Ringfeder Power Transmission pointed
out that high-performance, heavy-duty
gears have to continuously withstand
huge loads. In case of a machine breakdown caused by overload, an operation
can incur high costs due to expensive
spare parts and costly downtimes. With its
GWS series, Ringfeder said it has introduced a new range of safety couplings
from its GERWAH product segment, custom-built for heavy duty. The working
principle of the GWS series is based on a
spring-loaded ball-in-detent arrangement. When the coupling is engaged, steel balls
located within switching units are forced
into a conical detent by spring pressure.
If the disengagement torque preset on
the switching units is exceeded, the steel
balls move out of their detent in axial
direction, causing a stable separation of
the input and output side, thereby interrupting the torque transmission. The overload coupling can quickly be returned to
operating mode. Changing the preset disengagement torque requires only a few
simple steps, without having to dismount
the coupling. Depending on model size,
up to 12 standardized switching units are
located on the outer ring of the coupling,
ensuring a backlash-free connection and
reliable torque transmission between
input and output side. This allows a high
level of flexibility in terms of disengagement torque as well as coupling size and
design.
In order to meet different user
requirements, Ringfeder offers three
types of heavy-duty couplings. In addition to a coupling model with flange-hub
and keyway-hub, the portfolio includes a
flexible coupling and a rigid disc coupling, both with keyway-hubs on the
input and the output side. Optionally, the
couplings of the GWS series can be
equipped with a switching disc and a
mechanical limit switch on the motor
side. The switch signals generated by
these mechanisms can be used to switch
off the drive and to send out an acoustical or optical signal.
www.ringfeder.com
As featured in Womp 2014 Vol 06 - www.womp-int.com
