Chapter 5 Installation
28
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.
Step 1
Attach a key to the motor shaft.
Step 2
Attach the input gear to the motor shaft.
• Check that there is no foreign matter adhering to the mounting surface.
If foreign matter adheres to the mounting surface, appropriate installation accuracy cannot be
obtained. It could lead to premature damage of the reduction gear or motor.
Step 3
Fix the input gear to the motor shaft using a hexagonal socket head cap screw.
Using a thread-locking sealant for screws, lock the hexagonal socket head cap screw.
If necessary, seal the area with a seal washer, etc.
Fig. 5-9
Seal washer
Input gear
Key
Hexagon socket
head cap screw
Motor
Note
Note
Important
