1a72e037_selection_chart_for_oil_seals___Applications
[Materials & Temperature] Polyurethane -40°C to 105°C [Use With These Fluids] petroleum oils, hydraulic oils [Applications] 
Polyurethane is an excellent material with high abrasion resistance characteristics and high tensile strength. Polyurethane oil seals are used in high pressure hydraulic systems where highly stressed parts are subject to wear. These seals are resistant to petroleum oils and hydraulic oils.
Material selection chart for oil seals.
Applications