The upper 13 and lower 36 suspension arms are connected to the pivot pin 10 by ball joints. The upper ball joint 14 is fastened to the upper suspension arm by three bolts. The bearing 12 is located in the joint housing, the base of which is resin, and the friction surface is Teflon fabric, tightly fitting the spherical surface of the pin 9. The joint parts are protected from contamination by a reinforced cover 11. The conical part of the pin is installed in the conical hole of the pivot pin and secured with a self-locking nut. During operation, the joint parts are not lubricated.
The lower ball joint 45 is connected to the pivot pin and the suspension arm similarly to the upper joint. In the housing 46 of the joint, there is a pin 49 with a hemispherical head. A metal-ceramic bearing 48 with a hemispherical surface is put on the rod of the pin. An insert 47 made of oil-resistant rubber is inserted with tension into the lower part of the housing. A plastic layer is applied to the surface of the insert in contact with the hemisphere of the pin (nylon molybdenum sulfide blend). At the bottom of the hinge housing there is a hole through which the hinge is lubricated. It is closed with a conical plug.
The upper arm 13 of the suspension is connected by the axle 22 to the body front pillar, and the lower arm 36 is suspended by means of the axle 35 with bolts 37 to the crossmember 30 of the suspension, which is fastened with brackets to the side members. Distance 28 and adjusting 27 washers are installed between the axle of the lower arm and the crossmember.
By changing the number of washers 27, the longitudinal angle of the steering axis and the camber angle of the front wheels are adjusted. Both suspension arms are connected to the axles via rubber-metal hinges, which ensure a gap-free connection of these parts. Such a hinge includes a rubber bushing 25, an outer 24 and an inner 23 metal bushing. A washer 26 is installed between the hinge and the nut.
Spring 38 rests with its upper end through support cup 21 with rubber gasket 20 on the body front pillar. The lower end of the spring rests in support cup 44 of the lower arm. According to length under a load of 435 kgf, the front suspension springs are sorted into groups A and B. Group A springs are marked with yellow paint, and group B springs with green paint. The upward travel of the front wheel is limited by the stop of the upper arm 13 in the rubber buffer 15 installed in the bracket 16.
The article is taken from the website VAZbook.ru
The lateral roll of the body when turning the car is reduced by the anti-roll bar, made in the form of a rod 33 made of spring steel. The ends of the rod are attached to the brackets of the lower suspension arms with clips 39 through rubber cushions 32. The rod itself is attached to the side members 34 with two brackets 31, in the holes of which rubber bushings are located. Shock absorbers 40 are attached to the lower suspension arms. The shock absorber rod passes through the hole of the support cup 17 and is secured with a nut. Rubber cushions 18 are installed between the shock absorber casing and the cup, as well as between the support washer and the cup. The shock absorber is attached to the lower arm by means of a bracket 43 and bolts 41, 42.
Wheel hub 6 is mounted on journal 5 of the steering knuckle on two tapered roller bearings 1, which are pressed by adjusting nut 3. Between the nut and the outer bearing, a thrust washer 4 is installed with a whisker entering the groove of the journal, due to which it is held from turning when tightening the nut. On the inside, a self-tightening oil seal 7 is installed in the hub socket. From the outside, the hub cavity is closed by a cap 2, which is pressed into the hub. Brake disk 8 and pressure ring are fastened to the hub flange with two guide pins, and the wheel disk is fastened with bolts.
The dimensions of the main mating parts and the limits of permissible wear during operation are given in Table 14.
