롤러 베어링의 롤링 요소를 제공하는 단단하거나 속이 빈 원통형 본체입니다.
needle roller, spherical ends style designator, 66,aisi/dae e50100,e51100 or e52100 fed std single material response overall material document and classification, 0.1250 inches nominal rolling element diameter, 1.0000 inches nominal overall length, steel comp e50100 or steel comp e51100 or steel comp e52100 overall material