To provide a hub unit bearing capable of suppressing creep and relative displacement in an axial direction with respect to a hub, and comprising a seal device including a sliding contact ring with a manufacturing cost reduced.SOLUTION: A sliding contact ring 50 of a seal device 5a has an outside sliding contact ring 26 and an inside sliding contact ring 27. The outside sliding contact ring 26 has an annular sliding contact core 29 that is spaced radially outward from the outer peripheral surface of a hub 3, and an elastic member 30 fixed to the radially inner end of the sliding contact core 29 and externally fitted to the outer peripheral surface of the hub 3, where the outside sliding contact ring is arranged adjacent to the axially inner side of a rotary flange 10. The inside sliding contact ring 27 has a regulation part 53 that faces outward in the axial direction, contacts the elastic member 30, and regulates the displacement of the elastic member 30 inward in the axial direction, where the inside sliding contact ring is formed into an annular shape and is externally fitted and fixed to the outer peripheral surface of the hub 3.SELECTED DRAWING: Figure 2
【課題】ハブに対するクリープや軸方向の相対変位を抑制でき、しかも製造コストを抑えられる摺接環を含むシール装置を備えたハブユニット軸受を提供する。【解決手段】シール装置5aの摺接環50は、外側摺接環26と内側摺接環27とを有する。外側摺接環26は、ハブ3の外周面に対して径方向外側に離隔して配置された円環状の摺接芯金29と、摺接芯金29の径方向内側の端部に固定され、かつ、ハブ3の外周面に外嵌された弾性材30とを有し、回転フランジ10の軸方向内側に隣接して配置されている。内側摺接環27は、軸方向外側を向き、弾性材30に当接して該弾性材30の軸方向内側への変位を規制する抑え部53を有し、円環状に構成され、かつ、ハブ3の外周面に外嵌固定されている。【選択図】図2
HUB UNIT BEARING
ハブユニット軸受
2022-10-13
Patent
Elektronische Ressource
Japanisch