Hub bearing unit with flow guide type sealing structure

The utility model relates to a hub bearing unit with a flow guide type sealing structure, which mainly solves the problem that sewage cannot be well discharged from the hub bearing unit in the running process of a vehicle at present. A dustproof cover (5) is arranged on the shaft neck, the sealing framework is matched with the dustproof cover in a sealing mode, the dustproof cover comprises a ring body (51), a plurality of flow guiding protrusions (511) used for guiding flow are arranged on the axial end face of the ring body, an opening (31) is formed between the axial direction of the outer ring and the flange plate, the flow guiding protrusions and the opening are oppositely arranged, and the sealing framework is arranged on the sealing framework. And the flow guide bulges are gradually heightened from inside to outside. The hub bearing unit with the flow guide type sealing structure is provided with the flow guide protrusions, the flow guide protrusions gradually rise from inside to outside, part of sewag