Description
Caterpillar part number 1-5J-5402 refers to a hydraulic piston seal assembly commonly used in Caterpillar equipment
Type: Two-piece piston seal
Application: Used in hydraulic cylinders to provide a pressure-tight seal between the piston and cylinder wall.
Common Uses: Agriculture hydraulics, mobile hydraulics, machine tools, hydraulic presses, and Caterpillar machinery.
Specifications
Outer Diameter (OD): 101.6 mm (4.000 inches)
Inner Diameter (ID): 84.71 mm (3.335 inches)
Height: 6.40 mm (0.252 inches)
Material:
Seal Ring: PTFE (filled with 15% glass and 5% MoS₂ for durability and low friction)
Expander Ring: Nitrile rubber (70A durometer)
Temperature Range: -40°F to 212°F
Max Pressure:
With wear rings: 3,000 psi
Without wear rings: 5,000 psi
Max Speed: 12 ft/sec
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