R+W Coupling Technology (based out of Klingenberg, Germany) has announced two new products to its bellows coupling line: the SP6 elastomer and SP3 bellows coupling for spindle applications. These couplings feature an external clamping ring system, with the base hub components held to a very high level of concentricity between the two respective bores during the assembly process. The external clamping ring provides the advantage of symmetrical construction even when it comes to the small amounts of deformation during clamping compression onto the shafts. Any small inconsistencies in tightening the clamping system are contained to the ring itself, with the coupling straightness remaining highly accurate during installation.
