Adjusting-free bearing gap axle

Abstract

The invention discloses an adjusting-free bearing gap axle of a trailer. The adjusting-free bearing gap axle is characterized in that the axle head of the axle penetrates through a hub; an inner bearing and an outer bearing are arranged between the axle head and the hub; and the outer ring surfaces of the inner bearing and the outer bearing are contacted with the inner cavity surface of the hub; the inner rings of the inner bearing and the outer bearing are contacted with the surface of the axle head; a bearing spacer bush is arranged between the inner bearing and the outer bearing; and the bearing spacer bush comprises a bush body, a first pipe port and a second pipe port. The adjusting-free bearing gap axle provided by the invention utilizes the bearing spacer bush, and the end faces of the two side pipe ports of the bearing spacer bush are respectively connected with the inner ring end surfaces of the inner bearing and the outer bearing; and a gap between the inner bearing and the outer bearing is positioned and fixed, the error generated by artificial adjustment at later stage is avoided, and the gap accuracy is improved.

Description

technical field [0001] The invention relates to the field of automobile axle heads, and more specifically relates to a trailer-free adjustment bearing clearance axle. Background technique [0002] At present, the trailer axle on the market includes a shaft head and a shaft tube. There is a hub bearing between the shaft head and the hub. The hub bearing is a pair of tapered roller bearings, which are respectively an inner bearing and an outer bearing. The surface of the inner cavity of the hub is positioned and installed, the inner surface of the inner ring of the bearing is positioned and installed with the outer circle of the shaft head, and the shaft head nut adjusts the bearing clearance. The size of the bearing clearance has a great influence on the performance of the axle. Appropriate working clearance can improve the reliability of the axle. Therefore, as an important part of the vehicle's load bearing and precise guidance, it is very important to control the assembly ...

AI Technical Summary

Problems solved by technology

The size of the bearing clearance has a great influence on the performance of the axle. Appropriate working clearance can improve the reliability of the axle. Therefore, as an important part of the vehicle's load bearing and precise guidance, it is very important to control the assembly clearance of the hub bearing. In the existing adjustment In terms of the process technology of the bearing clearance, the operation steps are cumbersome, including adjusting the clearance, adding grease, pre-tightening, loosening and other processes, which are prone to operating errors, difficult to assemble, and difficult to guarantee the clearance accuracy. Inconvenience

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