TM 5-3805-258-24-1P O W E R T R A INNOSPINS Y S T E M S O P E R A T I O NDIFFERENTIAL GROUPNOSPIN DIFFERENTIAL GROUP1. Bevel gear. 2. Case. 3. NoSpin differential. 4. Bevel pinion.The NoSpin differential group has a bevel gear(1), a case (2), a NOSPIN differential (3) and abevel pinion (4).The flow of power from the transmission throughthe differential is:. . . From the transmission through the rear driveshaft to bevel pinion (4).... From bevel pinion (4) to bevel gear (1).. . . From bevel gear (1) to the differential housing.. . . From the differential housing through spider(17) to NOSPIN differential (3).From NoSpin differential (3) to the drive axles.. . .When the speeds of the wheels are the same, theNoSpin differential sends the same amount of torqueto each wheel. When the speeds of the wheels aredifferent, the NoSpin differential sends the torque tothe wheel that turns slower. A difference in thespeeds of the wheels is caused by a turn.The NoSpin differential lets a wheel (axle) turnfaster than the speed of the bevel gear by not engag-ing it with the bevel gear. For example: During a turnwith power, the outside wheel (axle) is not engagedwith the bevel gear and turns faster while the insidewheel axle is engaged with the bevel gear and turns atthe same speed as the bevel gear. The inside wheelgives the power which moves the machine throughthe turn.The NoSpin differential is the same on one side ofthe spider (17) as it is on the other side (symmetri-cal). The NoSpin has two springs (7) and (10), twoside gears (5) and (12), two driven clutches (6 and11), two holdout rings (8) and (9), a center cam (15),a snap ring (16) and a spider (17).The inside splines of side gears (5) and (12) areconnected to the drive axles. The outside splines ofthe side gears are connected to the inside splines ofdrive clutches (6) and (11). The side gears send thepower through the axles to the wheels.3-54
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