롤러 베어링의 롤링 요소를 제공하는 단단하거나 속이 빈 원통형 본체입니다.
steel comp 5140 overall material, 0.4500 inches minimum and 0.4700 inches maximum overall length, needle roller, spherical ends style designator, 0.0467 inches minimum and 0.0469 inches maximum rolling element diameter