DE7005916U - ROLLER BEARINGS, IN PARTICULAR CLUTCH THRUST BEARINGS - Google Patents

Description

SKF KUGELLAGKRKYBKIKEN GXiBH Schweinfurt, February 17th, 1970

TAT / Bla / Ho

Rolling bearings, in particular clutch pressure bearings

The innovation relates to a roller bearing, in particular a clutch pressure bearing, preferably with a circumferential outer ring, the bearing rings of which are made of B? 3ch are made.

It is already known that clutch thrust bearings are used in clutches, are preferably installed in friction clutches of motor vehicles, made of sheet metal, the cross-section of the substantially U-shaped bearing rings with the legs each to the other Bearing ring are pushed axially into one another. Draw these bearings in particular because of its low weight and a small one Mass moment of inertia of the bearing rings. Under bcs' "their circumstances However, the running noise of this well-known device can be a little too loud.

The task of this innovation is therefore to make a bearing with bearing rings To create sheet metal in which the bearing noise, in particular that which occurs when the rotating bearing ring starts up and brakes in the intermittent Operation of a motor vehicle clutch arise on everyone Case to be dampened.

This object is achieved according to the invention in that in a camp with sheet metal bearing rings between the fixed bearing ring and the Shaft or the like. A support ring made of an elastic material, for example plastic, is used, and that further means are provided in which a preferably radially inward or outwardly directed annular flange of the circumferential bearing ring engages with little play, or the one Engage behind the ring flange pointing radially inwards or outwards with little play. According to the innovation, it is proposed, for example, the support ring on the side facing the rotating bearing ring to provide an annular groove in which the radially inwardly curved edge of the circumferential bearing ring engages with play.

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February 17, 1970

Another feature of the innovation is a separate thrust ring made of an elastic material provided, which on the outer edge of the fixed bearing ring through the inwardly flanged edge of the the stationary bearing ring pushed on the sheet metal sleeve in the axial direction fixed and arranged with little play on the outside of the radially outwardly curved outer edge of the circumferential bearing ring is. In this design, the support ring is preferably designed as a sliding sleeve and is made of a self-lubricating plastic, for example .

Further details of the innovation can be found in the following description of various Examples of clutch thrust bearings are taken from, which are illustrated in the accompanying drawings.

Show it:

Fig. 1 shows a bearing according to the innovation with the inner ring

supporting plastic ring, which is attached to the jacket with a Ring groove is provided,

2 shows a bearing according to the invention with one attached to the inner ring Thrust ring,

3 shows another embodiment of the bearing according to the innovation.

As can be seen from FIG. 1, the bearing according to the invention consists of the outer ring 1, the inner ring 2, the rolling elements h held by a cage 3 and a support ring 5 made of an elastic material, for example plastic, in the bore of the inner ring 2 . Both bearing rings, which are hardened by nitriding, for example, are made of sheet metal and are drawn like a pot. The outer ring i engages with the outer, parallel to the bearing axis extending edge 6 with little play in the cylindrical bore 7 of the outer, axially extending part of the inner ring 2, so that a labyrinth seal is formed. The outer ring 1 is also provided with a contact surface 8 for the release elements, such as release lever, membrane, etc. (not shown) and rotates when the clutch is disengaged. The inner edges 9, 10 of the bearing rings 1, 2 are angled radially inward and are arranged next to one another. The only parts of the stock are through the

Leaf _

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SIiF KUGELLAGiIHFADRIKEN GMBH Sheet - 3 -

17 .. °. 1970

Support ring ·! 5 held together, on one side with an annular groove 11 is provided, in which the radially inwardly bent Ran 19 of the outer ring 1 intervenes with game. The edge 9 of the outer ring 1 runs Ijoim Starting and braking on the outer, radially extending wall dor the annular groove 11. The inner ring 2 is surrounded by a Bloch sleeve 12, whose outer edge 1 3 for attachment to the inner ring to the inside Edge of the inner ring is crimped. The inner edge 1Ί of the sheet metal sleeve IL 'is drawn axially inward and rests against the cylindrical bore surface of the support ring 5. The sheet metal sleeve 12 is also with a all around end, provided projecting shoulder 15, so that the bore surface is wider in the axial direction and the guidance of the bearing on the VeIIe is more accurate.

The clutch pressure bearing shown in Fig. 2 differs from the embodiment shown in Fig. 1 by the different design of the inner and outer ring in the area of the inner and outer edge and by arranging a separate stop ring l6. The inner edge 17 of the outer ring 18 is angled axially inward and lies with little play on the axially outwardly directed edge 19 of the inner ring 20 at. The stop ring 16 is arranged in the bore 21 of the sheet metal sleeve 22 and is supported axially on the outer edge 23 of the inner ring 20 away. By uni-flanging the outer sheet metal sleeve edge 24, the stop ring 16 is fixed on the inner ring 20 and also ensures that the inner ring 20 is firmly connected to the sheet metal sleeve 22. The inner ring 20 forms together with the stop ring l6 and the radially outwardly directed edge 25 of the outer ring, a labyrinth seal. With the one designed as a sliding sleeve Support ring 26, for example made of plastic, the entire jacket of parts of the inner ring 20 and the sheet metal sleeve 22 is enclosed.

The bearing shown in Fig. 3 differs from the construction according to Fig. 2 only in that the jacket of the support ring 27 only in middle area of parts of the inner ring and the sheet metal sleeve is included.

Sheet - 4 -

HDiI-LrUjIN

February 17, 1970

The roller bearing according to the innovation can save material and thus cheap produced, has large spaces for receiving lubricant and is effective against ingress of foreign bodies and leakage of Lubricant protected.

These forms of execution * are only examples of the innovation Rolling bearing represents. Changes in the design of the individual components are easily possible within the framework of the innovation.

Claims (2)

SKF KlJGELLAGMlFABRIk ^ iJ GMWI Schweinfurt, 17.2 slot claims 1. Rolling bearings, in particular clutch pressure bearings, preferably with a circumferential Outer ring, the bearing rings of which are made from sheet metal, both or only the inner ring being enclosed by a sheet metal sleeve, with the bearing rings, which are essentially U-shaped in cross-section are pushed into each other with the axially extending legs pointing towards the other bearing ring, so that the legs of the bearing rings run with the formation of a gap or labyrinth seal at a small distance from each other, characterized in that between the stationary Bearing ring (2, 20) and the shaft or the like. A support ring (5, 26, 27) made of elastic material, ζ.B. Plastic, is used, and that means (ll or l6) are provided, in which a preferably radial inwardly or outwardly directed annular flange (9) of the circumferential bearing ring (1, 18) engages with little play, or one of them engages radially Grip inwardly or outwardly facing annular flange (25) with little play. 2. Rolling bearing according to claim 1, characterized in that the support ring (5) on the side facing the rotating bearing ring (l) with a Annular groove (ll) is provided in which the radially inwardly curved edge (9) of the circumferential position ring engages with play. 3 · Rolling bearing according to claim 1, characterized in that a thrust ring (l6) made of an elastic material, e.g. plastic, rests axially on the outer edge (23) of the fixed bearing ring (20) and through the after inside beaded outer edge (24) of the fixed bearing ring (20) pushed-on sheet metal sleeve (22) is fixed in the axial direction, and that the thrust ring (l6) with little play on the outside of the radially outwardly curved outer edge (25) of the circumferential bearing ring (18) is applied. k. Rolling bearing according to one of Claims 1 to 3, characterized in that the inner edge (14) of the sheet metal sleeve (12, 22) is drawn axially inward and engages in the bore of the support ring (5, 26).