A differential assembly has got various parts. The different differential assembly parts are mentioned below:
• Pinion Drive Gear: this part transfers the power to the ring gear from the drive shaft.
• Differential case assembly: this part holds the Ring gear along with other components which drive the rear drive axle.
• Ring Gear: this section transfers the power to the previous part that is Differential case assembly.
• Rear drive axles: these are the steel shafts which transfer the torque from differential case assembly to drive wheels.
• Axle housing: these are the metal body that encloses the rear axles and also supports the rear axle assembly.
• Rear axle bearings: these are the ball bearings which fit between the axle housing and the axles.
• Side gears: these gears help both the wheels to turn independently while turning.
How does the power flow in differential assembly?
• Drive shaft rotates the Pinion gear.
• The Pinion gear then becomes the bigger ring gear to produce a speed reduction.
• The Ring gear which is attached to the differential case hence starts to rotate along with the ring gear.
• The Differential case then turns the sun gears that are connected to the different axles.
• The Axles shift the power towards the wheels.
Functions of differential assembly
• It transfers the power from the drive shaft to all the wheels.
• It provides a final reduction in gear.
• It splits the amount of torque that is going to each of the wheels.
• It allows the wheels to rotate and spin at various speeds during turns.
Why a differential assembly part is required
Car wheels turn at different speeds while turning. The inside wheels always move lesser than the outside wheels. Hence the inner wheels travel a shorter distance. Also, the distance traveled by the front wheels is different from that of the rear wheels. Hence differential assembly part is required for helping the wheels to spin independently; otherwise, the wheels would lock.
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