Disc Couplings

External taper ring bellow couplings are high-precision, zero-backlash, torsionally rigid flexible couplings designed for precise torque and motion transmission in applications such as servo drives and CNC machinery. The "taper ring" design allows for easy axial mounting and removal while ensuring a secure, high-pressure connection without inducing significant radial or axial forces in the delicate bellows element itself. Key Specifications and Features The specifications for these couplings vary by manufacturer and model (e.g., R+W BK6 or SP3 series), but general characteristics include: Design: Two hubs, one with a tapered male projection and an external clamping ring system for a bind-mate, press-fit connection. This design facilitates installation in axially tight spaces. Performance: Backlash: Absolutely zero backlash. Torsional Stiffness: Extremely high torsional stiffness for precise angular positioning and motion control. Misalignment Compensation: Compensates for axial, angular, and parallel shaft misalignments, while maintaining low restoring forces. Speed: Suitable for high speeds, with some models capable of up to 15,000 RPM (and higher with dynamic balancing). Overload Capacity: Typically handles brief overloads of up to 1.5 times the rated torque.