Drives, Motors & Gears
Cross + Morse
Power Transmission
Manufacturing Specialists in the UK
Since 1984
◊ Manufacturing up to 1450mm diameter
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Cross + Morse. Shady Lane, Great Barr. Birmingham. B44 9EU [email protected] Tel: +44 (0)121 360 0155 Fax: +44 (0)121 325 1079 www.CrossMorse.com
KTR SET TO LAUNCH NEW
BACKLASH-FREE SHAFT COUPLING
Power transmission component
manufacturer KTR has developed a new
backlash-free, vibration-reducing shaft
coupling for drives with severely high
speeds.
The flexible ROTEX® GS HP achieves
peripheral speeds of up to 175 metres per
second and is available in three sizes, with
a further three sizes being developed for
introduction in the first quarter of 2018.
The coupling has very compact
dimensions, meaning the driving and
driven shafts can be pushed together to
within a few millimetres. This allows the
design engineer to keep the mounting
space short.
The coupling can be used in machine
tools, along with measurement and test
bench technology.
KTR is set to launch the product at
engineering expo EMO Hanover, which
takes place between 18-23 September.
KTR Product Manager Johannes Deister
said: “Couplings which have an open
shape reach their limits with high-speed
drives quickly, as centrifugal forces
heavily deform the coupling hubs
and spider. This increases the tension
generated and limits the
maximum speed of the
coupling.
“The large number of elastomer
segments transmitting the torque
reduces the surface pressure on every
single elastomer, which allows for
transmitting high torques with a small
outside diameter of the coupling.”
“KTR’s ROTEX® GS HP
has a circular and
closed design, which
reduces the radial
deformation of the
hub geometry. It also
does without a spider.
“Individual elastomers
are embedded between
the cams instead, which
are kept in position and
shape by the closed
design of the coupling,
even with peripheral
speeds of up to 175
metres per second.
Issue 29 PECM
65