Chapter 5
Installation
25
Step 2
• Using the hexagon socket head cap screw and serrated lock washer for hexagon socket head cap
screw, or high-torque seal washer, fix the shaft installation component to the reduction gear.
• Be sure to tighten the hexagon socket head cap screws with the specified tightening torque.
(Reference: “4.2.2. Reduction gear mounting bolts”, “4.2.3. Serrated lock washer for hexagon socket
head cap screw”, and “5.1. Bolt tightening torque”)
If the hexagon socket head cap screws are not tightened with the specified torque, the reduction
gear does not deliver the designed performance. In addition, it could cause injury and damage to the
customer’s device and the reduction gear.
5.2.2. Installing the input gear
For straight shafts (attached to motor shaft tip)
The following is an example when fixing the input gear to the motor shaft using a bolt.
Perform steps 1 to 3 by taking care regarding the following precautions.
• Avoid impact to the motor shaft when attaching the input gear.
• The outer diameters of the bolt head and seal washer should be smaller than the root circle diameter
of the input gear.
Avoid impact to the motor shaft when attaching the input gear, as it could damage the motor.
If the outer diameters of the bolt head and seal washer are larger than the root circle diameter of the
input gear, the bolt and seal washer will interfere with the spur gear, and therefore, the gear cannot
be installed or could be damaged.
Fig. 5-11
Reduction gear
Hexagon socket
head cap screw
Shaft installation component
Serrated lock washer or
high-torque seal washer
Note
