Pdf fluid film bearings have been extensively used in the industry because of their unbeatable durability and extremely low friction coefficient. The paper investigates in some detail, cases of bearing damage in turbomachinery, for plain cylindrical and tilting pad journal and thrust bearings. The most common type is the babbittlined, flatface thrust bearing. The shaft diameters for which the bearings are designed range from 20 mm to more than 1,000 mm. Thrust bearings vary from the ball bearing to the selfequalizing tilting pad type. Tilting pad thrust bearings tilting pad bearings for. A schematic illustration of a tiltingpad thrust bearing is seen in figure 5. Find tilted pad thrust bearings related suppliers, manufacturers, products and specifications on globalspec a trusted source of tilted pad thrust bearings information. Gtw bearings can be produced with either double or single axial faces.
On the design of tiltingpad thrust bearings dtu orbit. Pdf design and fabrication of the tiltingpad thrust bearing surface. Study of tilting pad thrust bearing characteristics with. In hydro power plants tiltingpad thrust bearings are used for carrying the. An example of a large tilting pad thrust bearing is shown in figure 2. Friction and lubrication of large tiltingpad thrust bearings mdpi. Thrust load and shaft size are the parameters used for making a bearing selection. Various types of bearing designs are discussed with regard to their effectiveness in reducing tendencies for this type of instability. Tilting pad thrust bearings are designed to transfer high axial loads from rotating shafts with minimum power loss, while simplifying installation and maintenance. Tilting pad journal bearing an overview sciencedirect. Gtw tilting pad journal bearings are designed for transfer of radial loads with optimal dynamic features and.
The numbers and letters to the left of the diagonal describe the slack side bearing see example 4. In tilting pad thrust bearings the equalizing design distributes the load more evenly among the pads compared to a nonequalizing bearing and the load capacity is greatly improved over nonequalizing bearings. These bearings are widely used in rotating machines such as turbines, compressors, pumps, etc. A design of a tiltingpad bearing is suggested which combines the bene. When a thrust load is applied, the thrust pad is designed to apply a load against the upper leveling plate which forces the lower leveling plates on either side to tilt slightly and raise the pads on the other side. Pdf friction and lubrication of large tiltingpad thrust bearings. For unequal size loaded and slack side bearings, use the appropriate reference number for each separated by a dash see example 5. The maximum loads for the various bearing types range from 0. Out of these cookies, the cookies that are categorized as necessary. Parallelstep bearings theoretically have smaller friction coef. This design results in a substantial reduction of the friction loss. February 2005 1 c 2006, pioneer motor bearing company fluid film thrust bearings.119 1098 266 678 1202 912 633 1353 634 1439 670 449 864 1263 382 357 1490 648 1503 798 168 1566 309 1016 507 949 124 556 1201 267 601 471 37 130 562 1477 1435 528 213 962 563 405 24