The basic model consists of a deep groove ball bearing outer ring, an inner ring, a steel ball and a group of holding structure into. 6000 series bearings are deep groove ball bearings, inner diameter (D) to 10 mm, outer diameter (D) is 15 mm, thickness (B) for 3 mm.  Deep groove ball bearing, widely used in precision instruments, low noise motors, automobiles, motorcycles and general machinery, and other industries, is a broad class of bearing used in machinery industry. Deep groove ball bearings mainly take radial load, and can withstand a certain amount of axial load.