US 11,719,281 B2
Sealing assembly for rolling-element bearing, rolling-element bearing and dustproof assembly
Xianbing Gu, Xinchang (CN); Louis J Lenick, Mount Prospect, IL (US); Xingzheng Li, Xinchang (CN); and Changsheng Li, Xinchang (CN)
Assigned to PEER BEARING COMPANY, Waukegan, IL (US); and AKTIEBOLAGET SKF, Gothenburg (SE)
Filed by AKTIEBOLAGET SKF, Gothenburg (SE); and PEER Bearing Company, Waukegan, IL (US)
Filed on Nov. 16, 2021, as Appl. No. 17/527,384.
Claims priority of application No. 202011502218.9 (CN), filed on Dec. 18, 2020.
Prior Publication US 2022/0196074 A1, Jun. 23, 2022
Int. Cl. F16C 33/78 (2006.01); F16C 33/72 (2006.01); F16C 19/06 (2006.01); F16C 23/08 (2006.01)
CPC F16C 33/7866 (2013.01) [F16C 19/06 (2013.01); F16C 23/084 (2013.01); F16C 33/723 (2013.01); F16C 33/7823 (2013.01); F16C 33/7853 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A sealing assembly for a rolling-element bearing, the rolling-element bearing comprising a first ring, a second ring and rolling elements held between the first ring and the second ring by a cage, the sealing assembly being arranged between the first ring and the second ring, the sealing assembly comprising:
a first seal element having a first support member mounted on and rotationally fixed relative to the first ring, a first seal body extending from the first support member toward the second ring and having an oblique side surface, and at least one first seal lip extending from the first seal body to the second ring to form a first seal;
a second seal element having a second support portion mounted on and rotationally fixed to the second ring, the second support portion including an angled portion substantially parallel to the oblique side surface and extending axially over the oblique side surface, and at least one second seal lip extending from the angled portion to the oblique side surface to form a second seal, and
a buffer member extending from the first seal element toward the second seal element or from the second seal element toward the first seal element, the buffer member comprising a first annular rib spaced from a second annular rib by a circumferential channel.
 
15. A sealing assembly for a rolling-element bearing, the rolling-element bearing comprising a first ring, a second ring and rolling elements held between the first ring and the second ring by a cage, the sealing assembly being arranged between the first ring and the second ring, the sealing assembly comprising:
a first seal element having a first support member mounted on and rotationally fixed relative to the first ring and a first seal body extending from the first support member toward the second ring, the first seal body having an oblique side surface and at least one first seal lip extending from the first seal body to the second ring to form a first seal;
a second seal element having a second support portion mounted on and rotationally fixed to the second ring and at least one second seal lip extending from the second support portion to the oblique side surface to form a second seal, and
a buffer member extending from the second seal element toward the first seal element, the buffer member comprising a first annular rib radially spaced from a second annular rib by an axially facing circumferential channel
wherein the first seal body includes a side facing the second support portion, and
wherein the first and second ribs are located on the second support portion and extend toward the side of the first seal body that faces the second support portion.