What does differential assembly parts do?

Sonablw
Sonablw
Jul 22, 2017 · 2 min read

The differential assembly components distribute an equal amount of torque on both the wheels. These elements react to traction or resistance to allow the wheels with more traction or resistance for less rotation and the wheels with less resistance or traction to rotate faster. It is required in the turns where the inner wheels should turn less than the outer wheels.

The rpm difference between right and left that is created by the differential parts is always proportional. If the inner tire rotates 16 rpm less than going straight in turn then the outer tire will rotate 16 rpm in turn more than going straight.

Parts of differential assembly

The differential assembly has got the following parts:

• flange

• side gears

• side bearings

• pinion gears

• ring gear

• pinion (spider) gears

• pinion bearings

• differential case

• right axle shaft

• left axle shaft

Functions of differential assembly parts in a rear wheel drive vehicle

The differential assembly parts have three services:

• The first function is to redirect the flow of power to drive the rear wheels. This power flow should make a turn of 90° between the rear wheels and the shaft assembly, which is accomplished by the ring gears and drive pinion.

• The second function is to multiply the engine power in the process, thereby reducing the speed at the output. If there is no gear reduction, then the vehicle will accelerate quite slowly, and the gas mileage will be harmed as the engine may not reach its most efficient rpm range. That’s why the drive pinion and the ring, provides a reduced speed by design, at its output.

• The third function is to let the vehicle to make smooth turns. If the differential assembly does not allow the rear wheels to make different speeds during turns, then one tire may lose resistance with the ground while taking corner turns. The differential assembly consists of numerous parts.

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