Stromag engineering team recently designed a hybrid Periflex CR (PCR) shaft coupling for a manufacturer of dredging systems who needed a reliable coupling solution with a small footprint for use on a new dredging vessel platform.
“The system features a 1200 HP diesel engine that drives a complex, custom-designed, eight-pad gearbox with primary output to a two-speed clutch that drives the system’s main pump, as well as hydraulic pump pads to operate a crane and auxiliaries,” the Germany based developer and manufacturer of power transmission components said in its release.
The modified PCR coupling utilized a rubber element from a similar Stromag model PCS coupling and a bolt-on adaptor hub with a splined bore.
Extensive torsional vibration analysis (TVA) work was completed on this complex multi-stream system of 9 driven components as the coupling was sized to fit within the tight space constraints of the customer’s gearbox bell housing.
The coupling’s flexible ring effectively absorbs torsional impacts.