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 methods 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 available 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 without keyway.

Versions N, G and H are optionally available with keyway in accordance with DIN 6885-1.

The fitting tolerance of the coupled shaft ends should be g6 or h7.

Versions of SIPEX couplings:

Hub variants

Set screw

Clamping hub

Axial plug-in

Half-shell clamping hub

External taper

Internal taper

Expanding hub