ベアリング、ローラー(改造したもの)の転動体を間隔をあけて保持するフレームまたはエンクロージャ。
0.4840 inches minimum and 0.4940 inches maximum overall width, 1.8190 inches minimum and 1.8220 inches maximum outside diameter, qq-c-465,alloy 642 fed spec 1st material response or alloy 954,type 2 or 3 fed spec 2nd material response overall material document and classification, 1.5640 inches minimum and 1.5670 inches maximum bore diameter, copper alloy 642 overall material