公开(公告)号：US12203505B2

公开(公告)日：2025-01-21

申请号：US17448784

申请日：2021-09-24

Applicant: Liebherr-Components Biberach GmbH

Inventor： Andreas Palmer ,  Robert Zell ,  Markus Ruf ,  Michael Fuchs

IPC: F16C33/58 ,  F03D80/70 ,  F16C19/49 ,  F16C33/60

Abstract: The invention relates to a rolling bearing, in particular a center-free large rolling bearing, comprising two concentric races, of which one race has a groove open toward the other race and the other race has a lug ring, which engages in said groove, the lug ring being supported on the groove by means of at least two thrust bearings and at least one radial bearing, said axial bearings being designed as roller bearings, all the radial bearings being designed as ball bearings.

公开(公告)号：US20220234869A1

公开(公告)日：2022-07-28

申请号：US17613897

申请日：2020-05-25

Applicant: Liebherr-Components Biberach GmbH

Inventor： Robert Zell ,  Stefan Malik

IPC: B66C23/84 ,  F16C19/26 ,  F16C19/36 ,  F16C19/38 ,  F16C19/50 ,  F16C33/58

Abstract: A rolling bearing having concentric bearing rings supported on one another rotatably with respect to each other by means of at least one row of rolling elements and have bearing races for the rolling elements of the at least one row of rolling elements. The invention further relates to a material transfer- or construction machine, such as a crane or cable excavator, having such a rolling bearing. Providing different bearing race corrections in different angular sectors of the bearing rings and/or providing the bearing race correction only in a fraction of the circumference of the bearing rings is advantageous over the conventional use of a bearing race correction that is constant over the circumference. A bearing race correction that is limited to one sector or that is different from sector to sector, or that is not constant over the circumference, enables the bearing rings to adapt to expected loads.

公开(公告)号：US11293485B2

公开(公告)日：2022-04-05

申请号：US16923958

申请日：2020-07-08

Applicant: Liebherr-Components Biberach GmbH

Inventor： Robert Zell ,  Markus Ruf ,  Michael Fuchs

IPC: F16C19/38 ,  F16C19/50 ,  F16C33/54 ,  F16C33/58 ,  F16C33/60

Abstract: A multi-row rolling bearing having an inner ring and an outer ring and at least two axial rolling bearing rows for supporting axial forces between the inner and outer ring, wherein the two axial rolling bearing rows are seated on opposite axial sides of a radially projecting annular lug which engages in an annular groove and which is supported by means of the axial rolling bearing rows against the annular groove. According to the invention, at least one of the axial rolling bearing rows is formed as an angular-contact roller bearing with an angle of inclination of greater than 0° to at most 45°.

公开(公告)号：US12017893B2

公开(公告)日：2024-06-25

申请号：US17613897

申请日：2020-05-25

Applicant: Liebherr-Components Biberach GmbH

Inventor： Robert Zell ,  Stefan Malik

IPC: F16C33/58 ,  B66C23/84 ,  F16C19/26 ,  F16C19/36 ,  F16C19/38 ,  F16C19/50

CPC classification number: B66C23/84 ,  F16C19/26 ,  F16C19/364 ,  F16C19/381 ,  F16C19/505 ,  F16C33/585 ,  F16C33/586 ,  F16C2300/14 ,  F16C2350/26

Abstract: A rolling bearing having concentric bearing rings supported on one another rotatably with respect to each other by means of at least one row of rolling elements and have bearing races for the rolling elements of the at least one row of rolling elements. The invention further relates to a material transfer- or construction machine, such as a crane or cable excavator, having such a rolling bearing. Providing different bearing race corrections in different angular sectors of the bearing rings and/or providing the bearing race correction only in a fraction of the circumference of the bearing rings is advantageous over the conventional use of a bearing race correction that is constant over the circumference. A bearing race correction that is limited to one sector or that is different from sector to sector, or that is not constant over the circumference, enables the bearing rings to adapt to expected loads.

公开(公告)号：US11333195B2

公开(公告)日：2022-05-17

申请号：US17059449

申请日：2019-05-24

Applicant: Liebherr-Components Biberach GmbH

Inventor： Thomas Altmayer ,  Markus Ruf ,  Andreas Palmer ,  Robert Zell

IPC: F16C19/50

Abstract: An open-centered large rolling bearing having two concentric bearing rings, which are supported against one another in the axial direction of the rolling bearing by means of at least two axial bearings, which are arranged on opposite end faces of a bearing ring. In the radial direction, the bearing rings are supported against one another by at least three radial bearings, which are arranged on inner and outer circumferential sides of a bearing ring.

公开(公告)号：US20210156422A1

公开(公告)日：2021-05-27

申请号：US17059449

申请日：2019-05-24

Applicant: Liebherr-Components Biberach GmbH

Inventor： Thomas Altmayer ,  Markus Ruf ,  Andreas Palmer ,  Robert Zell

IPC: F16C19/54 ,  F16C19/56 ,  F16C17/04

Abstract: An open-centered large rolling bearing having two concentric bearing rings, which are supported against one another in the axial direction of the rolling bearing by means of at least two axial bearings, which are arranged on opposite end faces of a bearing ring. In the radial direction, the bearing rings are supported against one another by at least three radial bearings, which are arranged on inner and outer circumferential sides of a bearing ring.