Harmonic Drive LynxDrive Series, Руководство пользователя

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35
1018856 08/2018 V04
6.12 Output Bearing
The servo actuators incorporate a high stiffness cross roller bearing to support output loads. This specially developed bearing
can withstand high axial and radial forces as well as high tilting moments. The reduction gear is thus protected from external
loads, so guaranteeing a long life and consistent performance. The integration of an output bearing also serves to reduce
subsequent design and production costs, by removing the need for an additional output bearing in many applications.
Furthermore, installation and assembly of the servo actuators are greatly simplified.
1)
C=Cross roller bearing, F = Four point contact bearing
2) These values are valid for moving gears. They are not based on the equation
for lifetime of the output bearing but on the maximum allowable deflection
of the Harmonic Drive® Component set. The values indicated in the table must
not be exceeded even if the lifetime equation of the bearing permits higher values.
3) These values are valid for gears at a standstill and for a static load safety factor f
s
= 1.8 for size 14 ... 20
and f
s
= 1.5 for size 25 ... 58.
4) These data are valid for n = 15 rpm and L
10
= 15000 h
3) 4)
These data are only valid if the following conditions are fulfilled:
for M
0
: F
a
= 0 N; F
r
= 0 N
F
a
: M = 0 Nm; F
r
= 0 N
F
r
: M = 0 Nm; F
a
= 0 N
5)
Average value
6.12.1 Technical Data
6.12.2 Tolerances
Table 35.1
Table 35.3
Symbol
[Unit]
LynxDrive-
14C
LynxDrive-
17C
LynxDrive-
20C
LynxDrive-
25C
LynxDrive-
32C
LynxDrive-
40C
LynxDrive-
50C
Bearing type
1)
C C C C C C C
Pitch circle diameter d
p
[m] 0.035 0.043 0.050 0.062 0.080 0.096 0.119
Offset R [mm] 9.5 9.5 9.5 11.5 13.0 14.5 18.0
Dynamic load rating C [N] 4740 5290 5780 9600 15000 21300 34800
Stating load rating C
0
[N] 6070 7550 9000 15100 25000 36500 60200
Dynamic tilting moment
2)
M
dyn (max)
[Nm] 41 64 91 156 313 450 759
Static tilting moment
3)
M
0 (max)
[Nm] 53 80 113 234 500 876 1791
Tilting moment stiffness 5) K
B
[Nm/arcmin] 13 23 37 70 157 265 497
Dynamic axial load
4)
F
A dyn (max)
[N] 2878 3207 3511 5827 7926 11242 18393
Dynamic radial load
4)
F
R dyn (max)
[N] 1928 2148 2354 3904 6101 8652 14155
Unit
LynxDrive-
14C
LynxDrive-
17C
LynxDrive-
20C
LynxDrive-
25C
LynxDrive-
32C
LynxDrive-
40C
LynxDrive-
50C
a [mm] 0.010 0.010 0.010 0.015 0.015 0.015 0.018
b [mm] 0.010 0.012 0.012 0.013 0.013 0.015 0.015
c [mm] 0.024 0.026 0.038 0.045 0.056 0.060 0.069
d [mm] 0.010 0.010 0.010 0.010 0.010 0.015 0.015
Illustration 35.2