单列向心球轴承是使用最广泛的一类滚动轴承,它主要用于承受径向载荷,也可同时承受较小的轴向载荷。在转速较高而又不宜采用推力球轴承时,它可用来承受纯轴向载荷。为了提高轴承的刚度,常常对轴承进行预紧(预过盈)。然而,用碟形弹簧对单列向心球轴承进行预紧的方法至今却鲜为人知。本文介绍对轴承进行预紧,从而提高轴承刚度的原理,着重介绍用碟形弹簧对单列向心球轴承进行预紧的原理和方法,旨在推广碟形弹簧在我国机械工业中的应用。一、轴承的预紧原理当向心球轴承承受轴向载荷时,内、外圈之间将 Single row radial ball bearings are the most widely used type of rolling bearing, which is mainly used to bear radial load, but also can withstand smaller axial load. It can be used to withstand pure axial load at high speeds and should not be used with thrust ball bearings. In order to increase the rigidity of the bearing, the bearing is often preloaded (pre-interference). However, the method of pretensioning a single row radial ball bearing with a disc spring has not yet been known. This paper introduces the preload on the bearing, thereby enhancing the principle of bearing stiffness, focusing on the introduction of the disc spring on the single row radial ball bearings preload principle and method to promote disc springs in China’s machinery industry. First, the principle of preload bearing When the radial ball bearings to withstand axial load, the inner and outer rings will be