The Backup Ring prevents seal extrusion under pressure, maintaining the shape and position of the seal during operation. Supporting the seal, the backup ring ensures that hydraulic pressure is contained and directed properly within the system. Maintain consistent sealing performance. The ring also limits wear on the primary seal by providing a hard surface against which the seal can operate, and provides predictable pressure containment and system efficiency during repeated operation cycles.Attributes:• Reduces risk of hydraulic leakage.• Provides structural support for the seal.• Maintains seal alignment within the groove.Applications: The Backup Ring of the Winch Brake is installed behind the primary seal in the brake assembly to prevent fluid leakage and maintain consistent pressure during brake operation.