20
1019658 11/2014
Output Data
T
1
= 400 Nm
t
1
= 0.3 s
n
1
=
7 rpm
T
2
= 320 Nm
t
2
= 3.0 s
n
2
= 14 rpm
T
3
= 200 Nm
t
3
= 0.4 s
n
3
=
7 rpm
T
k
= 500 Nm
t
k
= 0.15 s
n
k
= 14 rpm
t
p
= 0.2 s
n
p
=
0 rpm
Ratio i = 120
Life L
50
= 30000 h (required)
Load limit 1,
calculation of the average output torque T
av
T
av
= 319 Nm ≤ T
A
= 451 Nm
Selected size
HFUC-40-120-2A-GR
Calculation of the average
output speed
Average input speed
n
in av
= 120 · 12.0 rpm = 1440 rpm
n
out av
=7 rpm · 0.3 s + 14 rpm · 3 s + 7 rpm · 0.4 s =12.0 rpm
0.3 s + 3 s + 0.4 s + 0.2 s
Permissible maximum input speed
n
in max
= 14 rpm · 120 = 1680 rpm ≤ 4000 rpm
Permissible average input speed
n
in av
= 1440 rpm ≤ 3000 rpm
Load limit 2,
T
R
Load limit 3,
T
M
Allowable number of
momentary peak torques
T
max
= 400 Nm ≤ T
R
= 617 Nm
T
k
= 500 Nm ≤ T
M
= 1180 Nm
10
4
14 · 120
2 · 60 · 0.15
Operating life
HFUC-40-120-2A-GR:
L
50
= 35000 h · 2000 rpm ·
(
294 Nm
)
3
1440 rpm 319 Nm
L
50
= 38054 h > 30000 h
3
7 rpm · (400 Nm)
3
· 0.3 s
+ 14 rpm · (320 Nm)
3
·
3 s + 7 rpm · (200 Nm)
3
· 0.4 s
7 rpm · 0.3 s + 14 rpm · 3 s + 7 rpm · 0.4 s
T
av
=
N
k max
=
= 1190 < 10
4
