DESCRIPTION
The U-HD is a heavy duty metal encased double lip urethane wiper. The double lip design provides optimum contact with the rod to keep out contaminants. When used with a multi-lip sealing system they provide a dry clean rod.
These wipers are excellent for severe applications and are commonly found in Caterpillar and other heavy-duty off-road equipment.
SEAL INFORMATION
Material Type (Primary Seal): POLYURETHANE
Material Type (Casing): CARBON STEEL
Durometer (Shore A): 92
Temperature Range (F): -65 TO 230
Max Speed (ft/sec): 3.0
Mating Surface Roughness - Ra (µm) - DYNAMIC: 0.1<>0.4
Mating Surface Roughness - Ra (µm) - STATIC: 1.6 MAX
Part Number Definition (Metric): MMC-(ROD DIAMETER)X(OD)X(HT)U-HD
Additional Part Number Definition (Metric): 60 X 79 X 11 = MMC-60X79X11U-HD