Failsafe Brake for Hydrostatic Drives

An automatic brake has been developed to provide emergency braking and positive position control in hydrostatic drive applications. The brake is automatically applied with the loss of hydraulic pressure to provide the emergency braking function. The brake may be applied at any time by manually dumping the fluid pressure to the brake, to provide the position control function of a parking brake. Because of the convenient mounting of the brake between the hydraulic motor and a gear reducer, the brake may be used in any hydrostatic drive application where position control and/or emergency braking is required.