Problem to be solved: to provide a rolling bearing with a tightening force of the seal member.The rolling bearingOuter ring 11 having outer ring track surface 11a on the inner peripheral surfaceAn inner ring 12 having an inner ring surface 12a on an outer peripheral surface thereofA plurality of rolling elements 13 which are disposed so as to be rotatable between the outer ring track surface 11a and the inner ring track surface 12a andThe sealing ring 15 is fixed to the seal attachment groove 15 formed in the axial end portion of the outer race 11 by a stop ringA seal member 20 for sealing an axial end portion of a bearing internal space 10A between an outer race 11 and an inner race 12 andEquipped withThe outer diameter of the seal memberLarger than the outer diameter of the retaining ring 30 in the seal attachment grooveThe outer diameter end portion of the seal memberIt is sandwiched between the inner peripheral surface of the seal attachment groove 15 and the outer peripheral surface of the retaining ring 30.Diagram【課題】シール部材の拘束力をより強固にした転がり軸受を提供する。【解決手段】転がり軸受１０は、内周面に外輪軌道面１１ａを有する外輪１１と、外周面に内輪軌道面１２ａを有する内輪１２と、外輪軌道面１１ａと内輪軌道面１２ａとの間に転動可能に配置される複数の転動体１３と、外輪１１の軸方向端部に形成されるシール取付溝１５に止め輪３０によって固定され、外輪１１と内輪１２との間の軸受内部空間１０ａの軸方向端部を密封するシール部材２０と、を備え、シール部材２０の外径は、シール取付溝１５内の止め輪３０の外径よりも大きく、シール部材２０の径方向外端部は、シール取付溝１５の内周面と止め輪３０の外周面との間に挟まれる。【選択図】図３
