
348 LIGHT AND HEAVY VEHICLE TECHNOLOGY
rotates within a pair of bearings mounted in a hub
carrier, early created a demand for bearing arrange-
ments that occupied less width than those previously
described. This led to the application of very compact
double-row angular-contact ball bearing units in which
a split inner ring is used to obviate the need for filling
slots for the balls. Hence the optimum number of fairly
large-diameter balls may be used to increase radial and
axial load-carrying capacities, so that a much reduced
axial space is required and the wheel spindle can be
made short and rigid. Tapered roller bearings may be
similarly adapte ...