SWIVEL ASSEMBLY

摘要

A swivel assembly (2) comprising at least: (a) a first connector piece (4) having a shaft (6); (b) a second connector piece (8) having a hollow body (10) for receiving the shaft (6) of the first connector piece (4); (c) one or more bearings (12) between the first and second connector pieces (4, 8) to allow rotation thereinbetween; (d) lubricant surrounding at least one of said bearings (12); and (e) a lubricant-pressure adjuster (28). In this way, variation in the ambient pressure around the swivel assembly can be compensated for during use, and/or variation in the lubricant pressure can be achieved to hinder the ingress of unwanted material such as debris to the area between the first and second connector pieces including the bearings.