DE7312719U - Backlash-free radial roller bearing - Google Patents

Description

The invention relates to a radial roller bearing or -Nadellager whose 'outer raceway encloses the rolling elements with elastic preload, so that the bearing works free of play. Such a roller bearing consists according to the German utility model 7 238 539 from one thin-walled, with a separation point, so slotted outer race ring, which is from an elastic Ring is enclosed with bias.

The object of the invention is to improve the known backlash-free roller bearing, in particular to simplify the production of the slotted outer race.
The production of a raceway provided with a separation point requires rolling tools, which are relatively expensive in particular if the raceway is to have radially directed rims or tabs on its side edges for axial fixation.

According to the invention it is proposed instead of one
one-piece, slotted race one of two or more parts lined up without a connection
to use existing raceway whose separation points have an obliquely angled, preferably arrow-shaped ^N course and whose side edges are bent radially inwards and / or outwards
Own rag.

731271913.1173

· 9 • »as ·

^Fi g "1 ^{of the} accompanying drawing shows in longitudinal section a first Ausführungsbeis Piel with the raceway enclosing provided with Borden elastic ring;

Fig »2 shows a corresponding longitudinal section of a

Bearing with a rim-free elastic ring surrounding the race and

FIG. 3 is a front view of the bearing according to FIG. 2.

In Fig. 1, the thin-walled outer ring consisting of two sections 1 and 1 'is directed radially inward Side ribs 2, 3 provided that extend over the entire circumferential length of the raceway sections 1, 1 "or only can extend over short sections of the same. The two raceway sections 1, 1 "are about a undivided needle cage 4 and are held together by an annular rubber body 5. Due to the inwardly directed rims 6, 7 of the rubber body 5, the raceway sections 1, 1 * axially fixed.

In the embodiment illustrated in FIGS. 2 and 3, the raceway sections 11, 11 'are on their side edges provided with partly inwardly and partly outwardly bent tabs 12 and 13, respectively. The inward ones Tabs 12 are used for axial guidance of the needle cage 4, while the outwardly directed tabs 13 a ring-shaped rubber body 15, a cylindrical piece of hose, take up between them «

Claims (3)

When the bearing is pressed into a bore that is smaller than the outer diameter of the rubber body 5 or when an inner ring is inserted or a shaft with a raceway. whose diameter is larger than the inner needle envelope circle of the needle cage in the unassembled state, a tension arises between the rolling elements and the raceways, which is elastically compensated for by the rubber body 5 and 15, respectively. Protection claims: 1. Backlash-free radial roller bearing or needle roller bearing with a thin-walled outer race with a separation point, which is surrounded by an elastic ring Bias is enclosed, characterized in that that the outer race consists of two or more, without connection lined up sections, which together form a ring with a corresponding number of separation points. 2. Backlash-free rolling bearing according to claim 1, characterized in that that the separation points have an obliquely angled, preferably arrow-shaped course. 3. Backlash-free rolling bearing according to claim 1 and 2, characterized in that the sections at their side edges have radially directed tabs bent inwards and / or outwards. "" 7112711 Protection claims: ■ ■ · 1. Backlash-free radial roller bearing or needle roller bearing with a thin-walled outer race with a separation point, which is surrounded by an elastic ring Bias is enclosed, characterized in that that the outer race consists of two or more, without connection strung together sections, which together make one 'Form a ring with a corresponding number of separation points. 2. Backlash-free rolling bearing according to claim 1, characterized in that that the separation points have an obliquely angled, preferably pebble-shaped course. 'S 3 *. Backlash-free roller bearing according to Claims 1 and 2, characterized marked, "d * S the sections a» their side edges ns itself bent inwards and / or outwards, radially have straightened lobes. * "· 731271913.1173