A conveyance facility for conveying an article along a conveyance path (11, 12, 13), comprising: a conveyance unit comprising a pair of traveling bodies traveling on the conveyance path, and a support traveling with the pair of traveling bodies and supporting the article being suspended, the conveyance unit conveying the article along the conveyance path, wherein the conveyance path includes a straight section (11, 12), and a curve section (11a, 11b, 12a, 12b) extended from the straight section (11, 12), wherein the curve section (11a, 11b, 12a, 12b) comprises: a rotating body rotatable along the curve section (11a, 11b, 12a, 12b) and in frictional contact with the support; a traveling-body guide rail guiding the pair of traveling bodies so as to be travelable along the curve section (11a, 11b, 12a, 12b); and wherein the traveling-body guide rail comprises: a rotation guide rail guiding one traveling body of the pair of traveling bodies, and rotating with the rotating body; and a fixed guide rail guiding another traveling body of the pair of traveling bodies, and being provided along the rotation guide rail, characterized in that the curve section (11a, 11b, 12a, 12b) further comprises a support guide rail guiding the support along the curve section (11a, 11b, 12a, 12b), and the rotating body includes: a frictional contact portion coming into frictional contact with the support; and a meshing contact portion being meshed with the support, and wherein the meshing contact portion is provided lower than a position where the frictional contact portion is provided in the rotating body. a conveyance unit comprising a pair of traveling bodies traveling on the conveyance path, and a support traveling with the pair of traveling bodies and supporting the article being suspended, the conveyance unit conveying the article along the conveyance path, wherein the conveyance path includes a straight section (11, 12), and a curve section (11a, 11b, 12a, 12b) extended from the straight section (11, 12), wherein the curve section (11a, 11b, 12a, 12b) comprises: a rotating body rotatable along the curve section (11a, 11b, 12a, 12b) and in frictional contact with the support; a traveling-body guide rail guiding the pair of traveling bodies so as to be travelable along the curve section (11a, 11b, 12a, 12b); and wherein the traveling-body guide rail comprises: a rotation guide rail guiding one traveling body of the pair of traveling bodies, and rotating with the rotating body; and a fixed guide rail guiding another traveling body of the pair of traveling bodies, and being provided along the rotation guide rail, characterized in that the curve section (11a, 11b, 12a, 12b) further comprises a support guide rail guiding the support along the curve section (11a, 11b, 12a, 12b), and the rotating body includes: a frictional contact portion coming into frictional contact with the support; and a meshing contact portion being meshed with the support, and wherein the meshing contact portion is provided lower than a position where the frictional contact portion is provided in the rotating body. a rotating body rotatable along the curve section (11a, 11b, 12a, 12b) and in frictional contact with the support; a traveling-body guide rail guiding the pair of traveling bodies so as to be travelable along the curve section (11a, 11b, 12a, 12b); and wherein the traveling-body guide rail comprises: a rotation guide rail guiding one traveling body of the pair of traveling bodies, and rotating with the rotating body; and a fixed guide rail guiding another traveling body of the pair of traveling bodies, and being provided along the rotation guide rail, characterized in that the curve section (11a, 11b, 12a, 12b) further comprises a support guide rail guiding the support along the curve section (11a, 11b, 12a, 12b), and the rotating body includes: a frictional contact portion coming into frictional contact with the support; and a meshing contact portion being meshed with the support, and wherein the meshing contact portion is provided lower than a position where the frictional contact portion is provided in the rotating body. a rotation guide rail guiding one traveling body of the pair of traveling bodies, and rotating with the rotating body; and a fixed guide rail guiding another traveling body of the pair of traveling bodies, and being provided along the rotation guide rail, characterized in that the curve section (11a, 11b, 12a, 12b) further comprises a support guide rail guiding the support along the curve section (11a, 11b, 12a, 12b), and the rotating body includes: a frictional contact portion coming into frictional contact with the support; and a meshing contact portion being meshed with the support, and wherein the meshing contact portion is provided lower than a position where the frictional contact portion is provided in the rotating body. a frictional contact portion coming into frictional contact with the support; and a meshing contact portion being meshed with the support, and wherein the meshing contact portion is provided lower than a position where the frictional contact portion is provided in the rotating body.