Patent ID: 6497514
Filing Date: 2002-12-24
Classification: B60B,F16C,F16J

Abstract:
Sealing device for a flanged bearing in which flanged ends (13) of an outer race (11) of a bearing have, pressed on internal surfaces, first metallic rings (14) of a sealing device (15); each first metallic ring (14) incorporating a first rubber element (16) which is suitable for forming a static seal on the outer race (11) of the bearing; the first rubber element (16) extending towards an inner race (10) of the bearing (12) and then bending back towards an outside of the bearing with an appendix (17), which forms two seals (18 and 19) on an internal surface of a second metallic ring (20); the second metallic ring (20) pressed onto an external surface of the inner race (10) of the bearing; the device comprising a second rubber element (21) that is applied to the second metallic ring (20) in correspondence to a free end (22) of the second metallic ring (20) which is axially turned towards an inside of the device; the second rubber element (21) including at least first and second lips (24 and 25), the first lip forming a dynamic seal between the two races (10 and 11) of the bearing together with the two seals (18 and 19) of the first metallic ring (14), while the second lip (25) forms a static seal of the second metallic ring (20) against the external surface (23) of the inner race (10) of the bearing, the second lip (25) being positioned adjacent to a mouth of a channel (26) which is defined between the said external surface (23) of the inner race (10) of the bearing and surfaces of the first and second metallic rings (14 and 20) which face each other; wherein, in addition to the second lip (25), there is a third lip (28) inside the second lip (25).