FILLER GP-ENGINE OIL 5417023 - Caterpillar

Final drives
The final drives provide the final gear reduction to the road wheels. The components that are shown in Illustration 1 are located at each side of the axle.
Illustration 1 g00908446
(1) Inner end of the Shaft Assembly (2) Outer end of the Shaft Assembly (3) Bearing (4) Gear (5) Carrier (6) Ring gear (7) Flange (8) Stud (9) Flange (10) Nut (11) KnuckleThe final drives have the following main components:
Gears
Carrier
Ring gear
FlangeGears (4) - The gears are splined to the end of shaft (2) and the gears are in constant mesh with ring gear (6) .Carrier (5) - The carrier contains gears (4) that rotate on pins in the carrier. The carrier is secured to the flange (9) by studs (8) .Ring Gear (6) - The ring gear is held stationary by the flange (7) which is splined to knuckle (11) .Flange (9) - The flange is supported on knuckle (11) by bearings (3). Flange (7) and flange (9) are retained on knuckle (11) by nut (10) .The shaft assembly rotates gears (4). Gears (4) will then attempt to rotate ring gear (6). Since ring gear (6) is held stationary, gears (4) rotate inside ring gear (6) in order to turn carrier (5) in the same direction as the shaft assembly. Because the distance that is travelled by the gears is relative to the size of the gears, a gear reduction is provided between the speed of the shaft assembly and the carrier which turns flange (9) .