Differential gear, in auto mechanics, gear arrangement that allows power from the engine to be transmitted to a set of generating wheels, Differential Gear dividing the force equally between them but permitting them to follow 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 corner the outside wheel offers farther to go and will turn faster than the inner steering wheel if unrestrained.

The components of the Ever-Power differential are shown in the Figure. The energy from the transmitting is delivered to the bevel band gear by the drive-shaft pinion, both which are kept in bearings in the rear-axle casing. The case can be an open boxlike structure that’s bolted to the band gear and contains bearings to support one or two pairs of diametrically opposing differential bevel pinions. Each steering wheel axle is attached to 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 swiftness, there is absolutely no relative motion between your differential part 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 required to rotate faster compared to the left-hand steering wheel, and the side gears and the pinions will rotate in accordance with one another. The ring gear rotates at a quickness that is add up to the mean speed of the still left and correct wheels. If the tires are jacked up with the transmission in neutral and among the tires is turned, the contrary wheel will submit the opposite direction at the same velocity.

The torque (turning moment) transmitted to both wheels with the Ever-Power differential is 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 relatively by the utilization of a limited-slip differential. In one edition a clutch connects among the axles and the ring gear. When one wheel encounters low traction, its tendency to spin is definitely resisted by the clutch, hence providing greater torque for the other wheel.
A differential in its most basic form comprises two halves of an axle with a equipment on each end, linked together by a third gear creating three sides of a sq .. This is usually supplemented by a fourth gear for added strength, completing the square.