Rear axle
1 – half shaft; 2 – wheel mounting bolt; 3 – guide pin; 4 – oil deflector; 5 – brake drum; 6 – axle shaft bearing; 7 – locking ring; 8 – rear axle beam flange; 9 – axle shaft seal; 10 – rear axle beam; 11 – bearing mounting plate; 12 – rear brake shield; 13 – axle shaft guide; 14 – adjusting nut; 15 – differential box bearing; 16 – bearing cover; 17 – breather; 18 – satellite; 19 – driven gear; 20 – axle shaft gear; 21 – drive gear adjusting ring; 22 – spacer sleeve; 23 – pinion bearings; 24 – oil seal; 25 – mud deflector; 26 – flange; 27 – oil deflector; 28 – crankcase, rear axle gearbox; 29 – drive gear; 30 – satellite axis; 31 – adjusting washer; 32 – differential box
To beam 10 (see fig. Rear axle) the rear axle is secured with a gearbox 28, in which the main gear and differential are located. The leading 29 and driven 19 gears of the main gear are paired in terms of contact and noise, so if one of them is damaged, both are replaced. Between the inner rings of the bearings 23 of the leading gear there is a spacer sleeve 22, which, deforming when the nut of the leading gear is tightened, provides a preliminary tension in its bearings.
An adjusting ring 21 is installed between the end of the drive gear and the inner bearing, determining the correct position of the drive gear relative to the driven gear.
The driven gear of the main transmission is attached to the flange of the differential box 32, which rotates on two bearings 15. The preload in these bearings, as well as the gap between the teeth of the driving and driven gears, is adjusted by nuts 14, screwed into the detachable bearing beds. The half-axle gears 20 are installed in the cylindrical seats of the differential box and rest on the box through support washers 31. By selecting the washers by thickness, a lateral gap of 0–0.1 mm is set between the teeth of the satellites and half-axle gears.
The axle shaft 1 enters the splined hole of the axle gear with its inner end, and rests on the ball bearing 6 with its outer end, which is secured to the axle shaft by a locking ring 7. The axle shaft bearing is sealed in the beam socket on the inside by a self-tightening seal 9, and on the outside by a rubber ring clamped between the brake shield 12 and the flange of the rear axle beam. The bearing is secured in the beam socket by a plate 11, which, together with the oil deflector 4 and the shield, is bolted to the flange of the beam.