
B-65332EN/01 HANDLING, DESIGN, AND ASSEMBLY 2.MECHANICAL DESIGN
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2.10 ROTOR AND STATOR FIXING
2.10.1 Rotor
here are two methods to mount (fix) a rotor.
T
Fixing with screws
Fix a rotor using all taps on both side of the rotor. Strength category of
screw should be 12.9 or more, and screws should be tightened up with
aximum torque of its specification.
m
Heat shrink fitting
Shrink fit the inner diameter of a rotor to a shaft. Tolerance between
the inner diameter of rotor and the outer diameter of shaft should be
determined according to the actual inner diameter of rotor. The rotor
should not be heated over 100 degrees Celsius. Otherwise, magnets on
the rotor will be de-magnetized. It will be able to decrease the failure
possibility, if the shaft is cooled.
But the tolerance for heat shrink became 0.1 or more, the rotor is
possibly deformed. Therefore, in such a case, heat shrink fitting is not
ecommended.
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2.10.2 Stator
Fix a stator using all taps on both side of the jacket. Strength category
of screw should be 10.9 or more, and screws should be tightened up
ith maximum torque of its specification.
w