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Disc coupling for Encoders, Stepper and Servo drive applications
Disc coupling is made with pair of hubs and a thin layers of metallic disc. The metallic disc is torque transmitting element. The disc design is becoming popular in servo, stepper and drive applicationsfor transmitting torque.
Disc couplings are available in two formats : Single Disc and Double Disc Coupling. While single-disc couplings feature a pair of hubs and a single flat disc spring, double-disc couplings include an additional center spacer sandwiching a pair of disc springs. Both are flexible yet torsionally stiff, but only the double-disc coupling can readily accommodate parallel misalignment. The combination of flexibility and torsional strength makes disc couplings ideal for high-speed operations. However, discs are more delicate than the majority of couplings. Hence, specifiers should ensure that misalignment doesn’t exceed the coupling’s rating.