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5.5 Lubrication
5.5.1
Grease lubrication SHG-2UH
Harmonic Drive® SHG-2UH Units are delivered ready for immediate installation. They are supplied with lifetime lubricant which
is a high performance grease that meets the specific requirements of the Harmonic Drive® Gears based on strain wave gear
principle. It guarantees constant accuracy of the gears for their whole life. A re-lubrication of the Units is not necessary.
5.5.2 Grease Lubrication SHG-2SO and SHG-2SH
These units are delivered without lifetime lubrication. Before commissioning of the unit an initial lubrication has to be applied
by the customer. A recommendation for the lubricant type can be found at chapter 4.10.1. If any other grease is used this will be
indicated on the customer drawing. On delivery of SHG-2SO and -2SH Units as standard, Flexspline and Circular Spline teeth are
lubricated ready for use. Before mounting, the Wave Generator Bearing and the inner part of the Flexspline must be greased.
It may be necessary to place an additional amount of grease on the front face of the Wave Generator (see illustration 53.1).
Illustration 52.1 shows the areas requiring grease.
Illustration 52.1
The areas
Wave Generator Bearing
Inner part of Flexspline
must be lubricated when
the unit is mounted into the
machine.
On delivery, standard Units are
greased ready for
use in the areas
Gear teeth
Output bearing
Table 52.2
Dimension (Illustration 52.3)
Standard amount of grease
Additionally required grease quantity for operation
with Wave Generator above
The following operating positions "Wave Generator above" or "Wave Generator below" refer to the position of the Wave
Generator in relative to the output bearing of the Unit, see illustration 52.3.
Illustration 52.3
Vertical, Wave Generator above
Wave Generator
Output Bearing
52
Symbol
[Unit]
s [mm]
[g]
[cm
]
3
[g]
[cm
]
3
Operating positions
Wave Generator horizontal
Wave Generator
Output Bearing
SHG-
SHG-
SHG-
SHG-
14
17
20
25
3
4
5
6
5,8
11
18
32
6,4
12
20
35
3,1
4
4
10
3,4
4
4
11
Vertical, Wave Generator below
Output Bearing
Wave Generator
SHG-
SHG-
SHG-
SHG-
32
40
45
50
8
10
11
12
64
120
185
235
70
132
203
258
20
30
45
55
22
33
49
60
1021387
SHG-
SHG-
58
65
14
16
385
495
423
544
95
135
104
148
12/2018
V02
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