STRAFLEX® with separate hub

Flexible element:

1 Metallic bobbins linked together by rayon fibres.­
2 The whole unit 1 is potted in natural rubber and is hexagonal.

3 Forged steel specially bored to accommodate the separate hub.
4 Universal separate hub (not supplied by PAULSTRA).

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In addition to the characteristics described above, the separate hub used in conjunction with the STRAFLEX coupling provides the advantage: ready to assemble without machining.


– Reduced size.
– Simplified axial positionning.
– Easy to assemble and disassemble.
– Reduction of costs by simplifying the machining required for the shafts and flanges.


The reinforced textile structure means that it has a low tolerance to irregularities in the torque.