SIEMENS
8
Siemens MD 10.3 · 2015
FLENDER Standard Couplings
Torsionally Rigid Couplings – SIPEX Series
General
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Design
SIPEX couplings consist of two hub parts that are connected by
means of bellows made of high-strength stainless steel.
The hubs can be coupled to the shafts by many different meth-
ods including set screws, key joint, slotted clamping hubs, half-
shell hubs, clamping hubs or expanding hubs.
Thanks to their metal bellows, SIPEX couplings are torsionally
rigid, but flexible. Misalignment between the connected shafts
deforms the metal bellows.
Coupling materials:
Depending on the coupling version, hubs are made of aluminum
(N, G, H) or steel (K, I), but stainless-steel variants are also
optionally available.
All the metal bellows are made of stainless steel and are avail-
able as single-wall or multiple-wall devices depending on size
and application. Metal bellows come in various standard
lengths.
Metal bellows can be combined with different hub versions to
create a complete unit. Once the hubs have been joined to metal
bellows, they cannot be dismantled again.
Hub versions
N:
Hub with set screws
G:
Slotted clamping hub
H:
Half-shell clamping hub
K:
Clamping hub with external taper
I:
Clamping hub with internal taper
S:
Expanding hub
Hubs are supplied as standard with bore tolerance H7 and with-
out keyway.
Versions N, G and H are optionally available with keyway in ac-
cordance with DIN 6885-1.
The fitting tolerance of the coupled shaft ends should be g6 or
h7.
Versions of SIPEX couplings
Hub variants
Type
Description
SNN
Hub with set screw on both sides
SGG
Slotted clamping hub on both sides
SGG-A
Slotted clamping hub - for axial plug-in
SHH
Half-shell clamping hub on both sides
SKK
Clamping hub with external taper on both sides
SGS
Hub 1: Slotted/Hub 2: Expanding hub
SHH-W
Drive shaft with half-shell clamping hubs
SII
Clamping hubs with internal taper on both sides
Axial plug-in
Expanding hub
Clamping hub
Internal taper
Set screw
External taper
Half-shell clamping hub
© Siemens AG 2015