Differential gear, in auto mechanics, gear arrangement that allows power from the engine to be transmitted to a set of generating wheels, dividing the force equally between them but permitting them to check out paths of different lengths, as when turning a corner or traversing an uneven road. On a straight street the wheels rotate at the same acceleration; when turning a part the outside wheel provides farther to proceed and will turn faster than the inner wheel if unrestrained.
The components of the Ever-Power differential are demonstrated in the Figure. The energy from the transmission is sent to the bevel ring equipment by the drive-shaft pinion, both which are kept in bearings in the rear-axle casing. The case is an open boxlike framework that is bolted to the ring gear possesses bearings to support a couple of pairs of diametrically opposite differential bevel pinions. Each steering wheel axle is mounted on a differential side gear, which meshes with the differential pinions. On a straight road the tires and the medial side gears rotate at the same acceleration, there is no relative motion between your differential side gears and pinions, plus they all rotate as a device with the case and ring gear. If the automobile turns left, the right-hand steering wheel will be forced to rotate faster Differential Gear compared to the left-hand steering wheel, and the medial side gears and the pinions will rotate relative to one another. The ring gear rotates at a quickness that is equal to the mean rate of the remaining and correct wheels. If the tires are jacked up with the transmitting in neutral and one of the wheels is turned, the contrary wheel will submit the opposite path at the same velocity.
The torque (turning moment) transmitted to the two wheels with the Ever-Power differential may be the same. As a result, if one wheel slips, as in ice or mud, the torque to the other steering wheel is decreased. This disadvantage could be overcome somewhat by the use of a limited-slide differential. In one edition a clutch connects one of the axles and the band gear. When one steering wheel encounters low traction, its inclination to spin is certainly resisted by the clutch, thus providing better torque for the other wheel.
A differential in its most elementary form comprises two halves of an axle with a gear on each end, connected together by a third equipment making up three sides of a square. This is normally supplemented by a fourth gear for added strength, completing the square.