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