随着航空发动机技术的发展，对滚珠轴承的速度特性要求也越来越高。
With the development of aeromotor technology, more strict speed performance of ball bearing is required.
就滚珠来说，在9毫秒之内。
小滚珠的临界速度，也许是每秒几百米。
Well, this critical speed for a small ball bearing would be some hundred meters per second.
这里是速度，这里是滚珠的半径。
Here you see the speed, and here you see the radius in meters of the ball bearings.
潜艇船身上崩掉了一个滚珠轴承。
不是半径，而是这些滚珠的直径。
Not the radii but I will give you the diameters of these ball bearings.
高硬度和可重复性特点滚珠丝杠驱动器。
High stiffness and repeatability characterize the ball screw drive.
移动部件均由进囗滚珠丝杆及直线构成。
Moving parts are imported of ball screws and straight line rail.
我们公司经营滚珠轴承。
如果你能让滚珠，有这么高的速度，这两项就会相等。
If you could give the ball bearing such a high speed, then the two terms are equal.
选择滚珠除臭剂和美容产品而不是喷雾罐。
Opt for roll on deodorant and beauty products rather than aerosol cans.
前后端盖装有永久密封和自润滑的滚珠轴承。
Permanently sealed and lubricated ball bearings front and rear.
现在的问题是，如果滚珠开始下落，会达到多大速度呢？
And so the question now is, if this ball bearing starts to fall, what is the speed that it will achieve?
轴承的设计可以作为辅助或滚柱轴承滚珠轴承。
Slewing bearings can be designed as ball bearings or roller bearings.
为确保高速，采用陶瓷滚珠轴承与主轴斜向接触。
Spindle support on ceramic balls bearings at oblique contact for high speed.
滚珠的临界速度，是每小时100英里，低得多。
The critical velocity of the Karo syrup would be 100 miles per hour for a quarter-inch ball bearing.
低扭矩所需的驱动负载，由于高效率的滚珠丝杠。
Low torque required to drive the load due to high efficiency ball screw.
活动部件是由合金钢制成，并且在滚珠轴承上运行。
The moving parts are made of alloy steel and run on roller bearings.
我们用滚珠实验-,记得吗？,我们做了一些大型试验。
We dealt exclusively with spheres-- remember? And we did some huge experiments.
它们在液体中-，这是液体，这是，要放入液体的滚珠。
They are in the liquid — So here is the liquid, and the ball bearings are dropped from above.
滚珠螺母：轻松访问，总调节功能，在工厂或现场安装。
Ball Nut: Easy access, total adjustability, factory or field installed.
现在我们要看看，不同的滚珠，不同的尺寸，我将展示该如何实验。
Now we are going to look at the various ball bearings, the various sizes, and I'll show you how we do the experiment.
这个例子好一些：“Widgets公司生产各种大小的滚珠轴承。”
This is better: "Widgets, Inc. provides ball bearings of all sizes."
该指南杆和轴承系统的负载，同时支持的滚珠丝杠驱动器的负载。
The guide rod and bearing system support the load while the ball screw drives the load.
滚珠丝杠由于运动效率高、发热小，故可实现高速进给(运动)。
Ball screw due to high movement efficiency, small heat, it can achieve high-speed feed (motion).
滚珠丝杠由于运动效率高、发热小，故可实现高速进给(运动)。
Ball screw due to high movement efficiency, small heat, it can achieve high-speed feed (motion).
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