Definition

1. Noun:
   • A revolving rod that transmits power or motion: A cylindrical mechanical component that spins around its longitudinal axis to transfer energy, torque, or movement from one part of a machine to another.

Usage Examples

• Noun:
  • The engine's rotating shaft connects directly to the gearbox.
  • A broken rotating shaft caused the entire assembly to seize.
  • Power from the turbine is delivered via a long, steel rotating shaft.

Advanced Usage

• Technical Context: In engineering, a "rotating shaft" is a fundamental element in systems like motors, pumps, compressors, and transmissions. Its design must account for factors like torsional stress, rotational speed, and bearing support.
  • The design team analyzed the fatigue life of the rotating shaft under maximum load.

Variants and Related Words

• Shaft (noun): A broader term for a long, cylindrical rod or bar. Not all shafts rotate (e.g., a stationary axle).
• Drive Shaft (noun): A specific type of rotating shaft that transmits torque from the engine to the wheels in a vehicle.
• Rotor Shaft (noun): The rotating shaft within an electric motor or turbine.
• Axle (noun): A shaft on which a wheel rotates. An axle may or may not itself rotate, depending on the design.

Synonyms

• Spindle: A slender rotating shaft, often used in machinery for holding a tool or workpiece.
• Arbor: A shaft or spindle on which a cutting tool or workpiece is mounted.
• Mandrel: A shaft or bar used to hold a workpiece during machining.

Related Phrases

• Shaft Rotation: Refers to the act or speed of the shaft's spinning motion.
  • Monitor the shaft rotation to ensure it does not exceed the rated RPM.
• Shaft Alignment: The process of ensuring two or more rotating shafts are correctly positioned relative to each other.
  • Proper shaft alignment is critical for reducing vibration and wear.

Noun

1. a revolving rod that transmits power or motion