Quality gas bearings
Welcome to Nabtech, the leading provider of tilting pad gas bearings for high-speed applications. Our innovative bearings are designed to optimize the performance of your turbomachinery. We focus on innovative gas bearing solutions that enhance your high-speed machinery, resulting in increased efficiency, extended lifetime, and lower production costs.
Readily available
NAB-bearings are available for journal sizes ranging from 8 to 20 mm and can support rotors beyound 300 m/s.
Typical applications
High-speed tilting pad gas bearings find their use in small rotating machinery with rotational speeds exceeding 100,000 rpm. Thanks to their low frictional losses and long-lasting performance, gas bearings of this kind are particularly useful in energy-related applications, such as heatpumps, turbocompressors, micro gas turbines, and electric generators.
Turbo compressors
High-speed generators
Micro gas turbines
Working principle
Tilting pad gas bearings are considered to be the only type of gas bearings that directly address the root cause of dynamic whirl instability. Their tilting mechanism allows each pad to adapt to a changing shaft position which ensures a converging and stable gap between shaft and bearing surface. Therefore, tilting pad gas bearings can reach extremely high rotational speeds with relatively large bearing gaps, making manufacturing tolerances less strict compared to other types of gas bearings. As such, tilting pad gas bearings have both technical and economic benefits, making them an increasing popular choice for small-scale turbomachinery.
