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Stacked thrust tapered dissimilar series roller bearing

A thrust bearing, tapered technology, used in the field of thrust bearings, can solve the problem of expensive custom modification, not ready to change the design, etc.

Active Publication Date: 2021-11-05
THE TIMKEN CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing rigs cannot accommodate such an increase in bearings, and furthermore, manufacturers of new rigs are not prepared to change designs to accommodate larger bearings
Although custom modifications can be made, these custom modifications will be expensive

Method used

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  • Stacked thrust tapered dissimilar series roller bearing
  • Stacked thrust tapered dissimilar series roller bearing

Examples

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Embodiment Construction

[0012] Before any embodiments of the invention are described in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or shown in the following drawings. The invention is capable of other embodiments and of being practiced or carried out in various ways.

[0013] figure 1 with figure 2 A stacked thrust tapered dissimilar series roller bearing 10 according to the invention is shown. The illustrated bearing 10 may be used in top drives for drilling rigs or other applications. Such as figure 2 As shown in , a bearing 10 is supported in a housing 14 to support thrust loading on a rotating shaft 18 . Shaft 18 includes a shoulder 22 that engages an axial end surface of bearing 10, as will be discussed further below.

[0014] Bearing 10 includes a first axial end washer 26 , which in the illustrated embodiment is the top or upper axial end washe...

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PUM

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Abstract

A thrust bearing includes a first axial end washer defining thereon a first race, a second axial end washer defining thereon a second race, a one-piece, radially -inner washer having a first axial end engaged with the first axial end washer and having a second axial end defining thereon a third race, and a one-piece, radially-outer washer having a first axial end defining thereon a fourth race and having a second axial end engaged with the second axial end washer. A first set of tapered rolling elements is supported between the first race and the fourth race and a second set of tapered rolling elements is supported between the second race and the third race. The first and second sets of tapered rolling elements are both axially and radially offset from one another.

Description

[0001] related application [0002] This application claims the benefit of U.S. Provisional Patent Application No. 62 / 950,458, filed December 19, 2019, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to thrust bearings, and more particularly, to thrust bearings used in top drive applications for the drilling industry. Background technique [0004] Top drive applications represent the technical core of drilling rigs, where thrust bearings are the machine elements that support the weight of the length of tubing within the well and the main drilling effort. In most cases, tapered roller thrust bearings such as Thrust Tapered Heavy Duty (TTHD) and Thrust Tapered Heavy Duty Flat Race (TTHDFL) bearings are used in this critical location, which experiences high loads and significant deformation. [0005] The current challenge involves the necessary increase in top drive capacity. Oil and gas are being extra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C19/32F16C33/30F16C33/34F16C33/46
CPCF16C19/32F16C33/46F16C33/34F16C33/30F16C2352/00F16C19/30F16C19/54F16C19/305F16C19/56F16C33/583
Inventor F·M·康斯坦丁D·F·斯坦丘
Owner THE TIMKEN CO