By popular demand R+W has recently developed a series of couplings for mounting to flange output servo gearheads, opening up new areas of application.

This type of gearhead is utilized by many for its high stiffness and compact design. The BK8 now allows for an equally compact flexible interface between gearheads and driven components, protecting bearings and making alignment simpler. The BK8 utilizes a stainless steel bellows which allows for a high level of torsional stiffness to be maintained while compensating for small misalignment between the mating components.

The couplings are available in a wide variety of sizes, covering torque ratings from 15Nm up to 1500Nm and for special applications up to 10,000Nm. They can be made with a variety of coupling output hubs in addition to the traditional clamping hub, such as expanding shafts and tapered conical clamping hubs.