롤러 베어링의 롤링 요소를 제공하는 단단하거나 속이 빈 원통형 본체입니다.
steel comp 440c overall material, needle roller, spherical ends style designator, 0.1000 inches minimum and 0.1020 inches maximum overall length, 0.2470 inches minimum and 0.2530 inches maximum rolling element diameter