🔍 Key Concepts

• Kingsbury thrust bearing operation and purpose of the pivoted shoes • How a wedge-shaped oil film is formed between a rotating surface and a stationary surface • Which part in the illustration is attached to the shaft (rotating) and which parts are stationary in the housing

💭 Think About

• Look at arrow "B" in the stationary view and trace exactly which two surfaces the highlighted oil wedge lies between. • Decide which component must rotate with the shaft to carry the thrust load, and which component must remain stationary and ride on the oil film. • Consider which of the answer choices actually come into contact during operation to support the axial thrust when separated by an oil film.

✅ Before You Answer

• Identify in the drawing which piece is labeled as the collar and which are the pivoted shoes, leveling plates, and base ring. • Verify that the oil wedge (arrow "B") is shown only between the rotating thrust collar face and the stationary bearing surface, not between supporting structural parts like leveling plates or buttons. • Confirm that the two parts you select are the primary load-carrying thrust surfaces, not alignment or support components.