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1·For mounting bearings on an adapter sleeve, see the relevant pages in the sections Self-aligning ball bearings, Spherical roller bearings, and CARB toroidal roller bearings.

有关安装在紧定套上的轴承，其安装要求见“自调心球轴承”、“球面滚子轴承”以及“CARB圆环滚子轴承”等章节中的相关说明。

2·Shear sleeve adapter allows ball to be run in place or dropped from surface;

采用剪切球座配合接头，能够确保投球从地面投放或送入到位；