| 摘要 |
PROBLEM TO BE SOLVED: To provide a hub unit bearing with a seal which improves sealing performance by a seal ring, makes a foreign-matter intrusion prevention effect further favorable, and has excellent durability.SOLUTION: A hub unit bearing with a seal comprises a side lip 19 which slidably contacts with an inside face of a rotating flange 12 over its whole periphery, and an eaves lip 26a which is arranged outside a radial direction rather than the side lip 19, and whose tip is made to approximately oppose an inside face of the rotating flange 12a. An annular protrusion 30 composed of a quick-drying sealant or an ultraviolet hardening resin is formed at the inside face of the rotating flange 12a, and the annular protrusion 30 is superimposed on the eaves lip 26a in the radial direction, and forms a labyrinth seal.SELECTED DRAWING: Figure 1 |
