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Rolling bearings with inclined running surfaces

A rolling bearing and working face technology, applied in the field of rolling bearings, can solve the problems of less needle roller support and insufficient lubricant supply, and achieve the effect of saving size, cost and size.

Active Publication Date: 2019-05-10
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a disadvantage of this prior art is that the needle rollers have only little support in the heavily tapered region of the bearing bearing point.
In addition, an area of ​​the needle roller is permanently covered by the bearing bearing point, so that in this case the covered area can only be insufficiently supplied with lubricant

Method used

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  • Rolling bearings with inclined running surfaces
  • Rolling bearings with inclined running surfaces
  • Rolling bearings with inclined running surfaces

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Embodiment Construction

[0024] figure 1 A schematic plan view of the rolling body 1 is shown, but only the inner part 2 therein and the rolling body 4 , which are mounted in the cage 6 . An outer part (not shown) closes the rolling bearing 1 or the rolling bodies 4 radially on the outside. Also in figure 1 As shown in FIG. 1 , the inner part 2 and the not-shown outer part rotate about a common axis of rotation A, whereby the rolling bodies 4 move in a direction R on the inner part 2 . Furthermore, a running surface 8 is formed on the inner part 2 , which contacts the rolling body 4 along a straight line 10 .

[0025] Since the rolling elements 4 are configured in such a way that they contact the running surface 8 of the inner part 2 along a straight line 10 (the so-called contact line), such a rolling bearing 1 is referred to as a rolling bearing with line contact. The rolling elements themselves can have a cylindrical shape, as in the illustrated needle bearing, but it is also possible to use con...

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Abstract

A rolling-element bearing with line contact includes bearing inner and outer parts having running surfaces, and at least one rolling element is disposed between and makes line contact with the bearing inner and outer parts. A width of the outer running surface and / or a width of the inner running surface is narrower at least in a first circumferential partial region than a length of the rolling-element, and in the first partial region the bearing outer part running surface and / or the bearing inner part running surface extends obliquely to a rolling direction of the at least one rolling element.

Description

technical field [0001] The invention relates to a rolling bearing having a line contact with a bearing outer part and a bearing inner part, which each form a running surface for at least one rolling body arranged between the bearing outer part and the bearing inner part , where the rolling elements contact the working surface along a straight line when rolling. Background technique [0002] All rolling bearings that are not ball bearings are often referred to as rolling bearings with line contact. Examples of this category are cylindrical roller bearings and tapered roller bearings, as well as radial needle roller bearings or toroidal bearings. However, a disadvantage in rolling bearings with line contact is that the lubricant is often not distributed over the entire length of the rolling elements, so too little lubricant is often present especially in the inner region of the contact line. [0003] From prior art EP 1 775 484 a radial needle roller bearing is known, the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/46F16C33/58F16C33/66
CPCF16C33/585F16C19/26F16C19/46F16C33/6681F16C2300/02F16F15/267
Inventor R.鲍赫E.古乔恩N.休恩
Owner AB SKF
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