Installed rear axle assembly
On the right is the R detailing (fastening the rear axle telescopic shock absorber to the body), left - detailing S (fastening the rear axle telescopic shock absorber to the axle carrier)
1 – rear coil spring; 2 – spring lining; 3 – shock absorber mounting bolt; 4 – nut; 5 – telescopic shock absorber; 6 – bolt; 7 – surface for mounting the shock absorber in the body
Detailing T (rear axle mounting to body)
Section of the rear wheel hub, which simultaneously forms the outer ring of a double-row ball bearing
The rear axle assembly in Skoda Octavia cars is an independent assembly unit. The rear axle assembly also includes the wheel hubs, rear wheel brakes, springs and telescopic vibration dampers. Since the brake device is thematically related to brakes, springs and shock absorbers to the suspension group, the description of these rear axle subassemblies is related to the mentioned topic (see subsection 11.3, subsection 9.4.2, subsection 9.4.3).
The rear axle is a crank formed by consoles connected to a transverse torsion element.
(Data taken from this portal www.SKODABOOK.ru)
On the front side (in the direction of movement) the consoles are inserted into rubber bushings of the holders, with which the bridge is attached to the car body on each side with four bolts. At the opposite ends of the consoles, the rear wheel axles are screwed to the flanges. Powerful holders of coil springs and holders of telescopic shock absorbers are welded to the consoles. The shock absorbers are located behind the springs.
The rear axle is equipped with either drum or disc brakes.
The torsional element is a steel V-profile (channel) 6 mm thick. Side consoles welded from sheet stampings are welded to the profile. On the outer sides of their ends, plates with four holes for screwing the wheel axles together are laser welded (bolts M 10). These axles are designed in a rather original way. They are formed by flanges with threads for mounting bolts, on which the axles are located. The brake device holders are also installed on the axle. Conical double-row bearings are mounted on the axles with their inner ring, their outer rings are the wheel bushings (see fig. Section of the rear wheel hub, which simultaneously forms the outer ring of a double-row ball bearing). The bushing is secured with a nut and a stamped washer (there is a plastic ring at the end of the thread). The nut has an external twelve-sided socket for a special key. The wheel hub has five threaded holes for fastening the car wheel and one M6 thread for a countersunk head bolt for fastening the brake drum or disc.
The spring holder is a sheet metal stamping welded to the inside of the rocking console.
In the lower part of the holder there is a hole, the upper outlet of which is simultaneously the centering for the galvanized sheet lining, against which the coil spring rests.
On the rear wall of the spring holder there is another holder, into which the lower eye of the telescopic shock absorber with an elastic hinge is inserted. The shock absorber is screwed with a bolt oriented horizontally.
The end turns of the coil spring are compressed at the top and bottom into a cone. A rubber profile lining is put on the spring at the top, by means of which the spring rests against the body pit.
The upper attachment of the telescopic shock absorber is carried out by two bolts in the body bracket. The shock absorber ends with a ball surface, allowing the shock absorber to be deflected during suspension.