Circular Cross-Section: Most shafts are cylindrical, though some may have non-circular sections for specific purposes. Power Transmission: Their primary function is to transfer rotational power from a driving source (like an engine or motor) to a driven component. Mechanical Connections: They are frequently used to mount gears, pulleys, sprockets, and other components that need to rotate. Material and Surface Finish: Shafts can be made from various materials (like steel alloys) and can have surface treatments to improve strength, wear resistance, transmit power between different parts of a machine or system.
Profiled Shafts: It's specific profiles (e.g., splines, keyways) to create positive-locking connections with other components for more robust torque transfer.