SIEMENS
FLENDER Standard Couplings
Taper Clamping Bushes
General information
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Siemens MD 10.1 · 2015
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Overview
Taper clamping bushes are machine elements which connect a
machine shaft with a hub part positively and non-positively. The
machine shaft must be designed as a cylinder with a keyway.
The hub part must have a conical mounting hole with special
threads and forcing-off holes.
Each Taper clamping bush size is available with a large number
of metric or imperial holes in inches and can therefore connect
the respective hub part to shafts of different diameters.
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Benefits
Hub parts must frequently be provided with a finished bore to re-
ceive the machine shaft. In the case of very economically priced
hub parts, this remachining is frequently costlier than the com-
ponent itself. With the Taper clamping bush, a very simple and
economically priced shaft/hub connection which can be used
without remachining is achieved.
Although the dimensions of the Taper clamping bushes are not
standardized, standard dimensions have become accepted, so
that replacement Taper clamping bushes are nearly always
available locally. Since in Europe and North America unfortu-
nately different fixing bolts (UNC and BSW threads) are used,
these Taper clamping bushes are not interchangeable.
Thanks to standard dimensioning, Taper clamping bushes can
be used in different hub parts, thus facilitating storage. Taper
clamping bushes are also standard stock at many specialist
dealers and so are readily available.
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Application
Taper clamping bushes are used in ELPEX-B and ELPEX-S
coupling types. Taper clamping bushes are also used in pulleys,
sprockets and, with the aid of a welded-on hub, in other compo-
nents.
© Siemens AG 2015