| 摘要 |
A rotator for an antenna is provided to transmit a satellite signal to a receiving device without loss by maintaining a connection state of an inner conductor and an outer conductor. A bearing support protrusion(11) is formed in a floor edge inside a body(10). A trust ball bearing is mounted on the bearing support protrusion. A cable connector(13) is formed in the center of the bottom outside the body. The bearing insertion part(22,22') is formed in the upper and lower parts of a hub(20). The trust ball bearing is inserted into the bearing insertion part. The hub is inserted into the body while fitting the trust ball bearing into the bearing insertion part. A screw part(12) is formed in the entrance of the body. A sleeve(30) is coupled in the screw part. The hub is slidingly coupled to the body by the trust ball bearing.
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