US 11,852,194 B2
Solenoid low friction bearing liner
David A. Rich, Nashua, NH (US); and Nicole M. Dirando, Waltham, MA (US)
Assigned to SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, Solon, OH (US)
Filed by SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, Solon, OH (US)
Filed on Dec. 8, 2021, as Appl. No. 17/643,199.
Claims priority of provisional application 63/124,362, filed on Dec. 11, 2020.
Prior Publication US 2022/0186782 A1, Jun. 16, 2022
Int. Cl. F16C 17/02 (2006.01); F16C 33/20 (2006.01); H01F 7/16 (2006.01)
CPC F16C 33/201 (2013.01) [F16C 17/02 (2013.01); F16C 33/206 (2013.01); H01F 7/1607 (2013.01); F16C 2202/02 (2013.01); F16C 2202/50 (2013.01); F16C 2208/02 (2013.01); F16C 2208/58 (2013.01); F16C 2240/60 (2013.01); F16C 2380/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A low friction bearing liner for a solenoid, the low friction bearing liner comprising a first low friction layer,
wherein the first low friction layer comprises a first fluoropolymer matrix component and a first thermoplastic filler component distributed throughout the first fluoropolymer matrix component,
wherein the content of the first fluoropolymer matrix component is at least about 80 wt. % and not greater than about 99 wt. % for a total weight of the first low friction layer,
wherein the content of the first thermoplastic filler component is at least about 1 wt. % and not greater than about 20 wt. % for a total weight of the first low friction layer, and
wherein the first thermoplastic filler comprises a polyimide (PI), a polyamide (PA), a polyamideimide (PAI), a polybenzimidazole (PBI), a polyether ether ketone (PEEK), an aromatic polyester, a polyphenylene sulfide (PPS), synthetic fibers, or any combination thereof.