N 76.2 X 57.15 X 17.45

 

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71 U-Cup

71 (Piston Seals)

Profile 71 is a single acting fluid seal assembly that consists of the standard profile 18 single acting fluid seal and the profile 62 L shaped bearing ring (wear ring). Manufactured in very hard wearing polyacetal resin, the bearing ring was originally designed to replace conventional bronze or cast iron piston bearings, reducing the problem of cylinder bore scoring to a minimum and allowing the designer to use a compact, strong, cost effective steel piston. The inherent nature of the material enables it to settle to the bore size once it has been pressurized, therefore providing an excellent anti-extrusion member and also increasing seal life. Due to its flexibility it should not be used primarily as a bearing where severe knuckling or excessive side loading may occur. Under these conditions, the use of conventional bronze or cast iron bearings or the additional use of the profile 506 bearings is recommended.

Operating Conditions:

Maximum Speed: 0.5 m/s

Temperature: -30°C to 100°C (-22°F to 212°F)

Maximum Pressure: 700 bar

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