Figure 11-20.Typical tandem axle system.
The full-floating axle is used in most heavy trucks.
(See fig. 11-23.) These axle shafts may be removed and
replaced without removing the wheels or disturbing the
differential. Each wheel is carried on the end of the axle
tube on two ball bearings or roller bearings, and the axle
shafts are bolted to the wheel hub. The wheels are driven
through a flange on the ends of the axle shaft which is
bolted to the outside of the wheel hub. The bolted
connection between the axle and wheel does not make
Figure 11-22.Three-quarter floating rear axle.
Figure 11-21.Semifloating rear axle.
Figure 11-23.Ful1-floating rear axle.