Deep groove ball bearings are commonly used in a wide range of applications, including electric motors, pumps, gearboxes, conveyors, and various machinery and equipment. Their ability to handle both radial and axial loads, combined with their low friction and high efficiency, makes them versatile and widely utilized in industrial, automotive, and consumer products.

In summary, the key differences between needle roller bearings and cylindrical roller bearings lie in their design, load-carrying capacity, and application suitability. Each type of bearing is tailored to meet specific operational requirements and environmental conditions in diverse industrial applications.