Abstract: A bearing provides a first ring and a second ring capable of rotating concentrically relative to one another. At least one tapered groove is formed on a first axial cylindrical surface of the second ring and oriented towards the first ring. The bearing further provides at least one first distance sensor mounted on the first ring and facing a tapered wall of the tapered groove of the second ring that is inclined with respect to the axis of the bearing, a longitudinal axis of the first distance sensor being perpendicular to the axis, and at least one second distance sensor mounted on the first ring and distinct from the first distance sensor. The second distance sensor radially faces a second axial cylindrical surface of the second ring.

Abstract: A bearing provides a first ring and a second ring capable of rotating concentrically relative to one another. At least one tapered groove is formed on a first axial cylindrical surface of the second ring and oriented towards the first ring. The bearing further provides at least one first distance sensor mounted on the first ring and facing a tapered wall of the tapered groove of the second ring that is inclined with respect to the axis of the bearing, a longitudinal axis of the first distance sensor being perpendicular to the axis, and at least one second distance sensor mounted on the first ring and distinct from the first distance sensor. The second distance sensor radially faces a second axial cylindrical surface of the second ring.

Abstract: The invention relates to a method for manufacturing a pulley device for a tension roller or a roller of a transmission element providing a pulley, at least two rolling-element bearings and a sleeve, the rolling-element bearings being assembled adjacently on the sleeve before the pulley is formed by injecting material onto the rolling-element bearings.

Abstract: A pulley device that includes a bearing, a pulley mounted on the bearing and two shields disposed axially on either side of the bearing is provided. The device further includes one retaining plug mounted into a bore of the bearing and a bore of each shield. The retaining plug is fitted at least in the bore of the bearing and cooperates by contact with the shields to retain the shields on the plug.

Abstract: The invention relates to a method for manufacturing a pulley device for a tension roller or a roller of a transmission element providing a pulley, at least two rolling-element bearings and a sleeve, the rolling-element bearings being assembled adjacently on the sleeve before the pulley is formed by injecting material onto the rolling-element bearings.