DESCRIPTION
The MPSB is a double-acting compact piston seal designed for medium duty hydraulic applications.  The seal is comprised of a fabric-reinforced nitrile sealing ring and two L-shaped polyacetal guide bearings. 
The MPSB seal ring is a nitrile base to provide optimum elasticity and low compression set. This base is encased in fabric-reinforced nitrile that provides high mechanical strength, optimum thermal stability and extrusion resistance. 
The polyacetal guide rings provide high distortion and extrusion resistance. 
The MPSB is designed for one-piece or two-piece pistons. 
 
SEAL INFORMATION
Material Type (Primary Seal): FABRIC-REINFORCED NITRILE  
Material Type (Bearings): POLYACETAL  
Temperature Range (F): -22 TO 190  
Max Pressure (psi): 5000  
Max Speed (ft/sec): 1.5  
Mating Surface Roughness - Ra (µm) - DYNAMIC: 0.1<>0.4  
Mating Surface Roughness - Ra (µm) - STATIC: 1.6 MAX  
Part Number Definition (Metric): MPSB-(BORE DIAMETER)  
Additional Part Number Definition (Metric): 100MM BORE   =   MPSB-100