Chapter 5 Installation
27
(2) For the pulley input type
Install the pulley using the keyway on the input shaft of the reduction gear and the tap hole on the tip.
Design the pulley so that the moment load applied to the tip of the input shaft is less than the
allowable moment. If a moment load that is more than the allowable moment is applied to the input
shaft of the reduction gear, it could cause damage to the reduction gear or customer’s equipment.
Note: See our catalog for the calculation methods of the moment load.
(Pulley installation example)
Allowable moment load
Table 5-4
(3) For the hollow shaft series
When using the hollow shaft series described in “2.1 Name of each section” with the shaft facing up and
with a vertical shaft installed (Fig. 5-12), contact our service representative individually. Note: The solid
series can be installed as shown in Fig. 5-12.
Model code
Ratio code
Rated moment
(Nm)
Allowable
moment (Nm)
RDP-020E
081
38
38
RDP-040E
057
78
122
RDP-080E
081
133
RDP-160E
066
158
295
RDP-320E
081
417
RDP-010C
108
38
38
RDP-027C
100
40
RDP-050C
109
78
90
RDP-100C
101
134
RDP-200C
106
158
230
RDP-320C
157
215
Note
Fig. 5-12
Output shaft (shaft)
Hollow section
Case
Input unit
Motor flange
Output shaft (shaft)
Output shaft (shaft)
Hollow section
Hollow section
Case
Case
Input unit
Motor flange
Input unit
Fig. 5-11
Less than
allowable moment
Tip of the
input shaft
