Couplings are mechanical components used to connect two shafts together, enabling the transmission of power and torque while accommodating misalignment, vibration, and shock loads. Common types include rigid couplings (for precise alignment), flexible couplings (to absorb misalignment), and fluid couplings (for smooth torque transmission). Key products in this category may include jaw couplings, gear couplings, grid couplings, and universal joints. Couplings are essential in automation, machinery, and industrial systems, ensuring efficient power transfer and system longevity.