What are the different types of rigid couplings?
There are two basic styles of rigid couplings: the set screw type and the clamping type, which comes in both one-piece and two-piece styles. Most couplings are available in steel, stainless steel and some smaller sizes in aluminum. Almost all couplings (except smaller bores) are available with a keyway for increased ability to transfer torque. Set-Screw Coupling The rigid set-screw coupling (Climax premium “RC”-Series) like the set-screw collar is secured to the shaft by a set-screw that impinges upon the shaft. Clamping Couplings One-Piece clamping couplings have four tangential screws that when tightened grip the shaft without marring it. The two-piece clamping coupling has eight tangential screws (four on each side) and can be assembled without removing other components that may be on the shaft.
