These are the same as those used for the main bearings.

这些轴承与那些被用作主要轴承的轴承相同。

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Used for sliding parts and seals but not load-carrying bearings.

适用于滑动部件和密封件，但不适合负荷轴承。

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Single-direction and double-direction angular contact thrust ball bearings (Figures 1.50 and 1.51) are used for machine tool spindles requiring rigid axial guidance.

单向和双向推力角接触球轴承（图1.50和1.51）都用机床主轴轴向刚性作为指导。

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For centuries, the wizardry of watchmaking was to take brass, steel, and the jewels used as bearings for the gears, and turn them into tiny works of art that also seemed to take the pulse of the cosmos itself.

FORBES: Tech, Tock: Cartier, The Crisis Of Luxury, And The ID Two Concept Watch (Part 1)