
B–65142E/04
2. PRECAUTIONS ON USEDESCRIPTIONS FOR THE α series
15
A precision detector is directly connected to the servo motor shaft.
Pay attention to the following items to prevent damage to the detector.
D When connecting the power transmission elements such as a gear, a
pulley and a coupling to the shaft, take care not to apply a shock to the
shaft.
D Generally, in the case of straight shaft, use a span ring for connection
with the shaft.
D In the case of tapered shaft, match the tapered surface with the power
transmission element and fix by tightening the screw at the end. When
the woodruff key is too tight, don’t tap it with a hammer. Use the
woodruff key mainly for positioning, and use the tapered surface for
torque transmission. Machine the tapered surface of the power
transmission element so that over 70% of the whole surface is
contacted.
D To remove the connected power transmission element, be sure to use
a jig such as a gear puller.
2.3
COUPLING