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2.2
Load mounting/dismounting precautions
• When mounting a pulley to the rotary servo motor with a keyed shaft, use the screw hole in the shaft end. To fit the pulley,
first insert a double-end bolt into the screw hole of the shaft, put a washer against the end face of the coupling, and insert
and tighten a nut to force the pulley in.
Rotary servo motor
Pulley
• For shafts without a keyway, use a friction coupling or the like for coupling the rotary servo motor with a load.
• When removing the pulley, use a pulley remover to protect the shaft from excessive load and impact.
• To ensure safety, fit a protective cover or the like on the rotary area, such as the pulley, mounted to the shaft.
• When a threaded shaft end part is needed to mount a pulley on the shaft, please contact your local sales office.
• The direction of the encoder on the rotary servo motor cannot be changed.
• When mounting the rotary servo motor, use spring washers or similar parts and fully tighten the bolts so that they do not
become loose due to vibration.
• The part A of the shaft has a grinding clearance shaped as shown in the detailed figure of the part A, and the part B of the
shaft has the center hole shaped as shown in the detailed figure of the part B. As these dimensions vary widely depending
on the products and cannot be guaranteed, do not use the dimensions for positioning pulleys or washers. In addition,
approximately C0.4 of the shaft edge is trimmed off (the dimensions may vary depending on the products).
A
Precautions
• To prevent a malfunction on the encoder, the shaft end must not be hammered during assembling.
• Do not process the shaft to avoid damage to the encoder and bearing.
Double-end stud
Nut
Washer
B
Detailed figure of part A
Clearance shape
Detailed figure of part B
Center hole shape
2 INSTALLATION
2.2 Load mounting/dismounting precautions
2
21
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