR) is used because of its excellent elasticity and shock resistance.

3. Stabilizer bar rubber bushings: natural rubber (NR) or nitrile rubber (NBR), which need to be abrasion-resistant and able to withstand high-strength compression.

4. Swing arm bushing: Neoprene rubber (CR) or Styrene-Butadiene rubber (SBR), because of its wear resistance and aging resistance.

5. Spring spacer: Nitrile rubber (NBR) or natural rubber (NR) is used to absorb shock and provide cushioning.

6. Vibration isolation block of suspension system: natural rubber (NR) is preferred, with good shock absorption and anti-fatigue properties.

III. Rubber parts in the driveline

Transmission system rubber parts need oil resistance, abrasion resistance and fatigue resistance. Common materials include:

1. Drive shaft dust cover: using neoprene (CR) or nitrile rubber (NBR), with excellent oil resistance and aging resistance.

2. Engine mount rubber mats: natural rubber (NR) and neoprene (CR), they can effectively absorb vibration.

3. Gearbox mount rubber pads: Neoprene (CR) is mostly used due to its oil resistance, heat resistance and aging resistance.

4. Clutch disk vibration damping rubber block: using natural rubber (NR) or nitrile rubber (NBR), need good oil resistance and vibration damping performance.

5. Transmission belt (belt): use neoprene rubber (CR) or EPDM rubber, which can resist high temperature and abrasion.

IV. Rubber parts in the brake system

The rubber parts of the braking system need to have good sealing and high temperature resistance, and the following materials are commonly used:

1. Brake master cylinder sealing ring: the use of nitrile rubber (NBR) or fluoroelastomer (FKM), excellent oil resistance and sealing.

2. Brake sub-pump seals: nitrile rubber (NBR) or fluorine rubber (FKM), high pressure and temperature resistance.

3. Brake hose: mostly neoprene rubber (CR), which is both oil resistant and can withstand the corrosion of brake fluid.

4. Brake pedal rubber pads: the use of styrene-butadiene rubber (SBR), good anti-slip performance.

5. Brake caliper dust cover: using silicone rubber or neoprene rubber (CR), which can withstand high temperature.

6. Handbrake cable rubber cover: using neoprene rubber (CR), excellent abrasion resistance.

V. Rubber parts in the cooling system

Rubber parts in the cooling system need to be resistant to high temperature and corrosion. The main materials include:

1. Water hose hose: EPDM rubber is the main material, which can resist high temperature and chemical corrosion of coolant.

2. Radiator rubber gasket: natural rubber (NR) or neoprene (CR) is used, which has good anti-vibration performance.

3. Water pump sealing ring: use fluorine rubber (FKM), because of its resistance to high temperature and corrosion.

4. Thermostat sealing ring: more use of fluorine rubber (FKM) or silicone rubber, chemical corrosion resistance and high temperature resistance performance is excellent.

VI. Rubber parts in fuel system

Rubber parts in the fuel system need to be highly resistant to oil and corrosion. The main materials are:

1. Fuel hose: Nitrile rubber (NBR) or Hydrogenated Nitrile Rubber (HNBR) with excellent oil resistance.

2. Fuel pump sealing ring: using fluorine rubber (FKM), with the best fire and oil resistance.

3. Fuel tank vent pipe rubber sleeve: use nitrile butadiene rubber (NBR), able to resist the corrosion of fuel vapor.

4. Injector nozzle sealing ring: fluorine rubber (FKM), remains stable under high temperature and high pressure conditions.

VII. Rubber parts inside the car

Rubber parts inside the car need to be comfortable, non-slip and wear-resistant. Common materials include:

1. Waterproof rubber mat under the carpet: using natural rubber (NR) or styrene-butadiene rubber (SBR), good waterproof performance.

2. Pedal rubber mats: SBR, wear-resistant and anti-slip.

3. Steering wheel non-slip mat: mostly silicone rubber or styrene-butadiene rubber (SBR), soft and not easy to slide.

4. Seat Slide Rubber Mats: Natural rubber (NR) is used to provide good sliding damping.

5. Dashboard anti-slip mats: mostly silicone rubber, soft and wear-resistant.

VIII. Exterior Rubber Parts

Outside the car rubber parts need to be weather and wear resistance, commonly used materials include:

1. Wiper blade rubber: the use of natural rubber (NR) or neoprene (CR), wear-resistant and flexible.

2. Anti-collision strips: using neoprene rubber (CR), impact resistance and anti-aging.

3. Antenna base rubber mat: using EPDM rubber, aging and UV resistance.

4. Lamp seals: mostly silicone rubber or EPDM rubber.

5. Fender rubber mat: using natural rubber (NR) or styrene-butadiene rubber (SBR), wear-resistant.

IX. Other parts in the rubber parts

1. Door hinge rubber mat: use neoprene rubber (CR), wear-resistant and pressure-resistant.

2. Trunk support bar rubber bushings: natural rubber (NR), excellent elasticity.

3. Sunroof rail rubber slider: EPDM rubber or silicone rubber, providing good sliding performance.

4. Exhaust pipe lug rubber: neoprene rubber (CR), high temperature and vibration resistant.

Different rubber materials are selected based on their properties, such as heat, oil, weather or abrasion resistance, to meet the functional requirements of various automotive components.