
8.POINTS ABOUT DIRECT CONNECTION STRUCTUREFANUC AC SPINDLE MOTOR αiT SERIES B-65272EN/04
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8 POINTS ABOUT DIRECT CONNECTION
STRUCTURE
If the motor shaft and spindle are not centered precisely when the
spindle motor is directly connected to the spindle, fretting can occur
with the motor shaft in a short-time operation, or the bearing of the
motor can be damaged because of vibration occurring at the joint.
Six important points for high-speed rotation with low vibration in a
direct motor connection structure are described below.
<1> See Section 9.1, "HIGHER-PRECISION
MOUNTING FLANGE AND SHAFT".
<2> See Section 9.2, "CENTERING
USING CENTERING PLATES".
<5> See Section 9.5,
"ROTATION JOINT".
<4> See Section 9.4,
"COUPLING SELECTION".
<3> See Section 9.3, "CHECKING
MOTOR VIBRATION".
<6> See Section 9.6,
"COOLANT JOINT".