롤러 베어링의 롤링 요소를 제공하는 단단하거나 속이 빈 원통형 본체입니다.
0.4800 inches minimum and 0.5000 inches maximum overall length, 0.0623 inches minimum and 0.0625 inches maximum rolling element diameter, needle roller, spherical ends style designator, steel comp 5140 overall material