642-6576: Hydraulic Stick Cylinder Seal O-Ring

A Hydraulic Cylinder Backup Ring is used in hydraulic cylinders to enhance sealing effectiveness and prevent extrusion of the primary seal. It is installed on the piston or rod of the hydraulic cylinder and works in conjunction with the primary seal, such as an O-ring or a lip seal. The backup ring is made to provide support to the primary seal, preventing it from being forced into the extrusion gaps under high pressure or during dynamic movements.

Attributes:
• Exhibits good wear resistance, withstands the friction and rubbing that occurs within the cylinder groove
• Ensuring protection of seals from extrusion, integrity, and efficiency under extreme operating conditions

Applications:
A Hydraulic Cylinder Backup Ring is positioned adjacent to the primary seal, acts as a mechanical barrier that resists extrusion of the primary seal and provides support against hydraulic forces.

• Inner Diameter (in): 4.23

• Inner Diameter (mm): 107.54

• Material: Rubber,Other Rubber

• Weight (kg): 0.01

• Weight (lb): 0.01

• Polymer: NBR (Nitrile butadiene)

• Material Hardness: 90A

• Dash Size: 244