Rigid shaft couplings are available with or without keyways in one- and two-piece and set screw designs. Ruland manufactures them from select North American bar stock in 2024 aluminum for lightweight and low inertia, 1215 lead-free steel for general purpose use, and 303 stainless steel for high corrosion resistance. Straight and step bore type rigid couplings are standard products for shafts ranging from 1/8" to 2" and 3mm to 50mm. Inch to metric conversion couplings are available by special order. Each rigid coupling is stamped with the Ruland name and the bore sizes for ease of identification. All Ruland rigid couplings are carefully made in our Marlborough, MA USA factory under strict controls using proprietary processes and are RoHS3 and REACH compliant.
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