ローラー ベアリングの転動体となる、中実または中空構造の円筒形本体。
0.2480 inches minimum and 0.2500 inches maximum overall length, needle roller, conical ends style designator, steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1524 or steel comp 1025 or steel comp 1023 overall material, 0.3110 inches minimum and 0.3130 inches maximum rolling element diameter, qq-s-633 fed spec all material responses overall material document and classification