Ball cage and angular contact ball bearing

Abstract

The invention provides a ball cage and an angular contact ball bearing. The ball cage comprises a plurality of frame bodies, the end faces of the two sides of each frame body are provided with ball pockets, the surface of each ball pocket is used for contacting with bearing balls, a straight-line distance between any two points on any cross section of one frame body is smaller than the diameter ofthe bearing balls, one frame body is arranged between two adjacent bearing balls, so that the lives of the bearing balls are prolonged, the weight of bearings and the starting torque of the bearingsis reduced; and the angular contact ball bearing comprises bearing inner rings, bearing balls, bearing outer rings and the above-mentioned ball cage, ball sliding ways are arranged between the bearinginner rings and the bearing outer rings, the ball cage is used for separating the bearing balls and prevent the bearing balls from falling off, the number of the bearing balls is multiple, the numberof bearing balls is the same as that of the frame bodied, each bearing ball can slide in the ball sliding ways, and the ball cage does not affect the arranging of the bearing inner rings and the bearing outer rings, so that the contact angle of the bearings is increased.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to a bearing cage and an angular contact ball bearing. Background technique [0002] When the bearing is working, the bearing cage and the balls rub against each other, which is a dynamic friction and wear part that bears various complex stresses in the bearing. In the prior art, steel wave-shaped bearing cages or frame-type bearing cages are generally used , the contact area between the two cages and the steel balls is large, the wear is fast, and the life is short. Moreover, the friction between the cage and the steel balls is large, which will cause the initial reaction force of the bearing to be large, and the starting torque of the bearing It needs to be large, and the quality of the cage is larger, which also makes the bearing's starting torque larger and energy consumption higher. In addition, angular contact bearings can bear radial loads and axial loads at the same time, a...

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Problems solved by technology

[0002] When the bearing is working, the bearing cage and the balls rub against each other, which is a dynamic friction and wear part that bears various complex stresses in the bearing. In the prior art, steel wave-shaped bearing cages or frame-type bearing cages are generally used , the contact area between the two cages and the steel balls is large, the wear is fast, and the life is short. Moreover, the friction between the cage and the steel balls is large, which will cause the initial reaction force of the bearing to be large, and the starting torque of the bearing It needs to be large, and the quality of the cage is larger, which also makes the bearing's starting torque larger and energy consumption higher. In addition, angular contact bearings can bear radial loads and axial loads at the same time, and can work at higher speeds and contact The larger the angle, the higher the axial bearing capacity. The contact area between the cage and the steel ball in the prior art is large, which affects the contact between the steel ball and the slideway, limits the range of the contact angle, and makes the anti-overturning moment of the angular contact ball bearing Smaller, less ability to bear axial load

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