公开(公告)号：US12044204B2

公开(公告)日：2024-07-23

申请号：US17731011

申请日：2022-04-27

Applicant: Roller Bearing Company of America, Inc.

Inventor： Ryan Meeks ,  Jarrod McGuire ,  Elizabeth Westbrook

IPC: F03D1/06 ,  F16C33/20 ,  B29L31/08 ,  F16C23/04

CPC classification number: F03D1/0675 ,  F16C33/201 ,  B29L2031/085 ,  F05B2230/60 ,  F05B2240/302 ,  F05B2280/6003 ,  F16C23/045 ,  F16C2208/32

Abstract: A joint bushing that accommodates the dithering and sliding in multi segment wind turbines. The joint bushing includes a self-lubricating liner that is a composite system incorporating woven Polytetrafluoroethylene fibers intermixed with structural reinforcement fibers in a composite matrix. The composite system provides sufficient life without requiring relubrication.

公开(公告)号：US20240218903A1

公开(公告)日：2024-07-04

申请号：US18608590

申请日：2024-03-18

Applicant: Roller Bearing Company of America, Inc.

Inventor： Jonathan Spiegel ,  Stephen Sorgenti ,  Jackson Sarneski-Hayes

IPC: F16C11/06 ,  F16C23/04

CPC classification number: F16C11/0614 ,  F16C11/0685 ,  F16C23/045 ,  F16C2202/04 ,  F16C2220/04

Abstract: A loader slot bearing includes a housing and a truncated ball. The housing has an interior area that is defined by an inner bearing surface which has a concave contour defining a circumference. A single slot extends axially partway into the inner bearing surface and has a slot arc section area extending axially inward. The slot arc section area has a first circumferential slot-end, a second circumferential slot-end, and a slot arc length measured between the first circumferential slot-end and the second circumferential slot-end. A ratio of the slot arc length to the circumference of the interior area is about 0.20 to 0.35. The truncated ball has a convex exterior surface. The truncated ball is positioned in the slot and rotated so that the truncated ball is rotatably retained by the inner bearing surface. The truncated ball is angularly misalignable relative to the annular housing.

公开(公告)号：US11933354B2

公开(公告)日：2024-03-19

申请号：US17676984

申请日：2022-02-22

Applicant: Roller Bearing Company of America, Inc.

Inventor： Jonathan Spiegel ,  Stephen Sorgenti ,  Jackson Sarneski-Hayes

IPC: F16C11/06 ,  F16C23/04

CPC classification number: F16C11/0614 ,  F16C11/0685 ,  F16C23/045 ,  F16C2202/04 ,  F16C2220/04

Abstract: A loader slot bearing includes a housing and a truncated ball. The housing has an interior area that is defined by an inner bearing surface which has a concave contour defining a circumference. A single slot extends axially partway into the inner bearing surface and has a slot arc section area extending axially inward. The slot arc section area has a first circumferential slot-end, a second circumferential slot-end, and a slot arc length measured between the first circumferential slot-end and the second circumferential slot-end. A ratio of the slot arc length to the circumference of the interior area is about 0.20 to 0.35. The truncated ball has a convex exterior surface. The truncated ball is positioned in the slot and rotated so that the truncated ball is rotatably retained by the inner bearing surface. The truncated ball is angularly misalignable relative to the annular housing.

公开(公告)号：US20230383789A1

公开(公告)日：2023-11-30

申请号：US18201349

申请日：2023-05-24

Applicant: Roller Bearing Company of America, Inc.

Inventor： Michael Decker ,  Frank Adams ,  Carl Hartman ,  Jack Kuzminsky ,  Ryan Meeks

IPC: F16C33/12

CPC classification number: F16C33/121 ,  F16C2202/04 ,  F16C2204/52 ,  F16C2204/42 ,  F16C2208/32 ,  F16C2326/43

Abstract: A wear resistant bearing system includes an inner member that has an internal core and a bearing surface which has a 50 Rockwell C scale hardness or greater. The inner member has a chemical composition that is uniform throughout the internal core and the bearings surface. The wear resistant bearing system includes an outer member that partially surrounds the inner member and includes a receiving surface that has liner system adhered thereto. The liner system includes a wear resistant matrix that has one or more reinforcing fiber systems and has one or more lubricative fibers system dispersed in the wear resistant matrix. The liner system has a wear surface that has portions of both the reinforcing fiber system and the lubricative fiber system. The wear surface is continuous.

公开(公告)号：US11697492B2

公开(公告)日：2023-07-11

申请号：US17225763

申请日：2021-04-08

Applicant: Roller Bearing Company of America, Inc.

Inventor： Mark Alger ,  Randall Kohuth ,  Dean Campbell

IPC: B64C27/51

CPC classification number: B64C27/51

Abstract: A piston assembly for a lead-lag damper for a blade mounted on a rotor of a helicopter includes a piston-rod that has an inside surface and a piston-head that extends radially outward therefrom. The piston-rod has two ports extending therethrough on opposing sides of the piston-head. A sleeve is positioned in the piston-rod and has two annular passages that communicate with the respective ports. A valve spool is disposed in and slidingly engages the sleeve. The valve spool has a channel which is in variable fluid communication with two passages. The piston assembly includes a biasing member that biases the valve spool axially away from it. The channel has an axial width configured to variably regulate fluid flow between the two ports to control dampening of the piston-rod in response to centrifugal forces applied to the valve spool.

公开(公告)号：US11686344B2

公开(公告)日：2023-06-27

申请号：US17117923

申请日：2020-12-10

Applicant: Roller Bearing Company of America, Inc.

Inventor： Christopher J. McDade ,  Jeffrey Post ,  Anne Marie Stutz

IPC: F16C23/04 ,  F16C33/10 ,  F16C33/12 ,  F16C17/02 ,  F16C33/14

CPC classification number: F16C23/045 ,  F16C17/02 ,  F16C33/1095 ,  F16C33/12 ,  F16C33/14 ,  F16C2220/24 ,  F16C2226/40

Abstract: A light-weight bearing component for sliding or rolling engagement with a mating surface includes a core lattice structure that has a plurality of support members interconnected with one another and a plurality of spaces located between the support members. The bearing component includes a cover that has an interior surface and an exterior surface. The cover extends over a portion of or all of the core lattice structure.

公开(公告)号：US20230048155A1

公开(公告)日：2023-02-16

申请号：US17881953

申请日：2022-08-05

Applicant: Roller Bearing Company of America, Inc.

Inventor： Jarrod McGuire ,  Ryan Meeks ,  Brad Haywood ,  Yishen Gu

IPC: F16C33/10 ,  F16C33/08 ,  F16C33/12

Abstract: A linear guide mechanism includes a housing having an inside housing surface that defines a bore extending through the housing coaxial with a longitudinal axis. A shaft is disposed at least partially in the bore and is reciprocatably and linearly moveable in the bore along the longitudinal axis. The shaft has an exterior shaft surface. A self-lubricating liner is disposed in the bore between the inside housing surface and the exterior shaft surface. The self-lubricating liner has an inside liner surface that is in sliding engagement with the exterior shaft surface of the shaft. The self-lubricating liner has an exterior liner surface.

公开(公告)号：US20220333505A1

公开(公告)日：2022-10-20

申请号：US17854088

申请日：2022-06-30

Applicant: Roller Bearing Company of America, Inc.

Inventor： Kelvin M. Smith ,  Eric Smooke

IPC: F01L1/14 ,  F16C33/34 ,  F01L1/18 ,  F01L1/24 ,  F16C13/00 ,  F01L1/047 ,  F16C19/26

Abstract: A roller hydraulic valve lifter includes a body having a longitudinal central axis and an interior area defined by an inside surface which has a pair of flat surfaces opposite one another and connected by a pair of walls. A first bore, essentially perpendicular to the longitudinal axis, extends through the flat surfaces. A bearing is disposed partially in the interior area. The bearing includes an outer ring having substantially cylindrical exterior and interior bearing surfaces. A shaft extends through the first bore and the outer ring and between the pair of flat surfaces. A plurality of needle rollers is disposed between and rollingly engage the shaft and the cylindrical inner bearing surface. The shaft and the plurality of needle rollers are manufactured from an AISI 52100 alloy steel that is carbo-nitrided. The shaft and the plurality of needle rollers have a surface hardness of a minimum of HRc 65.

公开(公告)号：US20220252043A1

公开(公告)日：2022-08-11

申请号：US17731011

申请日：2022-04-27

Applicant: Roller Bearing Company of America, Inc.

Inventor： Ryan Meeks ,  Jarrod McGuire ,  Elizabeth Westbrok

IPC: F03D1/06 ,  F16C33/20

Abstract: A joint bushing that accommodates the dithering and sliding in multi segment wind turbines. The joint bushing includes a self-lubricating liner that is a composite system incorporating woven Polytetrafluoroethylene fibers intermixed with structural reinforcement fibers in a composite matrix. The composite system provides sufficient life without requiring relubrication.

公开(公告)号：US11300147B2

公开(公告)日：2022-04-12

申请号：US16456654

申请日：2019-06-28

Applicant: Roller Bearing Company of America, Inc.

Inventor： Michael J. Hartnett ,  Curtis M. Swartley ,  Charles Houle ,  Phil Smith ,  Giovanni C. Albini

IPC: F16B19/02 ,  F16B4/00

Abstract: An expandable sleeve for an interference fastener has a hollow elongate stem extending axially between an insertion end and a head portion. The elongate stem has an inside surface and an outside surface. A portion of the stem has a fluted shape and/or has a cylindrical shape with a conical portion.