A seal for a spherical bearing has an annular body portion having an arcuate cross section extending between a first axial end and a second axial end. The second axial end is positioned radially outward from the first axial end. The seal includes retaining ring positioned proximate the second end. The seal includes a scraper seal extending radially inward from the second end.

A self-adjusting instrumented rolling bearing providing an outer ring and an inner ring delimiting a rolling chamber and at least one row of rolling elements disposed therein, and a detection device including a target integral with the outer ring and a sensor integral with the inner ring, configured to detect a relative rotation between the outer ring and the inner ring around a central axis. The outer ring has an inner surface in the form of a spherical portion centered about a tilting center of the bearing and forming a rolling surface for the rolling elements. The radius of the inner surface of the outer ring is greater than a distance defined between the tilting center of the bearing and a specific position of the sensor that is the farthest from the tilting center.

A self adjusting instrumented rolling bearing having an outer ring and an inner ring delimiting a rolling chamber and at least one row of rolling elements disposed therein, and a detection device including a sensor integral with the outer ring and a target integral with the inner ring, configured to detect a relative rotation between the outer ring and the inner ring around a central axis. The outer ring has an inner surface in the form of a spherical portion centered about a tilting center of the bearing and forming a rolling surface for the rolling elements. The radius of the inner surface of the outer ring is greater than a distance defined between the tilting center of the bearing and a specific position of the target that is the farthest from the tilting center.

A rolling-element bearing includes a first bearing ring, a second bearing ring, and a seal unit formed in a multiple-piece manner, the seal unit including an at least part-ring shaped main element which is freely rotatable with respect to the first bearing ring and the second bearing ring and at least one seal lip. In addition, the main element and the seal lip are exchangeably connectable to each other.

A roller bearing ring having at least one raceway. The raceway provides a first and a second axial end and a diameter of the first axial end and a diameter of the second axial end are either both greater than the mean diameter of the raceway or both less than the mean diameter of the raceway. The roller bearing ring includes a projection, which is on the same side of the bearing ring as the raceway and which limits the raceway without being a part of the raceway.

The present disclosure relates to a self-aligning roller bearing comprising an inner bearing ring, an outer bearing ring and at least one row of roller elements interposed in-between the inner and the outer bearing ring. The roller bearing further comprises a cage comprising a ring-formed first cage portion and a plurality of distributed cage pocket bars protruding axially outwardly from an axial side face of the first cage portion, delimiting a plurality of cage pockets for the roller elements. The side face comprises one or more protrusions adapted to respectively abut a portion of an axial end face of a respective roller element, which portion comprises at least a radial centre of the roller element.

A roller bearing ring having at least one raceway. The raceway provides a first and a second axial end and a diameter of the first axial end and a diameter of the second axial end are either both greater than the mean diameter of the raceway or both less than the mean diameter of the raceway. The roller bearing ring includes a projection, which is on the same side of the bearing ring as the raceway and which limits the raceway without being a part of the raceway.

A multiple contact-point flexible bearing applicable to harmonic drive has three contact-point flexible ball bearing, four contact-point flexible ball bearing and line contact flexible roller bearing. Single rolling element has two or two more contact points with the outer ring raceway, i.e. outer ringflexspline interference fit component. Deformation accuracy of outer ringflexspline interference fit component and teeth meshing accuracy of flexible and rigid wheels are improved so unnecessary additional deformation is reduced and even avoided. Contact stress between rolling element and raceway is reduced. Slip of rolling element is controlled. Quality and technical advantages such as bearing assembly conditions and lubrication conditions in operation are enhanced. Eventually, operating accuracy and service life of the flexible bearing, flexspline even the whole harmonic drive are improved, which means a lot in practical engineering.

In a tripod type constant velocity universal joint 1, when D1 represents a large inner diameter being a diameter of a circle connecting radially outer end portions of roller guide surfaces 7 and D2 represents a small inner diameter being a diameter of a circle connecting radially inner end portions of the roller guide surfaces 7, a ratio D2/D1 between the small inner diameter D2 and the large inner diameter D1 is set within a range of from 0.73 to 0.80. Further, when d represents a large diameter of a spline formed in a trunnion hub 8 of a tripod member 3 and PCD represents a pitch circle diameter of the roller guide surfaces 7, a ratio d/PCD between the large diameter d and the pitch circle diameter PCD is set to 0.60 or more.

An assembly comprises a component and a spherical bearing mounted in a bore of the component. The spherical bearing comprises an outer race received within the component bore, an inner spherical member mounted for rotation within the outer race and a releasable retaining element for releasably retaining the outer race in the component bore. The outer race and the component comprise interengaging indexing formations whereby said outer race may be mounted within said component bore in a plurality of angular positions relative to the longitudinal axis (A) of the component bore.