DESCRIPTION
The MMC-N series press-in wiper is a metal encased wiper manufactured from a corrosion-resistant carbon steel case with a hard nitrile wiping/scraping lip chemically bonded to it. 
The MMC-N wiper is designed to handle tough scraping problems such as mud, ice and weld spatter. 
 
SEAL INFORMATION
Material Type (Primary Seal): NITRILE  
Material Type (Casing): CARBON STEEL  
Durometer (Shore A): 90  
Temperature Range (F): -40 TO 220  
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)-N  
Additional Part Number Definition (Metric): 70 X 80 X 7   =   MMC-70X80X7-N