Table of Contents
Planetary Gearboxes
6.3
Permittable shaft loading
Basis of design:
DOK-GEAR**-GTM********-PR01-EN-P
F A
F
:
permittable axial force
A
F
:
permittable radial force
R
X:
Distance between shaft shoulder on the output shaft and point of
application of the radial force
n
:
average output speed of the cycle
2m
Fig. 6-4:
permittable shaft load of the GTM
+
n
*
t
n
=
2
a
2
b
a
n
2
m
+
t
t
a
The GTM gearboxes are designed for an L
Radial forces F
which lie over the value of the diagram, decrease the
Rerf
nominal bearing-lifetime as follows:
F
=
∗
L
30000
10
h
F
Re
F R
x
L
+
+
*
t
...
n
*
t
b
2
n
n
+
+
...
t
b
n
bearing life of 30,000 hours.
10h
10
3
R
rf
6-5
Technical Data
GG000009v01_en.EPS
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