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。
rigid alignment type, two lips on outer ring drawn over shoulders of inner rings id chamfered both sides 0.0250 in. to 0.0100 in. by 45 deg special features, grease lubrication material, afbma std tolerance for industrial needle bearings standard tolerance designation, steel overall material