| 摘要 |
The spherical bearing consists of a spherical head (10) arranged in a spherical cavity (11,12) of a piece. This cavity is made up of two jaws, one (11) the upper, and the other (12) the lower. They are joined together on one side by a hinge (15) and on the other by a lever clamp (16). These jaws are in contact with the spherical head (10) through the intermediary of supple joints (18,19).
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