DESCRIPTION
The PB-29 is a two-piece piston seal molded from polyurethane for abrasion and extrusion resistance and employs a hard nylon anti-extrusion ring as a companion piece
This seal is typically found in Asian manufactured lift truck cylinders.
SEAL INFORMATION
Material Type (Primary Seal): POLYURETHANE
Material Type (Support Rings): NYLON
Durometer (Shore A): 90
Temperature Range (F): -40 TO 220
Max Pressure (psi): 3000
Max Speed (ft/sec): 3.0
Mating Surface Roughness - Ra (µm) - DYNAMIC: 0.1<>0.4
Mating Surface Roughness - Ra (µm) - STATIC: 0.8 MAX
Part Number Definition (Metric): MUH-(ID)X(BORE DIAMETER)X(HT)PB-29
Additional Part Number Definition (Metric): 55 X 70 X 12 = MUH-55X70X12PB-29