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。
steel cage material, aa49e-27 h60s end item identification, inside dia 15.875; outside dia 22.225; thickness 25.4; special features, bearing,roller, needle part name assigned by controlling agency