US 12,276,305 B2
Bearing seal and its applications
Meng Zhang, Datong (CN); Dapeng Li, Shenyang (CN); Yangguang Zhao, Xinchang county (CN); and He Zhu, Shanghai (CN)
Assigned to Aktiebolaget SKF, Gothenburg (SE)
Filed by Aktiebolaget SKF, Gothenburg (SE)
Filed on Nov. 21, 2022, as Appl. No. 17/991,372.
Claims priority of application No. 202111586981.9 (CN), filed on Dec. 23, 2021.
Prior Publication US 2023/0204072 A1, Jun. 29, 2023
Int. Cl. F16C 33/76 (2006.01); F16C 19/06 (2006.01); F16C 33/78 (2006.01)
CPC F16C 33/762 (2013.01) [F16C 19/06 (2013.01); F16C 33/7883 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A bearing seal comprising:
a first flinger configured to be secured to a first shoulder of a first bearing ring on an axial side of a bearing, the first flinger comprising a first axial portion and a first radial portion, and
a second flinger configured to be secured to a second shoulder of a second bearing ring on the axial side of the bearing, the second flinger comprising a second axial portion and a second radial portion, and
a first sealing body formed on the first flinger comprising a first plurality of lips, one lip of the first plurality of lips forming a contact seal with the second flinger,
a second sealing body formed on the second flinger comprising a second plurality of lips, one lip of the second plurality of lips forming a contact seal with the first flinger and another lip of the second plurality of lips forming a non-contact seal with the first flinger,
wherein the first radial portion comprising a first segment and a second segment, the first segment being axially closer to the second radial portion than the second segment, and
wherein the first segment of the first radial portion is located within an axial distance W of the second radial portion, and
wherein a total radial size L of the bearing seal is measured between the first axial portion of the first flinger and the second axial portion of the second flinger.
 
6. A rolling bearing, provided on an axial side thereof with a bearing seal comprising:
a first flinger secured to a first shoulder of an inner ring on the axial side of the bearing, the first flinger comprising a first axial portion and a first radial portion, and
a second flinger secured to a second shoulder of an outer ring on the axial side of the bearing, the second flinger comprising a second axial portion and a second radial portion, and
a first sealing body formed on the first flinger comprising a first plurality of lips, one lip of the first plurality of lips forming a contact seal with the second flinger,
a second sealing body formed on the second flinger comprising a second plurality of lips, one lip of the second plurality of lips forming a contact seal with the first flinger and another lip of the second plurality of lips forming a non-contact seal with the first flinger,
wherein the first radial portion comprising a first segment and a second segment, the first segment being axially closer to the second radial portion than the second segment.