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DE-102024133186-A1 - Storage arrangement

DE102024133186A1DE 102024133186 A1DE102024133186 A1DE 102024133186A1DE-102024133186-A1

Abstract

The present disclosure relates to a bearing arrangement (1) comprising a bearing (2) having an inner bearing ring (3), an outer bearing ring (4) and a bearing body (5) arranged between the inner bearing ring (3) and the outer bearing ring (4), and a sealing arrangement (6) comprising a sealing carrier (7) connected to an outer bearing ring (4), a sealing element (8) attached to the sealing carrier (7), and a running ring (9) attached to the inner bearing ring (3), wherein the sealing carrier (7) has an axial section (10) bearing on the inner circumference of the outer bearing ring (4) and the sealing element (8) has a lip (12) extending from the sealing carrier (7) in extension of the axial section (10) and a radially outward extension (13) from an end of the lip (12) facing away from the sealing carrier.

Inventors

  • Darius Dlugai
  • Marco Krapf
  • Andreas Becker

Assignees

  • Schaeffler Technologies AG & Co. KG

Dates

Publication Date
20260513
Application Date
20241113

Claims (10)

  1. Bearing arrangement (1), comprising a bearing (2) having an inner bearing ring (3), an outer bearing ring (4) and a bearing body (5) arranged between the inner bearing ring (3) and the outer bearing ring (4), and a sealing arrangement (6) comprising a sealing carrier (7) connected to an outer bearing ring (4), a sealing element (8) attached to the sealing carrier (7), and a running ring (9) attached to the inner bearing ring (3), characterized in that the sealing carrier (7) has an axial section (10) bearing on the inner circumferential side of the outer bearing ring (4) and the sealing element (8) has a lip (12) extending from the sealing carrier (7) in extension of the axial section (10) and a radially outward extension (13) from an end of the lip (12) facing away from the sealing carrier.
  2. Storage arrangement (1) according to Claim 1 , characterized in that the sealing arrangement (6) forms an axial gap on the inlet side between the sealing element (8) and the inner bearing ring (3).
  3. Storage arrangement (1) according to Claim 1 or 2 , characterized in that the sealing arrangement (6) forms a radial gap on the inlet side between the sealing element (8) and the running ring (9).
  4. Storage arrangement (1) according to one of the Claims 1 until 3 , characterized in that the lip (12) has a drip groove (14) on its inner circumferential side at the end facing away from the sealing carrier.
  5. Storage arrangement (1) according to one of the Claims 1 until 4 , characterized in that the sealing carrier (7) has a radial section (11), wherein the axial section (10) of the sealing carrier (7) extends from the radial section (11) in the direction towards the bearing bodies (5) and wherein the lip (12) of the sealing element (8) extends from the radial section (11) in the direction away from the bearing bodies (5).
  6. Storage arrangement (1) according to one of the Claims 1 until 5 , characterized in that the sealing element (8) has an axial sealing lip (15, 17, 18) which is arranged radially inside the lip (12) and extends from the sealing carrier (7) in the direction away from the bearing bodies (5) and towards the running ring (9), and/or has a radial sealing lip (19) which extends radially inwards from the sealing carrier (7) and towards the running ring (9).
  7. Storage arrangement (1) according to one of the Claims 1 until 6 , characterized in that the running ring (9) is essentially C-shaped and bears against the inner bearing ring (3) on the outer circumferential side as well as on the axial side.
  8. Storage arrangement (1) according to one of the Claims 3 until 7 , characterized in that the running ring (9) has an axial finger (23), wherein the radial gap is formed between the axial finger (23) and the sealing element (8).
  9. Storage arrangement (1) according to Claim 8 , characterized in that the axial finger (23) extends to a free end of the sealing lip (15) and to a catch channel (16) formed by the sealing lip (15).
  10. Storage arrangement (1) according to Claim 8 , characterized in that the axial finger (23) extends beyond a free end of the sealing lip (15) and forms a sealing gap with the sealing element (8) at its end face.

Description

The present disclosure relates to a bearing arrangement comprising a bearing and a sealing arrangement. The bearing arrangement is intended in particular for use in a vehicle. In particular, the bearing arrangement serves as a wheel-side seal. Bearings are used to support rotating components such as shafts. Supporting components exposed to harsh environmental conditions presents a challenge, as the ingress of dirt or liquid can damage the bearing and potentially lead to its failure. For these applications, such as a vehicle wheel bearing, appropriately sealed bearings are available. These bearings incorporate one or more seals between the bearing rings to prevent dirt and/or liquids from entering the bearing housing. From the state of the art of printing US 2021/0324 909 A1 A sealing arrangement is known in which a sealing carrier with an axial section is pressed radially outward into a bearing outer ring and extends further radially outward from the axial section to connect a sealing lip of a sealing element. A problem in the prior art is that the geometry of the sealing carrier is often very complex (and therefore cost-intensive) for achieving sufficient sealing performance (or for the desired connection of the sealing lips of the sealing element), so that, for example, several folding steps are required. From the state of the art of printing CN 105593546 B A sealing arrangement is known in which an L-shaped sealing carrier rests radially on the inner side of a bearing outer ring to connect an axial sealing lip of a sealing element. The sealing lip is designed in such a way that fluid can flow relatively easily into the sealing arrangement, so that sufficient sealing performance cannot be guaranteed. From the state of the art of printing DE 10 2018 103 109 A1 Furthermore, a sealing arrangement is known in which an axial gap is formed on the inlet side, which, however, opens into a large free space, so that fluid can flow relatively easily (without flow obstructions) from this free space towards the bearing bodies. Therefore, sufficient sealing performance cannot be guaranteed. Against this background, the present disclosure aims to avoid or at least reduce the disadvantages of the prior art. In particular, a bearing arrangement is to be provided in which a particularly good sealing performance at the inlet of the sealing arrangement can be ensured and in which the individual components, especially a sealing carrier, are of a particularly simple design and can therefore be manufactured cost-effectively. This problem is solved by a storage arrangement with the features of the independent patent claim. Advantageous further developments are the subject of the dependent claims. Accordingly, the bearing arrangement comprises a bearing. The bearing has an inner ring, an outer ring, and a bearing body arranged between the inner and outer rings. The bearing arrangement also includes a sealing arrangement. The sealing arrangement comprises a seal carrier connected to an outer ring, a sealing element attached to the seal carrier, and a raceway attached to the inner ring. According to the present disclosure, the sealing carrier has an axial section that rests against the inner circumference of the bearing outer ring. Furthermore, the sealing element has a lip extending from the sealing carrier in line with the axial section, and a radially outward extension from an end of the lip facing away from the sealing carrier. This has the advantage that the lip with the extension forms a so-called spoiler lip, which significantly improves the sealing performance at the inlet of the sealing assembly. Furthermore, the spoiler lip can be directly attached to the seal carrier as an extension of the axial section of the seal carrier (which is required for mounting anyway), resulting in a relatively simple seal carrier design. According to a preferred embodiment, the sealing arrangement can form an axial gap on the inlet side between the sealing element, in particular the extension, and the inner bearing ring. This has the advantage of ensuring a sufficient sealing function. According to a preferred embodiment, the sealing arrangement can form a radial gap on the inlet side between the sealing element, in particular the lip, and the running ring. The radial gap can preferably be located further inwards in the sealing arrangement than the axial gap. This means that the incoming fluid first flows through the axial gap before it flows through the radial gap. through which water flows. This has the advantage of ensuring a sufficient sealing function. According to a preferred embodiment, the lip can have a drip groove on its inner circumferential side at the end facing away from the seal carrier. The drip groove prevents/interrupts a capillary effect, thus preventing fluid from flowing along the lip into the sealing arrangement. According to a preferred embodiment, the sealing carrier can have a radial section. Preferably, the axial sec