The pressure produced within the oil wedge...

Question 1 / 270705eccefa1bacbc34ba4d47223

Question 1 of 270705eccefa1bacbc34ba4d47223

The pressure produced within the oil wedge of a rotating journal is __________.

Question 1 of 27070

The pressure produced within the oil wedge of a rotating journal is __________.

🔍 Key Concepts

• Hydrodynamic (fluid film) lubrication in a journal bearing • How relative motion between journal and bearing creates a pressure wedge in the oil film • Difference between system supply pressure and locally generated film pressure

💭 Think About

• Think about how the rotating journal pulls oil into a converging wedge between the shaft and bearing — what does this do to the oil pressure inside that wedge? • Is the pressure in the oil film only limited to the pump’s supply pressure, or can motion and geometry create a different (higher or lower) pressure locally? • If the pressure in the wedge were the same as the supply pressure, would the shaft be fully supported on a film of oil under heavy load?

✅ Before You Answer

• Compare pump (supply) pressure to dynamic pressure created by the moving shaft in a narrowing oil film. • Consider where in the bearing the load is actually carried — is it at the oil groove or in the loaded region opposite it? • Verify whether the maximum supporting pressure occurs at the point of minimum film thickness, not at the groove or inlet.

Question 1 of 27070

The pressure produced within the oil wedge of a rotating journal is __________.

the same as the pressure in the lubricating system

less than the pressure in the lubricating system

greater than the pressure in the lubricating system

highest at the oil groove location

Question 1 / 270705eccefa1bacbc34ba4d47223

Question 1 of 270705eccefa1bacbc34ba4d47223

The pressure produced within the oil wedge of a rotating journal is __________.

Back

Question 1 of 27070

The pressure produced within the oil wedge of a rotating journal is __________.