Differential gear, in automotive mechanics, gear arrangement that permits power from the engine to be transmitted to a pair 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 road. On a straight street the wheels rotate at the same rate; when turning a corner the outside wheel offers farther to proceed and will turn faster than the inner steering wheel if unrestrained.
The components of the Ever-Power differential are proven in the Figure. The energy from the tranny is delivered to the bevel band gear by the drive-shaft pinion, both which are held in bearings in the rear-axle casing. The case is an open boxlike structure that’s bolted to the band gear possesses bearings to support one or two pairs of diametrically opposite differential bevel pinions. Each wheel axle is attached to a differential side gear, which meshes with the differential pinions. On a directly 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, and they all rotate as a unit with the case and ring gear. If the automobile turns to the left, the right-hand steering wheel will be forced to rotate faster than the left-hand wheel, and the side gears and the pinions will rotate relative to one another. The ring gear rotates at a acceleration that is equal to the mean velocity of the still left and correct wheels. If the wheels are jacked up with the tranny in neutral and among the wheels is turned, the contrary wheel will turn in the opposite path at the same quickness.
The Differential Gear torque (turning second) transmitted to both wheels with the Ever-Power differential may be the same. Therefore, if one wheel slips, as in ice or mud, the torque to the other steering wheel is reduced. This disadvantage can be overcome somewhat by the use of a limited-slide differential. In one edition a clutch connects one of the axles and the ring gear. When one wheel encounters low traction, its inclination to spin is definitely resisted by the clutch, thus providing higher torque for the various other wheel.
A differential in its most basic form comprises two halves of an axle with a gear on each end, linked with each other by a third gear creating three sides of a sq .. This is normally supplemented by a fourth gear for added power, completing the square.