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。
steel overall material, rockwell hardness c scale 60 min 64 max special features, -50,fscm 60380 mfr ref single material response overall material document and classification, 0.5420 inches minimum and 0.5520 inches maximum overall length, 0.0943 inches minimum and 0.0945 inches maximum rolling element diameter