What are Curved Jaw Couplings?

Curved jaw couplings are well suited to servo applications where accuracy of torque transmission is required. The three-piece design, consisting of curved jaw hubs which are press fit into an elastomeric spider, allows the coupling to operate with zero-backlash. www.ruland.com...

[@dattadthakare4222]

Always got confused it with Oldham's coupling

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I can barely hear it.