求翻译：滚珠轴承是最普通的滚动轴承，是设计时的首选。没有设计上的特殊要求，自然而然就是滚珠轴承。当然，滚珠轴承也有多种选择，速度，载荷依然是考虑的基本依据。是什么意思？

The ball bearing is the most common bearing, and is a design choice. No special requirements on the design, naturally is the ball bearing. Of course, ball bearings also have a wide selection, speed, load is still considered fundamental basis.

Ball bearings are the most common of the rolling bearings, is the preferred design. There are no special requirements on the design, and naturally that is a ball bearing. Of course, the ball bearings also have a number of options, the speed, the load is still taking into account the fundamental basi

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Ball bearings are the most common rolling bearing, is a design-time choice. There are no special requirements on the design and naturally are ball bearings. Of course, the ball bearings also have a variety of options, speed, loading continues to be considered the fundamental basis.