PROBLEM TO BE SOLVED: To provide a wheel bearing device which is suppressed in the excess and shortage of a fastening margin between a side lip and a slinger of a sealing device, and excellent in sealing performance.SOLUTION: A wheel bearing device 1 has an outer ring member 10, an inner ring 30, a hub shaft 20 having a hub flange 22 at an end part of an external periphery at one side, rolling bodies 30, and a sealing device 50. The sealing device 50 has a slinger 60 and a seal member 51, the slinger 60 has a cylinder part 61 and a disc part 62, the seal part 51 has a side lip 58 which opposes the disc part 62, and an end part 59 of the side lip 58 slide-contacts with a side face 65 of the disc part 62 with a proper fastening margin Δ. The hub shaft 20 has an inner ring abutment face 26, and sets a difference between a first clearance L1 between an end face 34 of the inner ring 30 and a tip 59 of the side lip 58 at the disc part side, and a second clearance L2 between the inner ring abutment face 26 and the side face 65 of the disc part 62 to a value equal to the proper fastening margin Δ.SELECTED DRAWING: Figure 2
【課題】密封装置のサイドリップとスリンガとの間のしめしろの過不足を抑制し、密封性能に優れた車輪用軸受装置を提供する。【解決手段】外輪部材10と、内輪30と、外周に一方側の端部にハブフランジ22を有するハブ軸20と、転動体30と、密封装置50と、を有し、密封装置50は、スリンガ60とシール部材51とを有し、スリンガ60は、円筒部61と、円盤部62を有し、シール部51は、円盤部62に対向するサイドリップ58を有し、サイドリップ58の端部59は、円盤部62の側面65に、適正なしめしろΔをもって摺接する車輪用軸受装置1であって、ハブ軸20は、内輪突き当て面26を有し、内輪30の端面34とサイドリップ58の円盤部側の先端部59との間の第1間隔L1と、内輪突き当て面26と円盤部62の側面65との間の第2間隔L2との差を、適正なしめしろΔに等しく設定する。【選択図】図2
WHEEL BEARING DEVICE, PROCESSING METHOD OF WHEEL BEARING DEVICE AND ASSEMBLING METHOD OF WHEEL BEARING DEVICE
車輪用軸受装置、車輪用軸受装置の加工方法および車輪用軸受装置の組立て方法
02.02.2017
Patent
Elektronische Ressource
Japanisch
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