Precautions For Using Servo Motors With Oil Seal; Precautions For Using Couplings - Delta ASD-A2-0121 Series User Manual

Chapter 2 Installation

2.9.3 Precautions for Using Servo Motors with Oil Seal

This section defines the operating conditions for using motors with oil seal:
1. In the operating environment, the oil level must be lower than the oil seal lip.
(1) Servo motor; (2) Motor shaft; (3) Gear; (4) Oil; (5) Oil seal lip; (6) Oil seal
2. The oil seal cannot be submerged in the liquid; it can only withstand splashes of oil.
3. The oil seal lip cannot be soaked in oil.
4. The oil seal cannot be lower than the oil level; otherwise the oil will enter the servo motor and
cause damage.

2.9.4 Precautions for Using Couplings

Caution:
It is suggested to use a flexible coupling specifically designed for servo motors, especially double
spring couplings, which provide some buffer tolerance during eccentric motion and deflection.
Please select appropriate coupling size for the operating conditions. Improper usage or connection
may result in damage.
1. Wipe off the anti-rust coating or oil on the motor shaft end.
2. If using a servo motor with a keyway, attach the supplied key or a key that matches the
dimensions of the drawing to the motor shaft.
Note: when installing the keyway on the motor, do not apply excessive force to the
keyway or motor shaft.
3. Use dial gauge or other methods to ensure that the centering accuracy is within the
specification.
If you cannot use the dial gauge or other methods, you can slide the coupling along both axes and
adjust it until it does not get stuck.
(1) The distance is measured at four
different positions on the
circumference for the centering
accuracy. The difference between
the maximum and minimum
measurement values must be
0.03 mm or less; and even within
this range, you can make
adjustments to increase the
centering accuracy as much as
possible.
Note: when measuring, rotate the coupling
and the motor shaft together.
ASDA-A2
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