The stator wheel's axial position is usually controlled by ____________.

The stator wheel's axial position is usually controlled by ____________.

• A. Thrust bearings or washers
• B. The rotating impeller
• C. The clearance between the elements
• D. Changing the curvature of the elements

Answer: (A)

Controlling the axial position of a stator wheel is handled by components that locate it along the shaft and take the thrust generated during operation. Thrust bearings or washers are designed to support axial loads and set the precise spacing, keeping the stator in the correct position relative to the rotor. This keeps the axial clearance consistent so the rotor and stator don’t rub and the machine runs smoothly. The rotating impeller isn’t used to position the stator because it’s the moving part whose motion should not determine fixed axial placement. The clearance between elements describes how much gap exists, but it doesn’t actively set where the stator sits. Altering curvature would change flow paths or blade geometry, not establish the axial location.

Controlling the axial position of a stator wheel is handled by components that locate it along the shaft and take the thrust generated during operation. Thrust bearings or washers are designed to support axial loads and set the precise spacing, keeping the stator in the correct position relative to the rotor. This keeps the axial clearance consistent so the rotor and stator don’t rub and the machine runs smoothly.

The rotating impeller isn’t used to position the stator because it’s the moving part whose motion should not determine fixed axial placement. The clearance between elements describes how much gap exists, but it doesn’t actively set where the stator sits. Altering curvature would change flow paths or blade geometry, not establish the axial location.