19
Magtrol TM Series In-Line Torque Transducers
Chapter 2 – Installation / Configuration
2.2.1
r
adIal
F
orceS
(B
endIng
)
Radial forces (F
r
in
Figure 2–3
) generate a bending momentum in the measuring shaft resulting
in displacement of its center of gravity. This disequilibrium will load the shaft periodically with
a frequency proportional to the speed of rotation. This effect is particularly noticeable at high
speeds.
C
aution
:
i
n
extreme
Cases
,
a
high
bending
forCe
may
Cause
permanent
deformation
of
the
measuring
shaft
,
leading
to
false
measuring
results
.
The following table lists the maximum radial forces F
r
allowed for TMb, TM and TMhS Series
torque transducer shafts in suspended and supported installations.
Model
f
r
max.
(suspended
installations)
f
r
max.
(supported installations)
tm / tmb
(if available)
tmhs
N
N
N
TM 301
*
8
N/A
TM 302
*
16
N/A
TM 303
*
25
25
TM 304
20
50
50
TM 305
40
80
80
TM 306
70
120
120
TM 307
60
120
120
TM 308
80
160
120
TM 309
60
150
150
TM 310
120
300
280
TM 311
200
410
280
TM 312
300
570
420
TM 313
500
550
410
TM 314
800
900
680
TM 315
1100
850
640
TM 316
2200
1460
1090
TM 317
2200
1300
980
* Suspended installation is not recommended for these models.
