Analysis of contact stresses in tapered roller bearings (TRBs) is an important subject in mechanical systems that involve moving and rotating parts. This is because the damage resulting from contact stresses between races and rolling elements may lead to failure and long hours of down time. To make an accurate estimation of TRB performance, it is necessary to understand the stresses experienced at the contact surfaces. In this study stresses generated by combined radial and axial loads in TRB are investigated using photoelastic experimental hybrid method. A comparison between stress behaviour of TRBs and angular contact ball bearings (ACBBs) is then made. The critical areas of stress concentrations were identified. It was found that the stresses σ_x and σ_y on races of a TRB were much lower than those on ACBB. Analysis of shear stresses showed that τ_xy on the TRB were more than two times those on ACBB. This difference in magnitude was explained on the basis of the orientation of rolling elements. The study also showed that under combined axial and radial loading conditions, the critical areas of stress concentrations for TRB were mainly regions where the race thickness was smallest.

圆锥滚子轴承 (TRB) 中的接触应力分析是涉及移动和旋转部件的机械系统中的重要课题。这是因为座圈和滚动元件之间的接触应力造成的损坏可能导致故障和长时间停机。为了准确估计 TRB 性能，有必要了解接触面所承受的应力。在这项研究中，使用光弹性实验混合方法研究了 TRB 中由径向和轴向载荷组合产生的应力。然后对 TRB 和角接触球轴承 (ACBB) 的应力行为进行比较。确定了应力集中的关键区域。发现应力 σ _x和 σ _y在 TRB 的比赛中远低于 ACBB 的比赛。剪切应力分析表明，TRB 上的τ _xy是 ACBB 上的两倍多。这种大小的差异是根据滚动元件的方向来解释的。研究还表明，在轴向和径向联合载荷条件下，TRB应力集中的临界区域主要是滚道厚度最小的区域。