Shock-absorbing bearing component for belt wheel of automobile engine

Abstract

The invention relates to a bearing product, in particular to a bearing for a belt wheel of an automobile engine. According to a shock-absorbing bearing component for the belt wheel of the automobile engine, a bearing is contacted with the belt wheel; an outer ring of the bearing is sleeved with hollow cylindrical shock-absorbing pads; the two shock-absorbing pads are arranged at the two ends of the outer ring of the bearing respectively; each shock-absorbing pad comprises a metal framework on an outer layer and an elastic material on an inner layer; and a hole check ring which is positioned between the outer edge of the end face of the bearing and the belt wheel and used for limiting the position of each shock-absorbing pad is also arranged. The phenomenon of offset possibly generated between the bearing and the belt wheel is thoroughly avoided, the working stability of the bearing is improved, and the service life of the bearing and an engine wheel train belt can be effectively prolonged.

Description

technical field [0001] The invention relates to a bearing product, in particular to a bearing for a pulley of an automobile engine. Background technique [0002] Since the tensioner and idler gears used in automobile engines have been in a working environment of vibration, rapid speed change and small load-bearing area for a long time, the bearings have poor motion stability and high speed change rate when they are working. The existence of these factors will directly cause the grease in the bearing to leak out, the lubricating performance of the bearing will decrease, and the noise when the bearing is working will increase, which will bring auditory discomfort to customers; although the function of the bearing is not lost at this time, But its noise performance index can no longer meet the requirements of customers. [0003] In order to prevent the phenomenon of relative motion between the pulley and the bearing, the commonly used method is to use a large interference fit ...

AI Technical Summary

Problems solved by technology

But for the bearing mentioned in this application, it is used for the drive of the pulley of the automobile engine, and it must be in contact with the pulley stably and accurately. If the above-mentioned damping ring is used, the phenomenon of contact deviation with the pulley will still occur. On the one hand, one end of the above-mentioned damping ring is open, which will inevitably lead to unbalanced pressure at both ends of the bearing, resulting in local stress concentration of the shock-absorbing ring. At the same time, the above-mentioned shock-absorbing ring has no metal skeleton support, so its structural strength is poor, easy to deform, and difficult to install In place, affect the life of the bearing

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