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General environmental conditions
Protection from oil and water
When the gear box is mounted horizontally, the oil level in the gear box should always be lower
than the oil seal lip on the servo motor shaft. If it is higher than the oil seal lip, oil will enter the
servo motor, leading to a fault. Make sure there is a ventilation hole in the gear box to prevent
any pressure build up in the gear box.
The following table presents an overview of the minimum clearances between the oil level and
the servo motor shaft centre:
Tab. 2-5: Minimum clearances between the oil level and the servo motor shaft centre
Fig. 2-8: Arrangement
b
CAUTION:
The servo motors in the HC-MFS- and KC-KFS-Series do not have any oil seal on the
shaft. Here the sealing must occur on the gear side.
MELSERVO J2-Super
Servo motor
52 to 152
524 to 1524
HC-SFS
202 to 702
2024 to 7024
HC-RFS
103 to 503
Height above oil level
Gear
h
Lip
V ring
Height above oil level [mm]
20
25
20
Servo motor
Installation
S000525C
2 - 7
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