HBM SK12, Mounting Instructions, Page: 30 / 48

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SK5, SK6, SK12
HBM A0842-2.0 de/en
17 Range of application
The slipring assemblies SK5, SK6, and SK12 transmit measurement signals
from rotating electrical transducers to stationary measuroment systems. For
that purpose the slipring heads SK6 and SK12 can be connected to shaft
ends whereas the slipring body SK5 must be fitted to shafts. The wide range
of application permits to transmit measured values from inductive and resi-
stive transducers, strain gauge applications, thermometers and thermocou-
ples as weil as other transducers. By selecting best suited materials a very
small wear as weil as high transmission quality are achieved. There is only
small thermo voltage generated between sliprings and brishes, and the con-
tact resistance between sliprings and brushes is only very small as weil as its
change with speed of rotation, temperature, and current.
There are cases where the slipring heads SK6 and SK12 cannot be fitted.
However, there is the slipring body SK5 with the appropriate set of brushes
(2 x 5 brushes). These are integral elements requiring less space than the
slipring heads SK6 and SK12.
18 Slipring head SK6, SK12
18.1 Design and function
The main parts of the slipring head are the stator with two brush arrays at op-
posite sides and a rotor with 6 or 12 hard silver slip rings. The brushes can be
engaged even with the shaft running or lifted afterwards by just turning a ring.
Worn brushes can be easily replaced. For mounting purposes the apparatus
can be separated into stator and rotor part. Then the rotor part can be fixed
either directly or via the mounting plate to the front end of a shaft.
The slipring heads SK6 and SK12 are basically alike, the only difference being
their number of sliprings contained.