US 12,674,490 B2 · Support assembly

Abstract

A support assembly includes a casing having an internal assembly seat and a cylindrical seat formed on an axially inner side of the internal assembly seat, a bearing unit mounted within the internal assembly seat of the casing and including a stationary radially outer ring inserted in the assembly seat of the casing and comprising an axially internal annular surface and a rotating radially inner ring. A sealing device interposed between the two rings includes a first shield interference fitted onto a radially outer surface of the radially inner ring and a second shield arranged on an axially inner side of the first shield and interference fit onto the cylindrical seat of the casing. A spacer is positioned axially between the radially outer ring and the second shield, and may be formed separately from or integrally with the second shield.

Claims23

Dependent claims

A support assembly comprising:

a bearing unit having an axis of rotation;
a casing having an axially inner end and an axially outer end spaced apart along the axis of rotation, the casing comprising an internal assembly seat and a cylindrical seat formed on an axially inner side of the internal assembly seat, the bearing unit being mounted within the internal assembly seat of the casing, the bearing unit comprising:
a stationary radially outer ring inserted in the assembly seat of the casing and comprising an axially inner annular surface;
and
a rotating radially inner ring;
a sealing device comprising:
a first shield interference fitted onto a radially outer surface of the radially inner ring;
and
a second shield arranged on an axially inner side of the first shield and interference fit onto the cylindrical seat of the casing;
and
a spacer positioned axially between the radially outer ring and the second shield, the spacer being slidable axially inward along the casing in response to a misalignment of the bearing unit within the assembly seat of the casing.

8 more elements

A support assembly comprising:

a bearing unit having an axis of rotation;
a casing having an axially inner end and an axially outer end spaced apart along the axis of rotation, the casing comprising an internal assembly seat and a cylindrical seat formed on an axially inner side of the internal assembly seat, the bearing unit being mounted within the internal assembly seat of the casing, the bearing unit comprising:
a stationary radially outer ring inserted in the assembly seat of the casing and comprising an axially inner annular surface;
and
a rotating radially inner ring;
and
a sealing device comprising:
a first shield interference fitted onto a radially outer surface of the radially inner ring;
and
a second shield arranged on an axially inner side of the first shield and interference fit onto the cylindrical seat of the casing, the second shield comprising:
a cylindrical portion mounted onto the cylindrical seat of the casing;
a shaped flange portion extending radially inward from the cylindrical portion;
and
a spacer formed integrally with an axially outer end of the cylindrical portion and a radially outer end of the shaped flange portion, the spacer comprising:
a corner;
and
a radially outer edge extending from the corner to a radially inner end, wherein an axial thickness of the radially outer edge increases in a radially outward direction from the radially inner end to the corner.

14 more elements

Dependencies are inferred from the claim text.

Support assembly

Life of this patent

Support assembly

Life of this patent

Abstract

Claims23