DE1067265B - - Google Patents

Description

The invention relates to ball bearings that are capable of operating simultaneously in radial and axial directions to absorb compressive forces acting on them.

The normal radial ball bearings cannot, if they are designed as ring shoulder bearings absorb small pressure forces acting in the axial direction. If there are larger compressive forces in the axial direction Direction, this is generally taken into account by installing additional disc ball bearings, ίο

In addition, bearings are known in which considerable axial loads are absorbed in an angular contact bearing will. With these bearings, however, only one side is affected by the perpendicular load of the warehouse.

There are also already known bearing designs in which an outer race with an L-shaped cross-section overlaps an inner race, for example by the axial pressures of horizontally mounted shafts to record. With these bearings, however, considerable forces of sliding friction have to be accepted will.

They are also used in particular as support bearings for absorbing the pressure of machine parts going back and forth Known bearings used in which the unimpeded rotation of the bearing balls in a closed Path is made possible by the fact that the balls are not subjected to any compressive forces when they return. In such bearings, the bearing pressure is thus only absorbed by some of the balls. aside from that these bearings are not suitable for absorbing bearing pressures acting at right angles to one another.

It has also already been proposed that it be pivotable about a pivot pin and that it is more vertical Compression load double-acting disk groove bearing, the balls of which are partly in a groove above the bearing washer, between the bearing washer and the base plate, partly in a groove below the bearing washer, between the bearing disk and an additional ring disk forming the counter bearing, run and at the transition points from the upper to the lower running groove are provided in the bearing washer, for Absorption of forces acting in the horizontal direction the running groove in the bearing washer on the Have pivot towards open shape and the balls are supported inwardly against a cylindrical extension to leave, so that the lateral pressure absorption is preferably carried out at the points where the Balls when changing from the upper to the lower running groove with regard to the pressure acting vertically are relieved.

What differs from these bearings is the inventive ball bearing, which is used to simultaneously absorb radial and axial forces, an inner ball bearing and a ball bearing which is used to absorb radial and axial forces simultaneously

Applicant: Dipl.-Ing. Waither Gross jun. _r Stuttgart-S, Römerstr. 79

Dipl.-Ing. Waither Gross jun., Stuttgart,
has been named as the inventor

Ball bearing having an outer race, in which the outer race engages over the inner race and the running balls arranged z \ vischen the races and the two races have an L- shaped cross-section along their circumference, in that to bring about a change between only radial and only axial Load on the running balls, both the radial and the axial bearing pressure absorbing running surfaces alternately have a different distance from one another.

Compared to the known bearings, this camp has the advantage of being able to withstand loads at the same time Pressures of the same size acting perpendicular to one another and, moreover, the further advantage avoiding any bearing play.

Compared to the bearing mentioned at the last .Stelle with bearing balls rotating in different planes the bearing according to the invention also has the advantage of a much simpler structure and a much easier production.

In one embodiment of the new ball bearing it is provided that only the inner race against each other offset recesses on the cylindrical running surface and on the running surface perpendicular to it having.

The alternating recesses of the two running surfaces are expedient same size.

The ball bearing according to the invention is characterized by a particularly simple and largely axially symmetrical structure, which the production and Machining of the bearing rings is made much easier and cheaper.

Another advantage is based on the fact that the ball bearing is dustproof and waterproof in its simplest form can be made.

909 638/185

Claims (3)

ι vj υ / c υ <J In the drawing, the subject of the invention is shown schematically using an example. 1 shows a section in the axial direction through the ball bearing arranged on a shaft, FIG. 2 shows a plan view of the bearing with the outer race cut along line oo in FIG. 1, FIG. 3 shows a view of the bearing along line bb in Fig. 2 cut race, with the left of the breaking edge cc the particular embodiment of a ball bearing seal is shown. On the shaft 11 provided with a collar 12, the inner race 21 is applied with a press fit, the surface 22 of the race 21 resting against the collar 12 of the shaft 11. The inner race ring is offset on its outer periphery in such a way that an annular step 23 receiving the balls 31 is formed therefrom. The radial running surface 24 of the ring step 23 has recesses 25, the axial running surface 26 offset recesses 27 with respect to the recesses 25. The outer race 41 engages over the inner race 21 and balls 31, which has a bore 42 that is slightly larger than the diameter of the shaft 11 is provided. The race 41 has a radial running surface 43 and an axial running stream 44. * 5 Due to the recesses 25, 27 provided on the running surfaces 24, 26 of the raceway 23 of the inner race 21, the bearing according to the invention is suitable for assuming the function of both a radial and an axial ball bearing. Its property as a radial bearing is based on the interaction of the radial running surface 24 of the inner race 21, interrupted by the recesses 25, with the balls 31 and the radial running surface 43 of the outer race 41, whereby the recess 27 of the inner race 21 arranged in the area of the raised radial running surface 24 of the inner race 21 Axial running surface 26, the radially engaged balls 31 are relieved of the influence of axial forces. The property as a thrust bearing is based on the interaction of the axial running surface 26 of the inner race 21, which is interrupted by the recesses 27, with the balls 31 and the axial running surface 44 of the outer race 41, whereby the recesses 25 of the inner race 21 arranged in the area of the raised axial running surface 26 of the inner race 21 Radial running surface the axially engaged balls 31 are relieved of the influence of radial forces. Half of the balls 31 are loaded radially or axially. In Fig. 3 of the drawing the breaking edge C-C is shown as a special embodiment of a ball bearing seal, the so-called labyrinth seal. Patent ansproc.h ε: 1. For the simultaneous absorption of radial and axial forces serving ball bearing with a inner and an outer race, in which the outer race, the inner race and the arranged between the races overlaps running balls and the two races along their Circumference have an L-shaped cross-section, characterized in that for bringing about a change between only radial and only axial loading of the ball bearings both the radial as well as the running surfaces absorbing the axial position pressure alternately one, different have a large distance from each other. 2. Ball bearing according to claim 1, characterized in that only the. inner race against each other offset recesses on the cylindrical one and on the one perpendicular to it Has annular tread. 3. Ball bearing according to claim 2, characterized in that the successive alternating Recesses of the two running surfaces are the same size. Publications considered:
German Patent Nos. 866278, 704 790;
French Patent No. 1 102 868;
Swiss patents No. 39 763, 34 786; Belgian patent specification No. 526 898. 1 sheet of drawings