Chapter 6
Filling the Lubricant
38
Shaft installation
component
Target range
Tapped hole for
injecting/draining
grease
Tapped hole for
injecting/draining
grease
Motor
6.2. Reduction gear mounting direction and amount of lubricant
The amount of grease the reduction gear requires will differ according to the orientation in which the gear
is installed. The target range for filling the lubricant (the
areas in the diagram) inside the reduction
gear for each mounting direction is indicated below. Set the amount of lubricant according to the
customer’s installation environment based on this information.
6.2.1. Horizontal shaft installation
The target range (the
areas in the diagram) when the reduction gear is installed in the horizontal
shaft is indicated in Fig. 6-1. The amount does not include the space on the motor mounting side (the
areas in the diagram). Therefore, if there is a blank space, also fill the space. Leave a space about
10% of the total volume of the internal capacity of the reduction gear (the
areas in the diagram)
and the space on the motor mounting side (the
areas in the diagram). Be sure to fill the amount of
lubricant described in the separately provided “Outer dimensions” drawings. If there is no indication in the
“Outer dimensions” drawings, contact our service representative individually.
Fig. 6-1
Be sure to leave a space about 10% of the total volume. If overfilled, the temperature increases
during operation and the internal pressure also increases. As a result, oil seals could fall off or
lubricant could leak.
If the lubricant is not filled sufficiently, it could lead to premature damage of the reduction gear.
The shape of the reduction gear may differ from the illustration in Fig. 6-1 above, depending on the
ordered specifications. For details on the shape, refer to the separately provided “Outer dimensions”
drawings and specification sheet.
Note
