Rigid Couplings for Machine Tool Applications
Rigid couplings are manufactured with no flexible elements and offer the greatest torsional stiffness and torque capabilities of any Ruland coupling. This makes rigid couplings a good choice for machine tool applications that require high accuracy and repeatability and in which no shaft misalignment is present.
Ruland manufactures rigid couplings with precision honed bores to ensure collinearity for a precise fit and increased torque transmission ability. Collinear bores prevent the coupling from introducing misalignment into systems where it would not otherwise exist. The result is reduced wear on joined components and increased system efficiency. Proprietary Nypatch® anti-vibration is used on clamp type rigid coupling hardware to prevent screws from loosening operation, allow for multiple screw insertions, and prevent galling. Nypatch® saves a considerable amount of time in assembly as no additional screw treatments are needed prior to the coupling being used.
Ruland rigid couplings are manufactured in set screw and one – and two-piece clamping styles in bore sizes from 1/8” to 2” and 3mm to 50mm. They are made from 1215 lead-free steel with a black oxide finish for increased torque capacity, 303 stainless steel for corrosion resistance, and lightweight 2024 aluminum for low inertia. Ruland manufactures rigid couplings in our Marlborough, MA factory under strict controls using proprietary processes.
