Ordered as U70155, this is an AS568-155 clear Polyurethane (AU/EU) 70 Shore A O-Ring built to an inside diameter of 3.987 in (101.27 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 4.193 in (106.5 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
It resists ozone, extrusion under high pressure, and abrasion and wear. That behavior comes from the compound itself: Polyurethane (AU/EU) is known for outstanding extrusion resistance at elevated pressure and long wear life in dynamic reciprocating service. Published continuous service range is -65°F (-53.9°C) to 200°F (93.3°C). Verify compatibility before use with hot water and steam or acids and bases.
Common environments for this compound include off-highway equipment, mining and heavy equipment, and hydraulic cylinders.
Order part number U70155, sold individually. Review your operating media and conditions against this specification before installation.
description 568-155 URETHANE 70 DURO ORINGS
uf_description2 3.987" (101.27MM) ID X .103" (2.62MM)
Actual_CS 0.103 inch (2.62 mm)
Actual_ID 3.987 inch (101.27 mm)
Actual_OD 4.193 inch (106.5 mm)
ProductCode Description O-Rings - Bulk - Premium