Design Engineering

Ruland bellows and disc couplings with higher torque

By DE staff   

Motion Control Power Transmission

Ruland now offers bellows and double disc couplings with bore sizes up to 1-3/4 in or 45 mm for use in systems with torque up to 1,4000 in-lbs (158 Nm). High torque applications commonly found in precision semiconductor, solar, conveyor, and factory automation applications often use these shaft sizes. Ruland disc and bellows couplings accommodate all forms of misalignment, are zero-backlash, and have a balanced design for reduced vibration at speeds up to 10,000 rpm.

Ruland bellows couplings have the highest size-for-size torque and torsional stiffness capacity of Ruland flexible couplings. They are comprised of two anodized aluminum hubs mated to a stainless steel bellows. The thin walls of the bellows allow it to remain flexible under misalignment conditions while maintaining rigidity under torsional loads.

Double disc couplings offer more misalignment than bellows couplings at the expense of torque and stiffness. They are made from two anodized aluminum hubs, two sets of disc springs, and an anodized aluminum center spacer. The double disc design allows the sets of disc springs to operate independently of each other for full misalignment capabilities.



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