Patent ID: 11897283
Assignee: AKTIEBOLAGET SKF
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A sealing device for a bearing unit comprising a radially outer ring and at least one radially inner ring, the sealing device, comprising:
a stationary part, comprising:
a first metal screen comprising:
an annular shaped portion; and
a cylindrical portion, wherein the cylindrical portion is radially external with respect to the annular shaped portion and configured to extend in an axially inward direction toward a center of the bearing unit;

an elastomer coating comprising:
at least one annular shaped elastomeric portion;
a cylindrical elastomeric portion;
a contacting lip further defined by the elastomeric coating radially internally with respect to the cylindrical elastomeric portion and axially external with respect to the annular shaped portion;
a first non-contacting lip extending radially and internally from the cylindrical elastomeric portion,

wherein the elastomer coating is co-moulded on the first screen in a radially external and axially external position with respect to the first screen; and

a rotatable part, comprising:
a second metal screen comprising a radially extending portion and
a radially outer wing,

wherein the radially outer wing and the first non-contacting lip define a first radial labyrinth seal,
the contacting lip is configured to make sliding contact with the second metal screen,
wherein a radially outer surface of the radially outer wing is configured to align radially with an outer radial surface of the radially outer ring.