Question 357Steam Plants - 1st Asst/Chief70% to pass
A Kingsbury, or pivot shoe type thrust bearing, can bear much greater loads per square inch of working surface than can parallel surface bearings because provisions are made in the Kingsbury bearing _______________.
AI Explanation
The correct answer is C: for the shoes to tilt slightly, thereby allowing the formation of a wedge shaped oil film under a thrust load.
The Kingsbury or pivot shoe type thrust bearing is designed to allow the individual shoes to tilt slightly when a thrust load is applied. This tilting motion creates a wedge-shaped oil film between the shoe and the collar, which can support much greater loads per square inch compared to parallel surface bearings. The wedge-shaped oil film is what enables the Kingsbury bearing to handle higher thrust loads effectively.
The other answer choices are incorrect because they do not directly address the key feature of the Kingsbury bearing that allows it to support higher loads - the ability of the shoes to tilt and form a wedge-shaped oil film.
Related Questions
#355 In the thrust bearing assembly illustrated the total oil clearance can be correctly decreased by _______________. Illustration SE-0007 #356 In the diagrammatic arrangement of the thrust bearing, shown in the illustration, the direction of shaft rotation and the direction of thrust are indicated respectively by arrows _______________. Illustration SE-0012 #358 As found in a reduction gear drive system, thrust bearings serve to _______________.#359 While a vessel is underway the low-pressure turbine high-speed pinion is damaged. The pinion is then removed from the gear train. Under these circumstances, the main unit is capable of which speed and direction? #360 The size of the discharge ring used for the efficient operation of a disk type purifier is dependent upon the _______________.