DE29722947U1 - Mounting device for bearings - Google Patents

Description

Mounting device for bearings

The present invention relates to a device for axially mounting and fastening a bearing to a shaft or machine element, with an elastic fastening element.

When mounting a bearing on a shaft or machine element, it is important that the mounting can be carried out easily in order to avoid time-consuming and expensive installation processes.

When attaching a bearing to a shaft or machine element, it is important to ensure adequate fastening to achieve good operating conditions. Otherwise there is a risk of axial displacement, which can cause serious damage to the bearing or its working environment.

JP-A-61-96218 shows a device for fastening an inner ring of a bearing to a shaft. The purpose of this invention is to provide a reliable axial fastening by arranging a groove formed at an angle in the opposite direction to the pressing-in direction of the inner ring on the outer peripheral surface of the shaft where an inner ring is inserted and applying pressure to a metal pressure piece to be deformed with one end pressed against the inner ring so that its other end is inserted into the groove. The bearing fastening device has an annular groove arranged on the outer peripheral surface of an insert shaft and a metal pressure piece pressed between the groove and the flank of an inner ring for fastening thereto.

is formed, the metal piece presses the inner ring against a shoulder so as not to move in the direction of the load. The metal pressure piece is pressed against the flank of the inner ring by means of a die, with one edge portion being brought into contact with the flank of the inner ring so that the pressure portion is deformed inward. Therefore, the other edge portion is inserted into the groove so that the metal pressure piece, in the state of surface contact, engages a shaft for reliable fastening.

EP-A2-0 192 339 shows a wheel bearing device which has a wheel hub, a bearing device and a holder for holding the inner ring of the bearing device on the wheel hub. The holder has a retaining ring and a load ring which is plastically deformed inwards so that the inner ring of the bearing device is preloaded against an annular shoulder of the wheel hub under a substantially axial tension.

In the two cited prior art documents, grooves represent essential features of the inventions. In the present invention, no grooves are required to achieve the object of the invention. A difference between the invention described in EP-A2-0 192 339 and the present invention is that a significant preload is not required.

The object of the invention is to provide a device for easily and effectively mounting and fastening a bearing to a shaft or a machine element.

The features of the invention are that the device when mounting the bearing on the shaft or the machine element
It is designed in such a way that more than half of the outer circumference of the shaft
or the inner circumference of the machine element in an angled direction on the shaft or the machine element
The elastic fastening element
is designed to allow axial movement in the mounting direction and prevent axial movement in the opposite direction.

In the following, embodiments of the invention are discussed in more detail with reference to the accompanying drawings. They show:

Fig. 1 shows a first preferred embodiment,
where a warehouse is exchanged for a sales
on a shaft with the device
can be fastened axially;

Fig. 2 shows a second preferred embodiment,
in which a bearing is axially
Heel of a wave with the device
can be attached.

Fig. 1 shows a first embodiment of the present invention. A device 1 for axially mounting and fastening a bearing 2 to a shaft 3 is shown. The device 1 has an elastic fastening element 4, the task of which is to achieve the fastening effect against the shaft 3. The device 1 can be fastened to the shaft 3 when mounting the bearing 2. However, the device 1 can also be used
when a bearing is mounted on a machine element

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and is attached, which is usually arranged on the outer ring of a bearing 2. The device 1 is designed in such a way that, in an angled direction, it engages the shaft 3 by more than half of the outer circumference of the shaft 3. In the embodiment shown here, it covers the entire circumference of the shaft 3.

The device 1 may consist largely of the elastic fastening element 4, which is designed to allow axial movement in the fastening direction and to prevent axial movement in the opposite direction by exploiting the elastic properties of the element 4. The device 1 supports at least one of the rings of the bearing 2. In the embodiment shown in Fig. 1, the device 1 supports the inner ring on the shaft 3. The elastic fastening element 4 may have a flange-like part at its end to assist in fastening the bearing 2 to the shaft 3.

Fig. 2 shows a second preferred embodiment which is in a wide range similar to the first preferred embodiment shown above. Due to these similarities, only differences between the two preferred embodiments will be discussed below. According to the second preferred embodiment, the device 1 is made in one piece with a bearing 2 or a suitable machine element. Such a bearing 2 can be made from a tubular material and is both cheap and simple in its construction. There are therefore reasons for preferring the combination of such a bearing and a device according to the invention.

Of course, the device according to the invention can also be used to attach an outer ring of a bearing to

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a machine element, e.g. a housing, in order to achieve an analogous fastening effect with the difference that the fastening element is not intended to be received between an inner ring of a bearing and a shaft.

In addition to its effect of securing an outer bearing race in an axial direction in a seat, the device according to the invention also has the ability to center the bearing race and thereby expand outwardly to such an extent that the outer race is prevented from twisting in the seat.

The device according to the invention is primarily intended for bearings with relatively low loads. Examples of applications for the proposed device in combination with a bearing are wheels for furniture, inline skates and wagon wheels.

Claims (4)

Expectations 1. Device (1) for axially mounting and fastening a bearing (2) to a shaft (3) or a machine element, with an elastic fastening element (4), characterized in that the device (1) can be mounted on the shaft (3) or the machine element when the bearing (2) is mounted and is designed in such a way that a contact enclosing more than half of the outer circumference of the shaft (3) or the inner circumference of the machine element is formed in an angled direction on the shaft (3) or the machine element, and the elastic fastening element (4) is designed in such a way that it enables axial movement in the mounting direction and prevents axial movement in the opposite direction. 2. Device according to claim 1, characterized in that it is manufactured in one piece with the bearing (2) or the machine element. 3. Device according to claim 1, characterized in that it supports at least one of the rings of the bearing (2). 4. Device according to claim 1, characterized in that the elastic fastening element (4) has a flange-like part.