FLYWHEEL AS 3638567 - Caterpillar

Carrier Assembly
Carrier Assembly
(1) Ring gear. (2) Differential case halves. (3) No-spin differential. (4) Drive pinion.Power is transferred from the output collar (in the two speed transmission) to drive pinion (4). The drive pinion teeth mesh with the ring gear teeth. This turns ring gear (1) as the drive pinion turns.The ring gear turns differential case halves (2). The case halves turn no-spin differential (3). This causes the axle shafts to turn.No-Spin Differential
No-Spin Differential (Assembled)
(1) Side gear. (2) Driven clutch. (3) Spring. (4) Holdout ring. (5) Holdout ring. (6) Spring. (7) Driven clutch. (8) Side gear. (9) Spring retainer. (10) Spring retainer. (11) Center cam. (12) Snap ring. (13) Spider.The no-spin differential allows the axle to send different torques to each rear wheel. When the speeds of the wheels are the same, the no-spin differential can send the same amount of torque to each wheel. When the speeds of the wheels are different (when the machine is turning) the no-spin differential sends the torque to the wheel that turns slower. If one wheel loses traction on ice or mud, both wheels turn at the same speed, but the spinning wheel will have less torque.
No-Spin Differential (Left Side Disassembled)
(1) Side gear. (2) Driven clutch. (3) Spring. (4) Holdout ring. (9) Spring retainer. (11) Center cam. (12) Snap ring. (13) Spider.The differential is the same on one side of the spider as it is on the other side. The differential has two springs (3) and (6), two side gears (1) and (8), two driven clutches (2) and (7), two holdout rings (4) and (5), one center cam (11), one snap ring (12), and one spider (13).
Spider and Center Cam
(11) Center cam. (13) Spider. (14) Notch in center cam. (15) Spider key.Spider (13) is fastened to the carrier case and turns at the speed of the ring gear. The spider has clutch teeth on both sides. Spider (13) also has one long tooth called the spider key (15). Center cam (11) fits inside the spider and is held in position by snap ring (12). Cam is turned by the spider key which fits inside notch (14).
Clutch and Holdout Ring
(2) Driven clutch. (4) Holdout ring. (16) Notch in holdout ring. (17) Cam.Driven clutches (2) and (7) are identical. Each clutch has a cam (17) which is part of the clutch. The teeth on the cam engage with the teeth of center cam (11). The teeth of the driven clutch engage with the clutch teeth on spider (13).The holdout ring (4) sits in the driven clutch, in the groove between the teeth of the driven clutch and the teeth of the cam. The teeth of the holdout ring engage with the notches in the center cam. Notch (16) in the holdout ring engages with spider key (15). The spider key controls the movement of the holdout ring in relation to the spider. There is no connection between the holdout ring and the driven clutch except friction.Springs (3) and (6) fit between the side gears