10.
CONSTRUCTION
OF
WHEEL
A.
Front
wh
ee
l
cast
'lng
of
whole
width
hub
containing
ball
bearings
Front wheel
body
made
of
aluminium
and brake drum inside
is
fitted
with
brake panel and speed meter unit
by
wheel axis and
nuts. To assemble the
front
wheel
to
the chassis, fit on the
lower
end
of
front
fork
fi
React
ion
occured during braking can be
caught
by
the
slide pipe
by
the
axle
Itting.
left
side bearing through the stopper
of
the brake panel.
F
ig.
10- 1. Cross section of front
hub
128
B.
Rear
wheel
The rear wheel
of
Model
C72,
77
is
consisted
of
wheel bearing, rear wheel hub
of
almin
ium
equipped
with
the brake drum, the final drive nange serving chain case
partially
and brake panel.
On
the left side, the brake panel
is
equipped through the distance
collar,
and between the wheel hub and the final drive nange there
is
fitted rear wheel
damper.
On
the right side
of
the wheel hub
containing
ball
bearing, the chain case
is
equipped
through the final
drive
nange fitted with the rear wheel damper and the final driven
sprocket, and
is
tighten
on
the rear axle passing through the l
eft
side
of
the rear
fork
through the distance
collar
on the left side.
The rear wheel damper
absorb
not
only
abrupt
variation
of
rotation
during braking and
driving
force
of
the rear wheel hub, but also
is
useful
to
protect
transmission mechanism.
Th
e rear wheel
of
Model
CB72,
77
is
consisted
of
ball bearing 163041, the rear wheel
hub
of
alminium casting equipped with the brake drum and the brake panel.
On
the left side there equipped the rear brake panel
of
twin
cam
typ
e through the panel
side
collar
and on the right side
of
th
e wheel hub, hub and the nnal driven sprocket
are fixed
by
the sprocket setting
bolt.
and nxed on the rear
fork
by
the rear axle through
the rear side
collar.
Fi
g.
10-2.
To draw aut
the
rear wheel
from
the
frame
(Model CB72,
771
129
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