Bearing cage is also called bearing retainer or separator. It is the bearing component that separates the rolling elements, and maintains the rolling elements at equal intervals to ensure smooth rolling movement between inner ring and outer ring. In addition, bearing cage helps to guide the motion of rolling elements, retain grease around the rolling elements and raceways, and prevent the rolling elements from falling out of bearings. The bearing cage can significantly minimize friction and associated heat generation from contact with rolling element surface, enabling the rolling elements to be evenly distributed and quietly rotated at a constant speed.
ZHENSHUO offers various types of bearing cages, including steel cage, brass cage and nylon cage.