축 방향 추력에 저항하거나 축 방향 하중을 지지하도록 설계된 롤러 롤링 요소가 있는 마찰 방지 베어링입니다.
zzzy criticality code justification, material controlled iaw ss800-ag-man-010/p-9290 system certification produres and criteria manual for deep submergence systems; critical item for safety and survival of deep submergence research and rescue vehicles as differentiated by special test features reference number differentiating characteristics, relief valve 1 x 2 ips end item identification