Final drive
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Final drive is a gear reduction unit in the power trains between the Differential and the Drive wheels. Final drive transmits the power finally to the rear axle and the wheels. The tractor rear wheels are not directly attached to the half shafts but the drive is taken through a pair of spur gears. Each half shaft terminates in a small gear which meshes with a large gear called Bull gear. The Bull gear is mounted on the shaft carrying the tractor rear wheel. The device for final speed reduction, suitable for tractor rear wheel is known as Final drive mechanism.
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Last modified: Tuesday, 6 March 2012, 6:43 AM