20
Magtrol TM Series In-Line Torque Transducers
Chapter 2 – Installation / Configuration
2.2.2
a
xIal
F
orceS
(T
hruST
)
In suspended installations, pure thrust forces (F
a
in
figure 2–3
) have practically no effect on the
measurement results, as they do not provoke any deformation of the shaft that could influence the
measurement.
In supported installations, axial thrust forces produce a strain on the bearings. This leads to premature
wear of the bearings and an increase of the residual torque. In this case, the maximum allowed axial
force for the transducer is lower than the allowed force in the case of suspended installation.
Note:
It is important to avoid the simultaneous application of radial and
axial forces on the measuring shaft of a transducer, especially with
supported installations.
The following table lists the maximal axial forces F
a
allowed for TMb, TM and TMhS Series
transducer shafts in suspended and supported installations.
model
f
a
max.
(suspended
installations)
f
a
max.
(supported
installations)
N
N
TM 301
600
35
TM 302
600
35
TM 303
1 000
35
TM 304
1 100
100
TM 305
1 500
100
TM 306
2 500
100
TM 307
3 500
100
TM 308
4 000
100
TM 309
4 500
120
TM 310
6 000
120
TM 311
10 000
120
TM 312
20 000
150
TM 313
30 000
150
TM 314
60 000
200
TM 315
80 000
200
TM 316
150 000
200
TM 317
150 000
200
