Linear brakes are used to slow or stop linear motion in conveyors, web systems, and vehicles. Technologies include friction, eddy current braking, and hysteresis brakes. Eddy current braking is fail-safe and totally reliable even under the toughest environmental conditions. Eddy current braking does not need any control and are completely independent of any other system. Eddy current braking is also referred to as a magnetic linear brake, which is also non-contact and thus wear-free. A permanent magnetic linear brake is a power free, deceleration system that is used in conjunction with a metal reaction plate. A permanent magnetic linear brake is used in baggage handling and people moving systems to reduce the velocity of the payload to almost zero speed. Hysteresis brakes produce torque strictly through a magnetic air gap without the use of magnetic particles or friction components. Hysteresis brakes have superior operating characteristics such as longer life, good control, less maintenance, and smooth torque, which makes them a perfect choice for precise tensioning of any material, web, or strand. Friction brakes operate on the principle that friction can be used to convert the mechanical energy of a moving object into heat energy. The heat energy is absorbed by the brake, which uses a wheel, axle, disk, or brake drum, and a stationary part that is pressed against the rotating part to slow or stop a machine. Various other technologies are also available for linear brakes.