The SantoLubes® ultEbase® Synthetic Base Oils are based on a patented Group V synthetic base oil technology developed to support efficient lubrication performance in demanding mechanical systems. ultEbase® base oils exhibit ultra-low elastohydrodynamic (EHD) shear strength designed to improve energy efficiency in gearbox applications.
The molecular structure of ultEbase® results in elastohydrodynamic shear strength that can be up to 35% lower than PAG and up to 45% lower than PAO base oils. This characteristic helps reduce internal friction losses and supports more efficient torque transfer within gearbox systems.
In addition to ultra-low EHD shear strength, ultEbase® base oils provide high viscosity index, high heat capacity, and high thermal conductivity that help lower operating temperatures during operation. The combination of these properties supports efficient lubrication across a wide temperature range and contributes to stable lubricant performance in demanding industrial environments.
ultEbase® base oils are available in ISO viscosity grades from ISO 10 to ~ISO 680, providing formulation flexibility across a wide range of lubrication requirements.
Key application areas include:
ultEbase® base oils can also be produced from bio-derived feedstocks derived from renewable sources.
ultEbase® is designed for applications where lubrication efficiency, temperature control, and mechanical reliability are critical to system performance. The base oil technology combines ultra-low elastohydrodynamic shear strength with high viscosity index, supporting efficient lubrication in systems that experience significant sliding contact.
In gearbox applications, reduced EHD shear strength helps improve torque transfer efficiency by lowering internal fluid friction within the lubricant film. This property, combined with favorable thermal conductivity and heat capacity, helps reduce operating temperatures and supports stable lubricant performance under demanding operating conditions.
The balance of physical properties associated with ultEbase® base oils includes:
These properties support efficient lubrication across a wide range of industrial applications, particularly in gear systems with significant sliding contact in their meshing cycle, including worm gear systems.
ultEbase® base oils are suitable for formulation into lubricants used in gearboxes, wind turbines, oven chain systems, compressors, hydraulic systems, greases, and additive packages where efficient lubrication and thermal performance are required.
ultEbase® 2 represents an extension of the patented ultEbase® synthetic base oil technology platform. Like ultEbase®, these base oils exhibit ultra-low elastohydrodynamic shear strength and high viscosity index, supporting efficient lubrication performance in demanding gearbox environments.
The molecular characteristics of ultEbase® 2 support efficient torque transfer and stable lubricant film behavior in elastohydrodynamic lubrication conditions where sliding contact occurs between mechanical components.
Available in ISO viscosity grades from ISO 10 to ~ISO 680, ultEbase® 2 base oils provide formulation flexibility for a wide range of lubricant applications requiring efficient lubrication and favorable thermal properties.
The base oil technology also provides high heat capacity and thermal conductivity, helping reduce operating temperatures and support stable lubricant performance across a wide range of operating conditions.
Request Technical Information or a Sample If you would like to evaluate ultEbase® base oils in your application, SantoLubes® can provide additional technical information and sample material for testing.
Contact our technical team to discuss your formulation requirements, request a product sample, or explore how ultEbase® technology can support improved lubrication performance in your system.