
B-65342EN/01 2.SPINDLE DESIGNING AND MOTOR MOUNTING
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2.1.2 Protection Class (foreign matter and liquid protection)
Protection class of B
iS series is IP00 when the delivery.
Protection class of motor part in the spindle must be IP54 or more, and
the part of drain must be IP44 or more. (Refer to the IEC34-5 standard
for details of IP.)
The oil circulating in the spindle for lubrication, such as oil-air
lubricating oil, must be insulating oil.
Oil or mist of oil must been kept isolated from motor parts and sensor.
Recommended insulating oil
For cooling : Idemitsu Super Multi 2(ISO VG2)
For lubrication : Mulpose , NIPPON OIL CORPORATION
Cable ground
Recommended model : SKINTOP series of LAPP
Example of IP44 drain :
6-10mm of drain hole diameter, with net of 1mm or less meshes
IP44 is acceptable for drains
CAUTION
FANUC cannot guarantee the motor, when the
protection is not enough.
The stator in drawing is mold type. The stator without mold is same as
induction built-in spindle motor, please refer to the FANUC AC
SPINDLE MOTOR αiB series DESCRIPTIONS (B-65292EN).