A double row angular contact ball bearing and its manufacturing process

Abstract

The invention discloses a double-row angular contact ball bearing and its manufacturing process. The main point of the technical solution is a double-row angular contact ball bearing, which includes a bearing body and a connecting side plate. The bearing body includes an inner ring and an outer ring. The inner wall of the outer ring higher than the inner ring is provided with an annular groove fixedly connected to the peripheral wall of the side plate, and a groove is opened on the peripheral wall of the connected side plate, and the annular groove is spun inward to form a protrusion, The protrusion is matched with the groove. The present invention realizes the fixing of the bearing body and the connecting side plate through the engagement of the bump and the groove, and avoids the fatigue failure of the weld seam during welding and fixing. The bump is formed by spinning the outer ring of the bearing, increasing the The connection strength of double row angular contact ball bearings is improved.

Description

technical field [0001] The invention relates to the field of bearing manufacturing, more specifically, it relates to a double-row angular contact ball bearing and a manufacturing process thereof. Background technique [0002] Double row angular contact ball bearing is a kind of bearing. Double row angular contact ball bearing generally includes two grooves inside the bearing, and balls are arranged in the groove. When the bearing rotates, the sliding friction between the bearings is changed into rolling friction. , improving the efficiency of rotation. Therefore, double row angular contact ball bearings are commonly used in various working conditions, such as automobile water pumps. [0003] The invention patent with the application number "201220721306.2" discloses a "new type of automobile double row angular contact ball bearing assembly". The circular outer edge is welded and fixed to the inner wall of the outer ring of the bearing, and at the same time, the end face of...

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Problems solved by technology

[0003] The invention patent with the application number "201220721306.2" discloses a "new type of automobile double row angular contact ball bearing assembly". The circular outer edge is welded and fixed to the inner wall of the outer ring of the bearing, and at the same time, the end face of the inner ring corresponding to the end of the connecting side plate is lower than the end face of the outer ring; this patent improves the structure of the bearing by providing a connecting side plate on the bearing Strength, but the connection of the connecting side plate by welding is not reliable. From the perspective of the bearing’s use environment, the bearing will vibrate during use, which will lead to fatigue failure of the weld, which will cause the connecting side plate to be at the connection position with the bearing. break

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