A container of the present invention includes a bridging member disposed between a pair of inner side faces of a band insertion groove formed in a bottom wall. A rolling bearing is arranged above the bridging member and a band can be wound around the bearing and the bridging member together. Thus, since both a sideslip and jumping of the rolling bearing can be prevented without covers, the container is more superior in usability to a conventional container requiring a cover, and the stacking height can be suppressed as well.