Search

US-12624726-B2 - Bearing holding device and rolling bearing apparatus with a bearing holding device

US12624726B2US 12624726 B2US12624726 B2US 12624726B2US-12624726-B2

Abstract

A bearing holding device with an annular inner region and a flange region, extending at least approximately outwards in the radial direction, with recesses, which flange region is designed in one piece with the inner region and is narrower in the axial direction than the annular inner region, is described. The flange region is, in the circumferential region, surrounded at least in certain regions by a connection region, which is formed in one piece with the flange region and via which the inner region and the flange region can be firmly connected to a housing. Furthermore, a rolling bearing apparatus with the bearing holding device is proposed.

Inventors

  • Tomasz Regel

Assignees

  • ROLLS-ROYCE DEUTSCHLAND LTD & CO KG

Dates

Publication Date
20260512
Application Date
20240521
Priority Date
20230602

Claims (13)

  1. 1 . A bearing holding device comprising: an annular inner region and a flange region, extending outwardly in a radial direction, with recesses, the flange region being configured in one piece with the annular inner region and being narrower in an axial direction than the annular inner region, wherein the flange region is, in a circumferential direction, surrounded at least in certain regions by a connection region, which is formed in one piece with the flange region and via which the annular inner region and the flange region are connectable to a housing, wherein the flange region includes a plurality of spring elements spaced apart from one another on the circumferential direction, with each of the spring elements having a closed circular cross-section surrounding an open recess, the spring elements extending in a radial direction between the annular inner region and the connection region, each of the spring elements being connected at an inner radial portion to the annular inner region and at an outer radial portion to the connection region, wherein the flange region includes further recesses in the circumferential direction between at least some of the spring elements.
  2. 2 . The bearing holding device according to claim 1 , wherein the flange region extends from an axial end of the annular inner region and the connection region extends outwards from the flange region in the radial direction.
  3. 3 . The bearing holding device according to claim 1 , wherein an axially inner side surface of the flange region is recessed axially outwardly from an axially inner side surface of the connection region to provide a clearance gap between the axially inner side surface of the flange region and a plane defined by the axially inner side surface of the connection region such that the flange region is axially spaced apart from the housing when the bearing holding device is attached to the housing.
  4. 4 . The bearing holding device according to claim 1 , wherein at least two of the spring elements are connected to one another in at least one region between the annular inner region and the connection region.
  5. 5 . The bearing holding device according to claim 1 , wherein the annular inner region is configured as an outer bearing shell of a rolling bearing, wherein a radial inner side of the annular inner region is formed with a running surface for rolling elements of the rolling bearing.
  6. 6 . The bearing holding device according to claim 1 , wherein the annular inner region is formed to accommodate an outer bearing shell of a rolling bearing.
  7. 7 . The bearing holding device according to claim 6 , wherein the radial inner side of the annular inner region has at least one annular groove configured to house a spring ring for axial support of the outer bearing shell of the rolling bearing.
  8. 8 . The bearing holding device according to claim 1 , wherein, in a radial outer side of the annular inner region, two annular grooves spaced apart from one another in the axial direction are formed, into which sealing elements are insertable for sealing an annular space between the outer side of the annular inner region, an inner side of the housing, and the sealing elements.
  9. 9 . A rolling bearing apparatus, which is formed with the bearing holding device according to claim 1 .
  10. 10 . The rolling bearing apparatus according to claim 9 , wherein, in an annular space between the outer side of the annular inner region and the inner side of the housing, by which the annular inner region is encompassed on the circumferential side and in which the annular inner region engages in axial direction at least in certain regions, an oil supply channel running in the housing opens, wherein, in a state where the annular space is subjected to oil, the rolling bearing apparatus has a squeeze oil damper acting in the radial direction between the outer side of the annular inner region and the inner side of the housing.
  11. 11 . The rolling bearing apparatus according to claim 9 , and further comprising rolling elements arranged between the inner side of the annular inner region, configured as an outer bearing shell, of the bearing holding device and an outer side of an inner bearing shell, the rolling elements configured to roll on the inner side of the annular inner region of the bearing holding device and on the outer side of the inner bearing shell.
  12. 12 . The rolling bearing apparatus according to claim 9 , wherein the annular inner region is arranged in the radial direction between the housing and an outer bearing shell of a rolling bearing.
  13. 13 . The rolling bearing apparatus according to claim 9 , wherein the bearing holding device is threaded to the housing in the connection region.

Description

The present disclosure relates to a bearing holding device with an annular inner region and a rolling bearing apparatus with such a bearing holding device. A bearing assembly for vehicles is known from CN 218177742U. The bearing assembly comprises a bearing inner ring, a bearing outer ring, balls arranged between the bearing inner ring and the bearing outer ring, a bearing cage accommodating the balls, a fixed outer ring, and a plurality of support rings arranged between the bearing outer ring and the fixed outer ring. The bearing cage is designed with a self-lubricating structure to minimize bearing wear. However, the bearing assembly has a requirement for large installation space in the radial direction and the axial direction, which is often not available to the required extent. The present disclosure is based upon the object of providing a bearing holding device that is structurally simple and favorable in terms of installation space, along with a rolling bearing apparatus that is favorable in terms of installation space and costs. This object is achieved with a bearing holding device and with a rolling bearing apparatus with features as disclosed herein. According to a first aspect, a bearing holding device with an annular inner region and a flange region, extending at least approximately in the radial direction to the outside, with recesses is proposed. The flange region is designed in one piece with the inner region and is narrower in the axial direction than the annular inner region. In addition, the flange region is surrounded at least in certain regions in the circumferential direction by a connection region, which is formed in one piece with the flange-like region and via which the inner region and the flange-like region can be firmly connected to a housing. Based upon its one-piece design, the bearing holding device is characterized by a small number of parts and therefore requires little assembly effort and simplifies storage. In addition, the bearing holding device is also favorable for installation in both the axial direction and the radial direction, since the flange region is narrower in the axial direction than the annular inner region. In addition, based upon the design of the flange region with recesses in the radial direction, the bearing holding device provides spring properties that—particularly in combination with a so-called “squeeze oil damper”—offer the possibility of damping in the desired manner vibrations in the region of a component that is rotatably mounted via a rolling bearing apparatus designed with the bearing holding device. If the flange region extends from the first axial end of the annular inner region and the connection region extends outwards from the flange region in the radial direction in each case, the bearing holding device can be fastened laterally in the axial direction to a housing, in which the annular inner region engages in the axial direction, with little effort via the connection region. An axial width of the connection region and an axial width of the flange region can be matched to one another in such a way that the connection region bears flush against the housing with an axial side surface, which faces the second axial end of the annular inner region, and an axial end face, facing the housing, of the flange region is spaced apart from the housing in the axial direction. This ensures in a structurally simple way that deformations of the flange region in the radial direction can take place unhindered. In other words, resilient deflections between the annular inner region and the connection region are not influenced by frictional forces between the flange region and the housing, as a result of which undefined operating states in the region of a rolling bearing apparatus designed with the bearing holding device are avoided. With a structurally simple embodiment of the bearing holding device that can be produced with little effort, the flange region has spring elements, formed to be annular at least in certain regions, which extend in the radial direction between the inner region and the connection region. It is possible that the spring elements in each case encompass or define circular recesses of the flange region. The flange region can have further recesses in the circumferential direction between the spring elements. Depending upon the respective application, it is possible to arrange at least two of the spring elements to be spaced apart from one another in the circumferential direction or to connect them to one another in at least one region between the inner region and the connection region. If the spring elements are connected to one another at least partially on the circumferential side, the spring stiffness of the flange region can be adjusted to be higher in a structurally simple manner compared to a design of the bearing holding device in which the spring elements are spaced apart from one another in the circumferential direction. With an emb