Biserial four -point contact gyro wheel bearing

The utility model discloses a biserial four -point contact gyro wheel bearing, including gyro wheel bearing inner race, gyro wheel bearing inner race and steel ball, in the raceway between gyro wheelbearing inner race and the gyro wheel bearing inner race is located to the steel ball, there is lubricating grease to form the lubricating oil film on the raceway surface between raceway and the steelball, the holder has been installed in the outside of steel ball, the outside of holder is equipped with the sealing washer, the raceway has two, by gyro wheel bearing inner race goes up the arc recess that the shape the is the same combination that corresponds with gyro wheel bearing inner race and forms, the recess with the steel ball is two -point contact, the raceway with the steel ball is four -point contact. The utility model discloses structural design is novel, and mounting adjustment is convenient, use non -maintaining, can bear come from the each side to moment, improved bearing life. 本实用新型公开了种双列四点接触滚轮轴承，包括滚