In what way are grid couplings different than chain couplings?

Grid couplings are designed to accommodate greater misalignment compared to chain couplings, primarily due to their torsional flexibility. This flexibility is achieved through the use of a grid assembly that can withstand angular, axial, and radial misalignment without transferring excessive stress to the connected shafts. This feature is crucial in applications where alignment may vary due to thermal expansion, vibrations, or other operational factors.

The ability to handle misalignment makes grid couplings particularly valuable in dynamic applications where movement and shifting can occur. This characteristic enables better performance and endurance over time, reducing maintenance needs. Chain couplings, on the other hand, have a more rigid structure that doesn’t allow for significant misalignment, limiting their applicability in scenarios where flexibility is required.