Abstract

Clearance in ball bearing influences the startup torque and stiffness of bearing and affects the load distribution, load carrying capacity, and life of bearing. The present work is related to deep groove single row ball bearing with their rings groove are in a radial plane and the outer ringway track is made elliptical. During this event clearance along the bearing's circumference, rings are no longer constant and vary along with the major to the minor axis. A detailed mathematical model is developed to analyze the performance characteristics of a deep groove single row 6206 ball bearing with variable clearance. Based on Hertz elastic contact theory and contact mechanics, the radial load distribution by balls is calculated. The obtained results and other excerpts of this proposed work open the ground to study ball bearing behavior with variable clearance and its suitability in the field of bearing. The results are further compared with conventional ball bearings and found that the load shared by most loaded ball with variable clearance reduced significantly under the particular angular movement of the outer elliptical ring. Therefore the radial load carrying capacity of ball bearing can be enhanced with variable clearance.

摘要

滚珠轴承的间隙影响轴承的启动扭矩和刚度，并影响载荷分布、承载能力和轴承寿命。目前的工作涉及深沟单列球轴承，其套圈槽在径向平面内，外圈滚道制成椭圆形。在这种情况下，沿轴承圆周的间隙，套圈不再恒定，而是随着主轴到次轴发生变化。开发了一个详细的数学模型来分析变游隙深沟单列 6206 球轴承的性能特征。基于赫兹弹性接触理论和接触力学，计算了滚珠的径向载荷分布。获得的结果和这项拟议工作的其他摘录为研究可变游隙的滚珠轴承行为及其在轴承领域的适用性奠定了基础。将结果进一步与传统球轴承进行比较，发现在椭圆外圈的特定角运动下，变游隙的大部分承载球所分担的载荷显着降低。因此，可变游隙可以提高球轴承的径向承载能力。