一種單排或多排減摩軸承,帶或不帶內圈或外圈,其特點是滾輪尺寸相對較小,直徑通常不超過 0.250 英吋(6.35 毫米),長度通常比直徑長。
mil-g-81322 mil spec single material response lubrication material document and classification, 0.4375 inches nominal bore diameter, 0.9375 inches nominal inner ring width, lips turned outwardly bearing seal type, rigid alignment type