PME120/RHD250 to 4000 (Contrac)
ELECTRICAL ROTARY ACTUATOR | OI/PME/RHD250/4000-EN REV. F
15
Installation with additional output elements
When mounting an additional drive element instead of the
standard lever, the following installation conditions must be
observed:
Maximum permissible shaft loads
Type
radial force at
distance x
N (lbf)
Distance x
from shaft
edge
mm (in)
axial force
N (lbf)
Max. output
torque
PME
943 (212)
30 (1.18)
164 (36.87)
Occasionally,
2-times
nominal torque
for short time
RHD250
1767 (397.24)
40 (1.57)
310 (69.69)
RHD500 /
RHD800
7542 (1695.51)
35 (1.38) 1310 (294.50)
RHD1250 /
RHD2500
10100 (2270.57)
50 (1.97) 1750 (393.42)
RHD4000
14142 (3179.25)
55 (2.17)
2455 (551.91)
Figure 7: Shaft end
Configuring the drive element hub
The new output element is mechanically connected to the
actuator shaft via a hole with feather key groove. This
connection should be designed so that the nominal torque and
any possible max. output torque is transmitted securely. The
drive element must be mounted securely on the output drive
shaft with suitable measures to prevent axial shift. For the new
drive element, you can use the current mechanical stops.
The following parameters must be observed:
Type Hole
diameter
mm (in)
Feather key width
mm (in)
Hub length
mm (in)
PME 24
+0.033
(0.944 +0.0013)
8
−
0.015/
−
0.051
(0.31
−
0.0006 /
−
0.0020)
32 (1.26)
RHD250 30
+0.033
(1.18 +0.0013)
8
−
0.015 /
−
0.051
(0.31
−
0.0006 /
−
0.0020)
50 (1.97)
RHD500 /
RHD800
50 +0.039
(1.97 +0.0015)
14
−
0.018 /
−
0.061
(0.55
−
0.0007 /
−
0.0024)
70 (2.76)
RHD1250 /
RHD2500
70 +0.075 / +0.030
(2.76 +0.0030 / +0.0012)
20
−
0.022 /
−
0.074
(0.79
−
0.0311 /
−
0.0029)
100 (3.94)
RHD4000
85 +0.090 / +0.036
(3.35 +0.0035 / +0.0014)
25
−
0.018 /
−
0.061
(0.98
−
0.0007 /
−
0.0024)
140 (5.51)
Minimum yield strength of the hub Rp 0.2 for all actuators:
• 320
N/mm
2
(46412.80 lbf/in
2
)
Change from two to one column