Four point contract center-oriented thrust ball bearing.

四点接触向心推力轴承。

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Single thrust ball bearing can be subject to the axial load from single direction.

单向推力球轴承可承受单一方向的轴向载荷。

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Single thrust ball bearing can be subject to the axial load from single direction.

单向推力球轴承可承受单一方向的轴向载荷。

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