Differential Gear

Differential gear, in auto mechanics, gear arrangement that allows power from the engine to be transmitted to a set of traveling wheels, dividing the force equally between them but permitting them to follow paths of different lengths, as when turning a corner or traversing an uneven street. On a straight road the tires rotate at the same rate; when turning a part the outside wheel provides farther to move and can turn faster than the inner steering wheel if unrestrained.

The elements of the Ever-Power differential are shown in the Figure. The energy from the tranny is delivered to the bevel ring equipment by the drive-shaft pinion, both of which are held in bearings in the rear-axle housing. The case is an open boxlike framework that’s bolted to the ring gear possesses bearings to support a couple of pairs of diametrically reverse differential bevel pinions. Each wheel axle is attached to a differential side equipment, which meshes with the differential pinions. On a straight road the wheels and the side gears rotate at the same acceleration, there is no relative motion between your differential part gears and pinions, plus they all rotate as a device with the case and band gear. If the vehicle turns to the left, the right-hand wheel will be required to rotate faster compared to the left-hand wheel, and the Differential Gear medial side gears and the pinions will rotate relative to each other. The ring gear rotates at a acceleration that is add up to the mean speed of the left and right wheels. If the tires are jacked up with the tranny in neutral and among the tires is turned, the contrary wheel will turn in the opposite direction at the same rate.

The torque (turning second) transmitted to both wheels with the Ever-Power differential may be the same. Therefore, if one steering wheel slips, as in ice or mud, the torque to the other wheel is decreased. This disadvantage can be overcome somewhat by the use of a limited-slide differential. In one version a clutch connects among the axles and the band gear. When one wheel encounters low traction, its tendency to spin is certainly resisted by the clutch, hence providing higher torque for the additional wheel.
A differential in its most basic form comprises two halves of an axle with a gear on each end, linked together by a third gear making up three sides of a sq .. This is normally supplemented by a fourth gear for added power, completing the square.