Опорное кольцо с внутренним диаметром 150 мм Caterpillar 569-0114

A Backup Ring, also called a backup washer, helps to provide support and prevent the extrusion of the primary sealing element. It is made from an elastic material such as rubber and forms a secondary sealing to the bucket cylinder rod by minimizing the potential for fluid bypass or leakage. Attributes:• Helps to reduce the friction between the sealing components• Prevents the rod seal from coming into direct contact with abrasive particles Applications:A Backup Ring acts as a mechanical barrier in preventing the entry of external elements and protecting the primary sealing element of the hydraulic bucket cylinder rod.