Table of Contents
Advertisement
5.7.2 Grease Reservoir
For assembly please ensure that the grease reservoir is filled up with grease (dimension c and ø d in table 44.1 and
illustration 44.2).
Table 44.1
Size
ø a
b
c*
c**
ø d
e
ø f
* Horizontal and Vertical - Wave Generator below
** Vertical - Wave Generator above
Illustration 44.2
5.7.3 Grease Change
To change the grease the component set should be completely disassembled and cleaned before regreasing. Fresh grease
should be applied generously to the inside of the Flexspline, the Wave Generator bearing, the Oldham coupling and the teeth
of the Circular Spline and Flexspline.
In illustration 44.3, the grease change interval depending on the grease temperature is given. The number of allowable revolu-
tions of the input shaft which represents the grease change interval can be estimated as shown in the example. This means,
that for a temperature of SK-1A or SK-2 grease of 40° C a change should take place after approx. 8.5 x 10
input shaft. All grease change data refers to rated speed and rated torque.
Illustration 44.3
1E+10
1E+10
1E+09
1E+09
SK1A, SK2
1E+08
1E+08
20
40
20
40
Grease Temperature [°C]
44
14
17
38
45
14.6
16.4
1
1
3
3
31
38
1.7
2.1
16
26
Maximum centering length
Countersink for
mounting bolt heads
Flexolub A1
4B No. 2
60
80
100
120
140
60
80
100
120
140
20
25
32
53
66
86
17.8
19.8
23.2
1.5
1.5
1.5
4.5
4.5
4.5
45
56
73
2
2
2
30
37
37
Equation 44.4
L
GT
L
= Number of Wave Generator revolutions until grease change
GT
L
= see diagram
GTn
T
= Rated torque
r
T
= Average torque
av
40
45
50
106
119
133
28.6
31.9
34.2
2
2
2
6
6
6
90
101
113
2
2.3
2.5
45
45
45
revolutions of the
8
( )
T
3
.
r
= L
GTn
T
av
1019658
58
154
40.1
2.5
7.5
131
2.9
56
11/2014
Advertisement
Table of Contents
