| 摘要 |
A ball and socket joint is disclosed that has a pressure energized seal that can seal against pressure differentials in either direction. In one embodiment, the ball portion is supported on roller bearings for ease of movement of the ball and socket members relative to each other. In another embodiment, the ball is engaged by trunnions that allow the rotation of the ball relative to the socket to be limited to a variety of axes or rotation.
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