Disc Couplings for Automation & Linear Motion
Ruland disc couplings are zero-backlash and have high torque, high torsional stiffness, and a balanced design making them an ideal fit for a variety of automation and linear systems. They are manufactured in single and double disc styles. Single disc couplings are comprised of anodized aluminum hubs and stainless steel disc springs. They are ideal for space constrained applications, however designers must be careful when using them as they cannot accommodate parallel misalignment. Double disc couplings are made of anodized aluminum hubs, an anodized aluminum or acetal spacer (for electrical isolation), and stainless steel disc springs. The double disc style can accommodate greater amounts of all types of misalignment than single disc types, including parallel misalignment.
Disc couplings have similar performance characteristics to bellows couplings with slightly less torque in exchange for better misalignment capabilities. They are well-suited for linear and automated systems that require high torsional rigidity and speed up to 10,000 RPM, such as those found in precision handling applications and factory automation. They are available in clamp and set screw hubs with or without keyways in bore sizes ranging from 1/8” to 1-1/4” and 3mm to 32mm.
