The BSFI 300 brake is available in E and EE version. The EE version has extended spring pack which reduces the loss of spring force. Common applications for the BSFI 300 brakes are: Drawworks, Gearboxes in general (mono-spring). Wind turbines (mono-spring fitted to the axis on the high speed side of gearbox), Crane hoists, Winches, Ship propellers, Ski lifts, Escalators and Conveyor systems.