Bellows Couplings for Test, Measurement, and Inspection Applications
Ruland bellows couplings are made of two lightweight anodized aluminum hubs joined by a flexible stainless steel bellows. The thin walls of the bellows allow the coupling to flex under misalignment while remaining rigid under torsional loads. Engineers designing precision test, measurement, or inspection systems often choose bellows couplings because they are lightweight, accommodate all forms of misalignment, and have the greatest size-for-size torque and torsional stiffness of any Ruland flexible coupling.
Ruland bellows couplings are manufactured with a low inertia and zero-backlash making them a good choice for high torque applications that cannot support a rigid coupling due to weight or misalignment requirements. They have a balanced design for reduced vibration at speeds up to 10,000 RPM. Bellows couplings are available in clamp and set screw hubs with or without keyways in bore sizes ranging from 1/8” to 1” and 3mm to 25mm. They are manufactured in our Marlborough, MA factory under strict controls using proprietary processes.
