Page 18 - Industrial Technology EXTRA 1st March 2021

Shaft misalignment compensation couplings are compact steel version, which is more rigid and can
therefore used together with the measurement handle more alternating loads, may be better suited
flange. Based on the tried and tested backlash-free to the application.”
and torsionally rigid ROBA-DS construction series, That's why customers should always consider
Mayr Power Transmission offers a version of its the application when selecting the coupling and the
compensation coupling (ROBA-DS 9110/9210) material. Here, however, it is always necessary to
specially adapted to measurement flanges, which weigh up between the material properties, for
creates ideal prerequisites for accurate example weight, rigidity or fatigue strength, and the
measurement results. final customer application, ie the actual speeds,
load alterations, load cycles, bearing distances and
Precise manufacturing bore diameters. And last but not least, of course,
These disk pack couplings reliably handle the high the price/performance ratio also counts.
speeds and even the standard version made of steel
is compact, has low mass and inertia, and achieves Steel, aluminium or titanium
speeds of up to 30,000 rpm. In addition, these In the area of measurement technology, torsional
couplings stand out due to precise manufacturing rigidity is often an important decision criterion,
especially when test stands
have the task of measuring
parameters such as torsion
angles or elasticities. Not
even titanium can match the
rigidity of steel here.
However, if the focus is on
many acceleration cycles and
the mass moment of inertia,
then lightweight versions
made of aluminium or
titanium may be the better
choice.
Titanium is particularly
suitable for endurance tests
and when many load
alternations occur. And also
in this area, there is no
with very few interfaces, high running smoothness standstill in development. “We are working with
and balance quality. leading manufacturers of measuring flanges in this
“It is our ultimate goal to produce couplings that field. In future, direct connection to new high-speed
are compact and of high performance density,” measurement flanges will be possible, and here,
emphasises Ralf Epple. “The geometric basis must too, there will be versions in various materials,”
be right. There is no point in simply designing a adds Ralf Epple.
large coupling in aluminum or titanium, when a www.mayr.co.uk

March 2021 • INDUSTRIAL TECHNOLOGY EXTRA • p18