DE8318992U1 - Spherical bearings - Google Patents

Description

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Helmut Elges KG, Osnabrücker Str. 107, 4800 Bielefeld

Spherical bearings

The present innovation relates to a spherical plain bearing consisting of an inner and an outer ring, with the running surface the outer ring with a plastic coating with different admixtures.

Joint bearings of the aforementioned type are known per se.

In the known spherical plain bearings, the running surface of the outer ring is either coated with plastic films, or a coating is applied in such a way that plastic granulate and appropriate admixtures are used applied to the tread and then compacted by applying heat and pressure.

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Elges

Both methods require relatively precise prefabrication ί

supply of the outer ring in order to achieve the required accuracy of fit- "< compared to the inner ring.

The present innovation is based on the task to design a spherical bearing of the generic type in such a way that

(^ that the outer ring with relatively rough tolerances %

can be prefabricated and that an exact %

Guiding of the inner ring in the outer ring is guaranteed. | This object is achieved according to the innovation in that f

the coating of the outer ring made of pourable and pourable - ^:

curable plastics with admixtures to improve the running properties, there is ί.

By using a pourable and curable Material for coating the outer ring can be the inner ■■

ring can be used as a counterpart, so that there is always an l

perfect fit of the inner ring in the coated outer "-;

^ ring is given. |

It is expedient for the coating of the outer ring a material used as it is commercially available e.g. B. under the

Designation Lubrofluor is available. ■ The additives added to the plastic for improvement:

The running properties depend on the particular application |

purpose of the spherical bearing dependent, so that an enumeration f

and the corresponding known admixtures corresponds H

is honest. 'f

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Elges

It is advantageous / to provide the inner ring with a non-stick coating before the plastic is poured in / because on the one hand this enables the inner ring to be released quickly after the plastic has hardened and on the other hand - after removing the non-stick agent - the necessary internal clearance is achieved.

The outer ring to be coated is expediently provided with a roughened inner surface, so that the cast plastic securely with the after curing Outer ring is connected.

An embodiment of the innovation is shown in the accompanying drawing and will be described in more detail below described.

The drawing shows a half section through a spherical plain bearing according to the present innovation.

The joint bearing shown as an exemplary embodiment and provided overall with the reference numeral 10 consists in a known manner from an inner ring 11 and an outer ring 12, which in the area of its running surface with a coating 13 made of plastic with various trimmings gen exists.

Elges

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The surface to be coated 14 of the outer ring 12 is ittit roughened, so that a good mechanical Establishing the coating 13 in the outer ring 12 is achieved.

The coating 13 of the outer ring 12 is made according to

present innovation made of a pourable and curable / ν baren plastic with additions to improve the Running properties. This plastic along with its admixtures is simply in the between the inner ring 11 and Outer ring 12 is cast in the existing gap, then the plastic hardens and is firmly connected to the outer ring 12.

The surface of the inner ring 11 is expediently provided with a non-stick coating before the plastic is poured in, which prevents the inner ring 11 from becoming detached the hardening of the plastic facilitated.

Advantageously, a plastic is used along with desirable () th admixtures, such as is offered on the market, for example, under the name Lubrofluor.

Elges

List of reference symbols

- 10 spherical bearings

11 inner ring

12 outer ring

13 coating

14 area to be coated

Claims (2)

Patent attorneys ge Dr. Loesenbeck (1980) Dipl.-Ing. Siracke Dipl.-Ing. Loesenbeck Jöüenbecker Str. 164, 480P Bielefeld; Protection claims 1. Spherical plain bearing, consisting of an inner and an outer ring, the running surface of the outer ring with a coating consists of plastic with various admixtures, characterized in that the Coating (13) of the outer ring (12) made of pourable and curable plastic with additives for improvement the ijauf feature exists. 2. Joint bearing according to claim 1, characterized in that the coated surface (14) of the outer ring (12) with Roughening is provided.