
2.HOW TO USE SERVO MOTORS SPECIFICATIONS FOR THE αiS/αi SERIES B-65262EN/03
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• When tapping slightly to remove the tightly contacted tapered
surface, tap in the radial direction to prevent a shock in the axial
direction.
• Suppress the rotary unbalance of the connected power
transmission element to the level as low as possible. It is usually
believed that there is no problem in the symmetrical form. Be
careful when rotating continuously the asymmetrical different
form power transmission element. Even if the vibration caused
by the unbalance is as small as 0.5G, it may damage the motor
bearing or the sensor.
• An exclusive large oil seal is used in the front flange of the
models α8is to α50is.
The oil seal surface is made of steel plate. Take care not to apply
a force to the oil seal when installing the motor or connecting the
power transmission elements.