Advantages
-Very
high torsional flexibility with a linear torsional deflection characteristic
-High torsional vibration
and shock load absorbing capability
-Backlash-free torque
transmission
-Ease of assembly thanks to
the plug-in type design with ample axial float
-Compensation of major
misalignments
-Torque limitation
protecting the drive against overload
-ATEX
General
Technical Description
The ARCUSAFLEX ® coupling (short form:
AC) is a highly torsionally flexible flange coupling with an axial plug-in
facility, providing a torsionally soft connection between an internal
combustion engine and a driven machine. The highly flexible torque transmission
characteristic is achieved by a disc-shaped rubber element that is subjected to
a torsional load and enables both the absorption of high torsional vibrations
and the compensation of major misalignments. Various vulcanisates are available
to achieve optimum adaptation to the given application conditions: A natural /
synthetic caoutchouc mixture is the standard version for application
temperatures of up to 80 °C, more heat resistant mixtures for up to 100 °C /
120 °C and a silicone mixture for higher application temperatures up to 130 °C.
The
inside diameter of the rubber element is vulcanized directly to a hub body or
bolt-on sleeve. The toothed profile on the circumference of the element
provides a virtually backlash-free, positive plug-in connection to the coupling
flange when in service.
The
ARCUSAFLEX ® flange coupling series covers a torque range from 210 Nm to 72 000
Nm. Element versions of different dynamic torsional stiffnesses are available
for optimizing the torsional vibration range. The flange connection dimensions
of ARCUSAFLEX ® couplings comply predominantly with the SAE J 620 and DIN 6281
standards. Other flange dimensions or overall lengths can be provided on
request.
Shaft-to-shaft
connections when required can be met by ARCUSAFLEX ® shaft couplings which
consist of an ARCUSAFLEX ® flange coupling of the standard design equipped with
a second hub. Type approvals from a number of leading classification society
have been obtained. If required, couplings complete with a fail-safe device can
also be supplied.
ARCUSAFLEX
® couplings comply with ATEX explosion protection. They are certified according
to directive 2014 / 34 / EU and may be used in hazardous locations (categories
M2, 2 + 3). ATEX documentation to supplement the operating instructions is
available on request.
