MOTO GUZZI V-7 700 Operating Handbook page 79

BALL BEARINGS AND TAPER ROLLER BEARINGS
All ball bearings and taper roller bearings used
in this machine are generously dimensioned for
longer life.
Inspection :
Examine very carefully outer raceway of inner
ri ng and inner raceway of outer ring. Raceways
must be perfectly smooth and glossy. Should
any crack or surface imperfection be detected.
complete bearing must be replaced. Balls and
rollers must be unimpaired and positively
smooth all over their surface. If any fault is
detected, replace bearing. Never try a partial
replacement because it Is extremely difficult to
get a good resurt from repaired bearings. When
fitting bearings, pressure must only be applied
to the ring which is going to be coupled to
housing or shaft.
Bear in mind that new bearings, before being
pressed into housing or onto shaft, show a
slight backlash (in the range of thousandths of
mm. only). Such backlash will diminish after bea-
ring is fitted, but nevertheless it must not disap-
pear completely, otherwise balls or rollers would
work under stress and bearing would then
rapidly deteriorate. In journal bearings or
thrust bearings it is allowed a sensible end
play (hundredths of mm.).
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