| 摘要 |
<p>The swivel shackle has two link connection pieces (1,2) with holes (3,4) for the chain links. A roller bearing (43) is located centrally in the shackle and is housed in between two cage pieces (12,13) with a distance collar (48) located on one side. The cage pieces are screwed into one side of the shackle. The shackle is supplied with a number of lubrication channels closed to the outside by spring loaded ball valves. The passages are sealed from the outside with 'O' rings.</p> |
