Front axle hub assembly with steering knuckle
Pos. | spare part no | Name |
1 | - | Drive axle housing |
2 | - | Ventilation piping |
3 | - | half shaft |
4 | - | Wheel studs and hub |
5 | - | wheel axle |
6 | - | Wheel bearings |
7 | - | Inner and outer hub seals |
8 | - | Axle seal |
9 | - | Hub nut lock washer, thrust washer and nuts |
10 | - | Brake disk |
11 | - | drive flange |
12 | - | Adjusting washer and retaining ring |
13 | - | dust cover |
14 | - | CV joint / shaft |
15 | - | Thrust ring for constant velocity joint |
16 | - | Tapered roller bearing |
17 | - | remote element |
18 | - | Retaining ring |
19 | - | Tapered bearings for upper and lower kingpins |
20 | - | Upper and lower pivots |
21 | - | Spherical body, seal and retainer |
22 | - | Rounded fist |
23 | - | CV joint shaft seal |
The front differential is located on the left side of the chassis.
Operating principle
Welded steel crankcase of the front axle contains a differential (with bevel gears with helical curved teeth), which is set offset to the right of the vehicle centerline. The differential drives the front wheels with the help of axle shafts and constant velocity joints, which are completely enclosed in spherical housings and steering knuckles.
The front wheels turn on tapered roller bearings located at the top and bottom of the steering knuckle. The wheel hubs on all axles are supported by two tapered bearings and are driven by drive flanges, which are mounted on a one-section short shaft assembly with a constant velocity joint using a spline connection.
Lubrication
Differential, steering knuckles and wheel hubs are lubricated separately and separated by oil seals (7) And (8), see J6267A, to prevent oil from overflowing across the axle when the vehicle is climbing steep slopes. The wheel bearings are lubricated with grease, and the knuckle and differential with oil. On later vehicles, identifiable only by the presence of a filler plug in the steering knuckle, grease is used to lubricate the steering knuckle.
Ventilation
The differential is ventilated through a plastic tube (2), which ends at a high level in the bridge of the car. The steering knuckles are vented through the oil seals of the axle shafts (8) into the differential, and the hub bearings are vented through oil seals into the steering knuckle.
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