Yaskawa Sigma Mini - Manual (Page 20)

1.2Installation
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Alignment
Align the shaft of the Servomotor with that of the equipment to be controlled, then connect
the shafts with couplings. Install the Servomotor so that alignment accuracy falls within
the range shown in the following diagram.
Measure this distance at four different positions in the circumference. The
difference between the maximum and minimum measurements must be
0.03 mm or less. (Turn together with couplings)
Measure this distance at four different positions in the
circumference. The difference between the maximum and minimum
measurements must be 0.03 mm or less. (Turn together with
couplings)
Note If the shafts are not aligned properly, vibration will occur, resulting in damage to the bearings.
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