bearing ball

基本解释

This paper explains the principle of bearing ball lapping and forming sphere.
论述了轴承球研磨的原理及成球机理；
In this tutorial, you will learn how to create a ball bearing using an Array Object.
在本教程中，您将学习如何创建一个使用数组对象的球轴承。
With the compared of many plans, to change the column bearing into ball bearing can increase resonant frequency of pump without other element modified and avoid resonating in the axial piston pump.
通过多种方案比较，本文采用将柱塞泵前端的圆柱滚子轴承改成深沟球轴承，可以实现在不改动柱塞泵其他零件尺寸的前提下，提高柱塞泵的模态频率，使柱塞泵更不易发生共振。

These are relatively small pieces of the earth's crust that, when caught between two larger plates, spin around as the larger plates move—like a ball-bearing caught between two surfaces.
ECONOMIST: Geophysics