
350 LIGHT AND HEAVY VEHICLE TECHNOLOGY
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Figure
21.21
Wheel mounting shaft and bearing assembly of
an
off-the-car balancer
(Churchill)
1 cubicle
6
shaft drive pulley
2
compression springs (mounting)
7
transducers
3 leaf springs (mounting)
8
bed casting
4 plastic cylinder 9 ball bearings
5 position of shaft indicator
10
mounting shaft for wheel
In contrast, the on-the-car balancer checks static and
dynamic out-of-balance with the wheel on the vehicle.
Hence, the hub and brake drum or disc, as well as the
wheel and tyre assembly, are compensated for imbal-
ance.
Naturally ...