BEARING DEVICE FOR WHEEL

To provide a bearing device for a wheel, in which ingress of muddy water into a projected portion side (radial inner side) is suppressed, and sealability between a sealing member and an outer-side end surface of an outer member can be therefore maintained for a comparatively long time.SOLUTION: A bearing device 1 for a wheel is provided, comprising: an outer ring 2 (outer member); a hub ring 3; an inner ring 4 (inner member); balls 8 (rolling elements); and an outer-side sealing member 10 (sealing member ). In the bearing device 1, the outer-side sealing member 10 has a core metal 11 and a sealing portion 12, and the sealing portion 12 has a projected portion 12e projecting toward an inner side and coming in contact with an outer-side end surface 2g of the outer ring 2, and a projected portion 12f disposed at a side more radial outside than the projected portion 12e, projecting toward an inner side and coming in contact with a chamfered portion 2h of the outer ring 2.SELECTED DRAWING: Figure 1 【課題】車輪用軸受装置において、突起部側（径方向内側）に泥水等が入り込むことを抑制して、突起部によるシール部材と外方部材のアウター側端面との密封性を比較的長く維持させることができるものとする。【解決手段】外輪２（外方部材）と、ハブ輪３及び内輪４（内方部材）と、ボール８（転動体）と、アウター側シール部材１０（シール部材）と、を備える車輪用軸受装置１において、アウター側シール部材１０は芯金１１とシール部１２とを有し、シール部１２は、インナー側に向かって突出して外輪２のアウター側端面２ｇに接触する突起部１２ｅと、突起部１２ｅよりも径方向外側に配置され、インナー側に向かって突出して外輪２の面取り部２ｈに接触する突出部１２ｆと、を有するものとする。【選択図】図１