SEAL G- 9S4298 - Caterpillar

Illustration 1 g06156539
(1) Axle Shaft
(2) Ring Gear
(3) Disk Brake
(4) Planetary Gear
(5) Bevel Pinion
(6) Sun Gear
(7) Bevel Gear
(8) Spider Gear
(9) Differential Gear
(10) Final Drive CarrierThe front axle group and the rear axle group incorporate the pinion and bevel gear set, the differential, the final drives, and the disc brakes. The front axle housing and the rear axle housing are slightly different, but the internal components and the operation are identical. A limited slip differential is available in both the front axle group and the rear axle group. A NoSPIN differential is available in the rear axle group.Power from the transmission output shaft is transferred to the front axle group and to the rear axle group by the drive shafts. The power enters the axle groups through bevel pinion (5). Bevel pinion (5) turns bevel gear (7). Bevel gear (7) is fastened to the differential case . Power is transferred through the differential by spider gears (9) and by differential gear (10) to the final drives.The axle groups contain the service brakes. Brake disc (3) is splined to sun gear (6). Brake disc (3) rotates at the same speed as the sun gear. When the brakes are applied, the cavity behind brake piston is pressurized. When the brakes are applied, the brake piston clamps brake disc (3) between the piston and the brake reaction plate.Reference: For additional information about the braking system, refer to the Systems Operation , "950 GC Wheel Loader Braking and Hydraulic Fan System" M0073073.Final Drive
Illustration 2 g06156627
(2) Ring Gear
(4) Planetary Gear
(6) Sun Gear
(10) Final Drive CarrierThe following components are the main components of the final drives: carrier (10), planetary gears (4), ring gear , (2), and sun gear (6). Each final drive has the same components. The final drives cause the last speed reduction and the last torque increase in the drive train.Sun gear (6) is splined into spider gears (9) of the differential. Ring gear (2) is pressed into the axle housing. Three planetary gears (4) are mounted in carrier (10). Carrier (10) has internal splines. The splines of axle shaft (1) fit into the splines of carrier (10).As sun gear (6) is driven by the differential, planetary gears are forced to revolve around the inside ring gear (3). The movement of planetary gears (4) around ring gear (2) causes carrier (10) and axle shaft (1) to rotate. This transfers power to the rim and the tire. The rim and the tire bolt to the flange on axle shaft (1).