Torque couplings, also known as torque limiters or torque overload couplings, are mechanical devices used to protect machinery from damage due to excessive torque. They are designed to slip when the torque exceeds a certain pre-set limit, thus preventing damage to the connected equipment. Torque couplings are commonly used in various industrial applications, such as conveyor systems, power transmission equipment, and machinery with rotating parts to ensure smooth operation and prevent costly downtime.