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Notice- Handouts of slides are provided, considering the course syllabus and topics discussed in class.  Students should refer to the prescribed textbooks, for thorough understanding of these concepts and detailed explanation. DRIVE TO WHEELS Drive Thrust  The driving torque produced in the engine - primarily responsible for producing driving thrust in the rear road wheels.  It has to be transferred from the rear axle housing to the chassis frame  It can be accomplished through, either  Strong rear springs  Thrust-taking member such as radial rod. Side thrust  The rear axle is invariably subjected to side thrust or pull, when the rear wheels experience any side load.  Such situation arises due to cornering force when the vehicle is negotiating a curve, or when the vehicle is moving over uneven ground.  To withstand the side thrust and to hold the axle in its desired position, the following provisions are generally made.  Taper roller or ball-thrust bearings are used for rear wheel, and  ‘Panhard rod’ is used between the axle casing and the frame Torque Reaction  When the Rear axle is held rigidly- the road wheels are prevented from rotation, due to driving needs or road conditions, the bevel pinion of the final drive tends to rotate around the crown wheel. It produces a tendency in the whole vehicle to rotate about t he rear axle or to lift-off the front of the vehicle. This effect is known as torque reaction.

2-Drive to Wheels

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