FAQ No. FAQ01684
Question
What shape of motor shaft should be selected if a Reduction Gear is
installed on a SMARTSTEP A-series Servomotor?
Answer
Installation
Use a Servomotor with a straight shaft and without a key when installing
reduction gears.
Use only the specified combinations of Servomotors and reduction gears.
Using a combination that is not specified, or using in combination with
another company's reductions gears or Servomotor may result in a reduction
in the service life of the motor bearings.
The dimensions of the Servomotor mounting flange on the reduction gears
differ for each Servomotor. Do not install reduction gears on a Servomotor
other than the one specified.
Install reduction gears on the Servomotor using
the following procedure

1. Remove the rubber cap and check that the set bolt is loose.
2. Insert the Servomotor shaft into the input shaft.
3. Tighten the Servomotor installation bolt according to the tightening
torque specified in the following table.
|
Servomotor installation bolt |
Tightening torque (Nm) |
| M4 |
2.9 |
| M5 |
5.8 |
| M6 |
9.8 |
| M8 |
19.6 |
| M10 |
39.2 |
4. Tighten the set bolt according to the tightening torque specified in
the following table.
|
Set bolt |
Tightening torque (Nm) |
| M3 |
1.0 |
| M4 |
2.9 |
5. After tightening the set bolt, replace the rubber cap.
Using Reduction Gears from Other Companies
(Reference Information)
If the system configuration requires that a SMARTSTEP A-series Motor be
used in combination with a reduction gear from another company, select the
reduction gear so that the loads on the motor shaft (i.e., both the radial
and thrust loads) are with the allowable values. Also, control the motor
speed and output torque so that the allowable input speed and allowable
input torque of the reduction gear is not exceeded.
Other Servomotor / Servo Driver
FAQs
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