Schaeffler Technologies Ag & Co .Kg

Schaeffler Kg

Georg Goppelt

Heinrich Hofmann

Rainer Eidloth

Horst Doppling

Harald Peschke

Andreas Bohr

Rainer Schenk

Thomas Gietl

Horst Döppling

A radial bearing configured as a single-row spherical roller bearing is provided that includes an inner and outer bearing ring, and rollers arranged between the bearing rings. The rollers have two side faces which are flattened symmetrically from a spherical base shape, and roll in two groove-shaped raceways which are defined by two axial rims. The width of the rollers between their side faces is at least 70% of the diameter of the spherical base shape and is greater than the distance between the axial rims. The rollers are in full linear contact with their running faces in the bearing rings at an operational pressure angle of up to 25&#xb0; on both sides of the bearing longitudinal axis. The distance between radially opposite axial rims when the bearing rings are arranged eccentrically to each other is less than the diameter of the spherical base shape of the rollers.

Radial anti-friction bearing, in particular, single-row spherical roller bearing, and method for mounting thereof

The invention relates to a tensioning or deflector pulley, in particular for the belt drive on an internal combustion engine, essentially comprising a plastic or steel running pulley, formed by an inner hub ring, an outer running ring and a pulley disc, connecting both rings to each other, with a radial roller bearing fixed in the hub ring of the running pulley, made up of an inner bearing ring and an outer bearing ring with a number of rolling bodies running between the bearing rings in channeled running tracks, retained at regular separations from each other by a bearing cage with a seal to both sides of the roller bodies, by means of which the cavity, formed between the bearing rings and designed as a grease reservoir, is sealed.

Tensioning or deflector pulley in particular for the belt drive on an internal combustion engine

A radial anti friction bearing () which is configured as a single-row spherical roller bearing, which includes an outer bearing ring (), an inner bearing ring () and a plurality of spherical rollers () that are arranged between the bearing rings (). The spherical rollers have respectively two side faces () which are flattened symmetrically from a spherical base shape, are retained with uniform spacing to each other a bearing cage () and roll with their running faces () in two groove-shaped raceways () which are defined, respectively, by two axial rims (and). The width (b) of the spherical rollers () between their side faces () is smaller than the distance (a) between the radially opposing axial rims (and), such that the spherical rollers () can be in the space therebetween via the axial mounting method in the radial anti friction bearing. The radial anti-friction bearing () has an increased axial load capacity suitable for variable axial loads at a operational pressure angle (&#x3b1;) of up to&#xb0; on both sides of the bearing longitudinal axis (), in which the raceways () in both bearing grooves () are formed with an increased depth (t, t) and width (b, b) and the spherical rollers () have a width (b) between their side surfaces () which is arranged to the operational pressure angle (&#x3b1;) at

Single-row spherical roller bearing with increased axial load capacity

The radial rolling bearing has an outer bearing ring, an inner bearing ring, and spherical rollers arranged between bearing rings. The spherical rollers have two flat side faces arranged parallel to one another. The spherical rollers are retained with uniform spacing to one another in the peripheral direction by a bearing cage. The spherical rollers have a width between their side faces of approximately 70% of the diameter of their spherical basic shape. The running faces of the rollers roll in two groove-shaped raceways which are formed in the inner side of the outer bearing ring and in the outer side of the inner bearing ring. At least one of the axial rims which delimit the groove-shaped raceways is reduced in radial height such that the radial bearing can be equipped with an increased number of spherical rollers in an axial assembly process.

Radial rolling bearing

A roller bearing which is sealed by a sealing washer that forms a rubbing seal and two gaps. As a result of positions which are spaced apart from one another in the axial direction of a pivot point and a center of mass of an elastic support part that bears the rubbing seal, the latter is loaded with an outwardly acting axial force in the event of an increased rotational speed as a result of the centrifugal force, with the result that the rubbing sealing lip is in contact with a lower force as the rotational speed increases.

Growing community of inventors

Pfofeld, Germany

Georg Goppelt