568-445 URETHANE 90 ORINGS -PREM GRADE

The U90445 is an AS568-445 clear Polyurethane (AU/EU) 90 Shore A O-Ring measuring an inside diameter of 7.975 in (202.57 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 8.525 in (216.54 mm). This o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.

Polyurethane (AU/EU) is known for toughness that outperforms conventional rubber compounds, very high tensile strength and load capacity. The material holds up against impact and shock loading, petroleum oils, and abrasion and wear. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Applications involving prolonged humidity at elevated temperature or ketones call for a different compound.

Common environments for this compound include press and forming equipment, hydraulic cylinders, and mining and heavy equipment.

U90445 ships individually. Nominal inside diameter is listed as 8 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation.