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U-CUP ROD INCH

4.750" x 5.625" x 0.750" (120.65 mm x 142.88 mm x 19.05 mm)
H&D SKU: UH-43704750750R-4
Product Availability : On Back Order
$29.61

DESCRIPTION

The R-4 u-cup is a specialized rod seal design, developed from the standard symmetrical u-cup. It assures improved sealing performance due an interference fit in the groove that prevents movement of the seal during cylinder operation. With an improved lip design, the dynamic sealing lip has a heavier cross-section for improved high pressure capability. 

 

SEAL INFORMATION

Durometer (Shore A): 92 

Temperature Range (F): -40 TO 195 

Max Pressure (psi): 5000 

Extrusion Gap at Various Pressures (in):

  • 1,500 PSI: 0.024
  • 3,000 PSI: 0.012
  • 5,000 PSI: 0.006

Max Speed (ft/sec): 3.0 

Mating Surface Roughness - Ra (µin) - DYNAMIC: 4<>16 

Mating Surface Roughness - Ra (µin) - STATIC: 32 MAX 

Part Number Definition (Inch): UH-(CS)(ID)(HT)R-4 

Additional Part Number Definition (Inch): 2 X 2-1/2 X 3/8 = UH-25002000375R-4 

Products specifications
ID (Inch) 4.750
OD (Inch) 5.625
Height (Inch) 0.750
ID (Metric) 120.65
OD (Metric) 142.88
Height (Metric) 19.05
Alternate Product Codes