Marketers Quest - HQ on Instagram: "Train coaches stay connected through robust coupling systems at each end, designed for strength and flexibility. These mechanisms ensure coaches remain intact during operation, handling forces from speed, braking, and turns. Coupling Basics Railway couplings mechanically link coaches, with common types like screw couplings using a turnbuckle for tension and buffers to absorb shocks. Automatic couplers, such as AAR knuckle types, feature a pivoting jaw that loc