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The Main Components Of Chassis

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2.1. Chassis Frame:
Chassis is the main part for all the components including the body to carry the whole weight. The word chassis comes from a French term and was initially used to denote as the basic structure of the vehicle. Chassis is considered as the back bone of the vehicle. The components of the vehicle like motor, transmission system and axles, wheels and tires, suspension systems, braking systems, steering etc., and also electrical system parts are mounted on the Chassis frame.

Layout of Chassis and its main Components:

Figure: Layout of chassis of our electric vehicle (EV).

The main components of the Chassis are:
1. Frame: It is made up of long two members called side members riveted together with the help of number of cross members.
2. Engine or Power …show more content…

Construction and operation of Drum Brakes:
The main components of drum brakes are
1. Backing plate: The backing plate provides a base for the other components. It attaches to the axle sleeve and provides a non-rotating rigid mounting surface for the wheel cylinder, brake shoes, and assorted hardware. Since all braking operations exert pressure on the backing plate, it must be strong.
2. Brake drum: The brake drum is generally made of a special type of cast iron that is heat-conductive and wear-resistant. It rotates with the wheel and axle. When a driver applies the brakes, the ensuing friction slows or stops rotation of the wheel and axle, and stops the vehicle.
3. Brake shoes: The brake shoes contact the rotating drum for braking option providing lining on their outer surfaces.
4. Brake Liners
5. Retaining springs: The retaining is spring is provided for bringing the brake shoes back to its original position after releasing the break pedal.
6. Cam: The cam is used to lift the brake shoes at one end, other end is connected by some method so as to make as the brake sleeve come into contact
7. Brake Linkages
All these parts are fitted in the back plate and enclosed with brake

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