IP Library Granted Patent US 10,851,838
Granted Patent B2
US 10,851,838 · App. 14/607,850 · Granted Dec 1, 2020

Liner-as-seal bearings

Inventors: Tyson Lawrence (Cambridge, MA); Bryan Andrew Smith (Boston, MA)
Assignee: TRITON SYSTEMS, INC.
F16C33/74F16C11/068F16C23/045F16C27/063F16C33/203F16C27/02F16C2226/40
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Quick Facts
Patent No.
US 10,851,838
App. No.
14/607,850
Granted
Dec 1, 2020
Kind
B2
Abstract

Disclosed are bearing assemblies including a compliant layer within a mounting socket for reducing wear of the bearing.

Claims (25)

1. A bearing assembly comprising:

a housing, having a body axially spaced sides, and an axially extending bore forming a mounting surface, extending between the axial spaced sides;

a bearing housed within the axially extending bore;

a liner disposed on a circumferential surface of the mounting surface and positioned to contact the bearing; and

a compliant layer having a compressive strength measured as a uniaxial compressive force of about 500 psi to about 35,000 psi disposed between the liner and the mounting surface.

2. The bearing assembly of claim 1 , the liner comprises a low friction or self-lubricating material.

3. The bearing assembly of claim 1 , wherein compliant layer comprises thermoplastic or elastomeric polymers, composite materials, metals, woven and non-woven materials, fabrics, plastic wool, steel wools, steel spring, and the like, fiber reinforced materials, carbon fiber reinforced polymers or metal composites, and combinations thereof.

4. The bearing assembly of claim 1 , wherein the bearing comprises a spherical bearing, ball, or shaft.

5. The bearing assembly of claim 1 , wherein the compliant layer is at least partially compressed.

6. The bearing assembly of claim 1 , wherein the compliant layer has a shear strength of about 500 psi to about 30,000 psi.

7. The bearing assembly of claim 1 , wherein the compliant layer has a response time necessary for the compliant layer when compressed to fully deform in about 0.001 seconds to 1 seconds.

8. The bearing assembly of claim 1 , wherein the compliant layer comprises a material selected from the group consisting of polyisoprene, cis-1,4-polyisoprene natural rubber (NR), trans-1,4-polyisoprene gutta-percha, synthetic polyisoprene (IR), polybutadiene (BR), chloroprene rubber (CR), polychloroprene, Neoprene, Baypren, butyl rubber, copolymers of isobutylene and isoprene (IIR), halogenated butyl rubbers, chloro butyl rubber (CIIR), bromo butyl rubber (BIIR), styrene-butadiene rubber (SBR), nitrile rubber, copolymer of butadiene and acrylonitrile (NBR), hydrogenated nitrile rubbers (HNBR), saturated rubbers, ethylene propylene rubber (EPM), ethylene propylene diene rubber (EPDM), epichlorohydrin rubber (ECO), polyacrylic rubber (ACM, ABR), silicone rubber (SI, Q, VMQ), fluorosilicone rubber (FVMQ), fluoroelastomers (FKM, and FEPM), perfluoroelastomers (FFKM), polyether block amides (PEBA), chlorosulfonated polyethylene (CSM), ethylene-vinyl acetate (EVA), and co-polymers and combinations thereof.

9. The bearing assembly of claim 1 , wherein the compliant layer comprises two or more different materials bonded together.

10. The bearing assembly of claim 1 , wherein the compliant layer is bonded to a socket.

11. The bearing assembly of claim 1 , wherein the compliant layer is attached to the liner by adhesives or chemical bonding.

12. The bearing assembly of claim 1 , further comprising bordering edges along an outer edge of the axially extending bore.

13. A bearing assembly comprising:

a housing, having a body axially spaced sides, and an axially extending bore forming a mounting surface, extending between the axial spaced sides;

a bearing housed within the axially extending bore;

a compliant layer comprising one or more o-rings contacting the mounting surface; and

a liner disposed on the mounting surface and positioned to contact the bearing wherein the liner is attached to the mounting surface on either side of at least one of the o-ring.

14. The bearing assembly of claim 13 , further comprising grooves in the axially extending bore sized to retain at least one of the one or more o-rings.

15. The bearing assembly of claim 13 , wherein at least one of the one or more o-rings is positioned near an outer edge of the axially extending bore.

16. The bearing assembly of claim 13 , further comprising a relief groove or hole in the bearing positioned to allow air flow between the liner and the bearing.

17. The bearing assembly of claim 13 , further comprising bordering edges along an outer edge of the axially extending bore.

Assignments (3)
CONFIRMATORY LICENSE Recorded Jun 22, 2022
From: TRITON SYSTEMS INC
To: DEPARTMENT OF THE NAVY
Reel/Frame 060277/0051 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2020
From: LAWRENCE, TYSON; SMITH, BRYAN ANDREW
To: TRITON SYSTEMS, INC.
Reel/Frame 054169/0383 →
CONFIRMATORY LICENSE Recorded Nov 13, 2017
From: TRITON SYSTEMS
To: DEPARTMENT OF THE NAVY
Reel/Frame 044103/0968 →
Continuity (2)
Provisional Application 61932355 · Jan 28, 2014
Related Publication 20150211579A1 · Jul 30, 2015