Tilting pad journal bearings are self-acting bearings

The tilting pad journal bearings provide a radially supported rotor, and their design is optimized through a wide operating range, allowing the rotor to be operated with minimal axial stress. They are widely used in rotating equipment and are particularly effective in high-speed applications. In addition, they provide an optimal oil wedge at each loaded pad. Their design is also easy to install and maintain, reducing the possibility of lubricant leaks.

Tilting pad journal bearings are self-acting bearings that stabilize the shaft at various points, depending on the load. They are composed of multiple, independent pads that are aligned on the shaft at varying degrees. The radial load of the rotor is the determinant factor for the tilting pad journal bearings design. The bearings are also influenced by the manufacturing and operation parameters.

Specifically, the design should be able to avoid excessive heating of the bearing area, and the material used should have sufficient thickness to support the load. Tilting pad journal bearings are also designed to provide an optimal oil wedge at each loaded pad. The lubricant film thickness is based on the lubricant selected and the speed of the machine.