What type of bearings are commonly found in single-phase motors?

Single-phase motors typically use ball or sleeve bearings due to their efficiency and suitability for the operational characteristics of these motors.

Ball bearings are particularly advantageous because they can handle both radial and axial loads, minimize friction, and provide smoother operation at higher speeds. This makes them ideal for applications where reduced noise and improved performance are desired. They consist of balls that roll between inner and outer races, allowing for efficient motion with less wear over time.

Sleeve bearings, on the other hand, offer simplicity and lower manufacturing costs. They work by having a shaft rotate within a cylindrical sleeve, providing smooth motion with support for radial loads. While they might not handle high speeds or loads as effectively as ball bearings, they are often sufficient for the demands of single-phase applications, particularly where cost considerations are significant.

In contrast, roller bearings, leaf bearings, and magnetic bearings are less common in single-phase motors. Roller bearings have a higher frictional component and are typically used in applications where higher loads are expected. Leaf bearings are generally not encountered in motor applications, as they are more suited for specific mechanical configurations. Magnetic bearings, while advanced and able to provide frictionless motion, are usually reserved for specialized high-performance applications due to their complexity and cost. Thus, the use