About Us
DAN LUBELL, Owner, Oil-Free Machinery, LLC.
Dan has worked with industrial and aerospace turbomachinery, and became specialized in Oil-Free Machinery™ and high speed system rotordynamics, bearings, and production transitions with over 20 years of hands-on R&D experience. Dan has worked with industry leading technology in this area at Capstone Turbine, Honeywell Aerospace, and Calnetix Technologies. He has been a significant contributor to several new centerline designs for both conventional and oil-free systems and is as comfortable with design and test as he is with analysis. Dan has a Masters of Science in Mechanical Engineering which he earned at the Texas A&M University Turbo Lab in College Station, Texas. Prior to that, he received a Bachelors in Engineering Science from Trinity University in San Antonio, Texas. Dan has published papers on squeeze film dampers and foil bearing developments for micro gas turbines.
Dennis Weissert, Principal Engineer
Critical to the success of the Capstone microturbine, Dennis is named on many key patents that revolutionized foil bearings. With exceptional attention to detail in testing, Dennis is constantly improving the state of the art for foil bearings. He has over 20 years of oil-free turbomachinery experience. He excels at invention, testing, and breaking rules.
Joty Chauhan, Principal Engineer
Joty has over 20 years of turbomachinery experience, of which 15 years were specifically with oil-free variants. He excels at design integrations and manufacturing for all turbomachinery.
Ken Roberts, Design Engineer
Formerly a helicopter pilot with the US Army, Ken has over 30 years of turbomachinery experience, of which over 20 years were specifically with oil-free variants including over 5 years with our team. He excels at design, tool design, and manufacturing processes.
Experienced Partner Companies
Claude Kalev (Calnico)
Power Electronics, Controls, and Motor Design Specialist.
World's Largest Foil Bearings
We designed the world's largest foil bearings for Xeca's 450 ton AC compressor. Mass Production, Real-Life, Reliable. Meet us at ASME Turbo 2025 to talk about your project.