The Difference Between Cold-drawn Shaft and Stepped Shaft

  Manufacturing process: Cold-drawn shafts are typically made from cold-drawn round steel, which reduces the time required for machining the outer surface of the shaft and is suitable for small equipment such as micro motors The stepped shaft can be made from hot-rolled round steel, forging, or welding, and can be classified into single-directional stepped shafts and bi-directional stepped shafts based on the direction of the steps.

  Structural characteristics: Cold-drawn shafts are usually smooth and have no obvious steps. The stepped shaft has multiple steps of different diameters, which facilitates the installation, removal, and fixation of parts on the shaft, making it suitable for installing multiple different parts.

  Application scenario: Cold-drawn shafts are suitable for applications that do not require high machining precision and are of small size, such as miniature motors. Stepped shafts are widely used in most motors and other mechanical systems that require the installation of multiple parts, especially for important shafts with significantly different diameters. They are typically made from forgings as a blank to enhance mechanical strength and save raw materials and cutting time.