Опорное кольцо, внутренний диаметр 154 мм Caterpillar 5239719

A Backup Ring, also known as a support ring used in hydraulic cylinder pistons helps to provide support and prevent extrusion of the primary sealing element. It is made from a rigid material, such as plastic, and placed on either side of the primary sealing element, creating a mechanical barrier that prevents the seal from being forced into the extrusion gap under high pressure or dynamic loads. Attributes:• Offers good resistance to wear and tear • Securely fitted within the piston groove and maintains tight sealing connectionApplications:A Backup Ring is used to provide additional support and stability to the primary seal which is placed on the hydraulic cylinder pistons and maintain their sealing properties even under high pressures or dynamic conditions.