| 摘要 |
The seal unit (1) for two rings (2,3) of a rolling bearing (4) includes a shield basically rigid (6) integral with the rotating ring (3) of the bearing (4) and provided with an annular wet-seal component (7) that works together with a seal surface (15) integral with the fixed ring (2) and a magnetic ring (30) that works together with an external detector measuring the relative rotation speed of the two rings (2, 3); the whole magnetic ring (30) is housed into an annular blind cavity (45) bounded radially by a cylindrical portion of the rigid shield (6) and, at the other side, by a support element, basically cylindrical (40) made of elastomeric material and basically coaxial to the cylindrical portion (8) and projecting axially from a radial flange (9) of the shield (6); the magnetic ring (30) is axially and angularly locked into the cavity (45) against a back wall defined by the radial flange (9) of the shield (6) by means of co-moulding on the same and on the shield of the elastomeric support element (40) <IMAGE> |
