What is an acceptable height difference between the motor shaft and the shaft being connected?

The acceptable height difference between the motor shaft and the shaft being connected is generally understood to fall within the range of 0.20-0.40 mm. This tolerance is critical in ensuring proper alignment between the shafts, which can significantly influence the performance and lifespan of the machinery. Misalignment issues can lead to increased wear, vibration, and eventual failure of the components involved.

In most mechanical systems, maintaining precise alignment helps to achieve maximum efficiency and reduce the risk of damage. A height difference within this specified range allows for adequate coupling without overstressing the components, thereby promoting smoother operation and minimizing maintenance needs. This standard is often based on industry practices and the design parameters of the machinery used in various applications, making it a well-supported choice for ensuring reliable performance in mechanical power systems.