Differential

DIFFERENTIAL

DESCRIPTION

NOTE: The Quaife ATB Differential is serviced only as a complete assembly. The only serviceable components are the ring gear and tapered roller bearings. No other component replacement will be possible.








The Quaife Automatic Torque Biasing (ATB) Limited Slip Differential (Fig. 88) (Fig. 89) is a performance-oriented unit which is designed to provide traction to both drive wheels during all driving conditions.

A billet differential gear body houses two helical sun gears which are splined to the front axles. Each sun gear is in mesh with its own set of (6) helical planetary pinion gears which provide differential action during turning and cornering maneuvers. A center pack consisting of belleville spring washers sandwiched between a pair of spring housings apply pressure to the the sun gears. The unit is supported by tapered roller bearings.

This design prevents the complete loss of drive that occurs with a conventional "open" differential when one wheel slips.

OPERATION
The Quaife Automatic Torque Biasing Differential is a Limited-Slip design that behaves like an open differential during normal driving situations. During aggressive driving maneuvers (straight-line hard acceleration, hard cornering) it senses which wheel has better grip, and biases power to that wheel smoothly and consistently, without removing power from the other wheel.

In the event of wheel slip, torque bias is generated by the axial and radial thrusts of the pinions in the pockets. The resultant friction force enables the driving road wheel and sun gear to transmit a greater proportion of the torque. This is a progressive action, yet at no stage will the differential ever lock.

This differential also controls loss off traction when the drive wheels are on slippery surfaces such as ice, snow, or mud, providing the appropriate biased traction needed to overcome these adverse conditions.