Опорное кольцо головки цилиндра, наружный диаметр 127 мм Caterpillar 2U8920

A Cylinder Head Backup Ring is a sealing part that is used in conjunction with an O-ring to prevent extrusion under high pressure and temperature conditions within the hydraulic cylinder head. It is made of a harder material than the O-ring and is placed on the opposite side of the O-ring from the pressure source for secure sealing.Attributes:• Ensures the proper sealing function for the cylinder head• Helps to reduce friction and act as a barrier against external elementsApplications:A Cylinder Head Backup Ring acts as a barrier, distributing the load evenly across the sealing components and preventing the primary seal from extruding into the gaps between them.