US 12,241,505 B2
Support assembly for food applications
Andrea A. Bertolini, Carrara (IT); Fausto Baracca, Massa (IT); and Fabio Cavacece, Rome (IT)
Assigned to AKTIEBOLAGET SKF, (SE)
Filed by AKTIEBOLAGET SKF, Gotenborg (SE)
Filed on Feb. 10, 2023, as Appl. No. 18/167,374.
Claims priority of application No. 102022000003104 (IT), filed on Feb. 21, 2022.
Prior Publication US 2023/0265887 A1, Aug. 24, 2023
Int. Cl. F16C 33/78 (2006.01); F16C 19/06 (2006.01)
CPC F16C 33/7823 (2013.01) [F16C 19/06 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A support assembly for moving shafts, comprising:
a bearing unit comprising a radially outer ring and a radially inner ring configured to receive the moving shaft;
a casing for the bearing unit;
a cover for fluid sealing an opening of the casing;
a first sealing device positioned axially on an opposite side of the bearing unit from the cover, the first sealing device comprising a first shield and a first coating made of vulcanized rubber having a first, axially outer, sealing lip and a second, axially inner, sealing lip;
wherein, the radially inner ring comprises a tubular axial prolongation extending in an axially outward direction from the radially outer ring to form an undercut delimited by two surfaces and engaged by the second sealing lip; the second sealing lip is positioned in sliding contact with a first surface of the two surfaces;
wherein the second sealing lip comprises a main lip and a secondary lip, which is carried by the main lip, the secondary lip is positioned in sliding contact with the first surface of the two surfaces, and forms an acute angle (a) with the main lip.