A ball-bearing object is a device that uses small metal balls to reduce friction between moving parts. The term 'ball-bearing objects' can refer to a variety of items, such as roller skates, skateboards, and bicycles. In this crossword, the solution for the term 'ball-bearing objects' is TEES, which stands for T-shaped objects. These objects are typically used in engineering and manufacturing applications, such as bearings, pulleys, and gears.