Loading Capacity - Hbm T40Fm Montageanleitung

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Loading capacity

Nominal torque can be exceeded statically up to the limit torque. If the nom­
inal torque is exceeded, additional irregular loading is not permissible. This
includes longitudinal forces, lateral forces and bending moments. Limit values
can be found in the "Specifications" chapter (Chapter 13, page 46).
Measuring dynamic torque
The torque flange can be used to measure static and dynamic torques. The
following rule applies to the measurement of dynamic torque:
 The T40FM calibration performed for static measurements is also valid for
dynamic torque measurements.
 The natural frequency f
depends on the moments of inertia J
masses and the torsional stiffness of the T40FM.
Use the equation below to approximately determine the natural frequency f
the mechanical measuring arrangement:
+ 1
f · c
0
T
2p
 The permissible mechanical vibration bandwidth (peak/peak) can also be
found in the specifications.
Nominal (rated) torque M
+ M
nom
0
- M
nom
Fig. 8.1: Permissible dynamic loading
HBM
of the mechanical measuring arrangement
0
· 1 ) 1
J J
1 2
as a %
nom
Vibration
bandwidth
Vibration
bandwidth
and J of the connected rotating
1 2
f = natural frequency in Hz
0
J J = mass moment of inertia in kgm
1, 2
c = torsional stiffness in Nm/rad
T
200% vibration
Time t bandwidth
Vibration bandwidth
T40FM
of
0
2
A3276-2.1 en/de