🔍 Key Concepts

• Kingsbury thrust bearing design and how the tilting pads are arranged around the thrust collar • How hydrodynamic (oil wedge) lubrication works in thrust bearings • Typical oil supply method needed to maintain a continuous oil film between collar and shoes

💭 Think About

• Think about whether Kingsbury thrust bearings rely on a simple oil bath or a more directed way of getting oil between the collar and each shoe • Consider how the bearing must be lubricated to maintain a stable, continuous oil wedge at all speeds and loads • Ask yourself which option best supports forming and maintaining a thin film of oil between the thrust collar and the shoes, rather than just wetting the outside of the assembly

✅ Before You Answer

• Verify which method ensures a continuous flow of clean oil directly to the thrust collar/shoe interface • Eliminate any option that only lubricates the outside of the assembly without assuring oil delivery to the working faces • Check which choice is most consistent with modern hydrodynamic thrust bearing practice for high-load marine main engines and reduction gears