The disclosure relates to a head bearing assembly for a dental or surgical handpiece, comprising an outer sleeve, in which at least four radial bearings are arranged, which enclose an axis of rotation and each have their own bearing outer ring or a common bearing outer rings, wherein the bearing outer rings are surrounded radially on the outside by the outer sleeve in the circumferential direction about the axis of rotation, and each radial bearing has at least one or exactly one rolling element row with rolling elements which are arranged one behind the other in the circumferential direction and rolling in the respective bearing outer ring. The head bearing assembly according to the disclosure is characterized in that the at least four radial bearings have a common, integral bearing inner ring on which the rolling elements are arranged in rolling contact.

A monitoring system is proposed.

The monitoring system comprises a rolling bearing comprising a first ring and a second ring (7, 8) capable of rotating concentrically relative to one another, and at least one row of rolling elements (5) interposed between a first raceway and a second raceway respectively provided on the first and second rings, wherein: at least one of the rolling elements (5) of the rolling bearing is a sensorized rolling element comprises at least one sensor measuring at least one parameter of the sensorized rolling element and a wireless transmitter to transmit the measurements of the sensor, and wherein the system comprises: a receiving device (21) configured to receive the measurements of the sensor of the sensorized rolling element of the rolling bearing, and a processing device (23) configured to process the measurements received by the receiving device to detect damage and/or a contamination of the rolling bearing (2).

A thin section bearing assembly is for a gantry assembly and includes inner and outer rings each having inner and outer circumferential surfaces and rolling elements grooves and are each sized such that a ratio of the inside diameter to radial thickness is at least thirty (30). A plurality of rolling elements, preferably balls, are disposed between the outer ring groove and the inner ring groove. At least one elastomeric annular damper is disposed between the outer ring and the housing and/or between the inner ring and the rotor and has first and second axially spaced sections. As such, the first section is compressed more than the second section under bending moments in a first angular direction and the second section is compressed more than the first section under moments in a second angular direction. The one or more annular dampers each have a thickness calculated to optimize vibration reduction.

A system and method for monitoring the operating condition of a wheelset on a railcar comprising a sealed unit mounted on or near a wheelset of the railcar for collecting data from the wheelset and performing AI analyses on the collected data to determine the operational condition and predict failure modes for the wheelset. Results are communicated off-railcar wirelessly via one or more of several different methods.

A rolling bearing device for a mobility apparatus includes a first support, a second support, the first support and the second support being able to rotate with respect to one another. A first race that is able to be mounted fixedly in terms of rotation on the first support, and a second race is able to be mounted fixedly in terms of rotation on the second support. A damping device includes at least one elastic element disposed between the first support on one side and the first and the second race on the other side. The damping device also has a vibration dissipating member which is disposed between the first support and the elastic element, the vibration dissipating member being configured to dissipate the vibrations through shear.

A method of bearing fault detection including measuring a signal of torsional energy transfer from a rotating device to a non-rotating device at a distance away from the rotating device, calculating a health status of the rotating device based on a comparison of the measured signal to a baseline signal, and calculating a remaining useful life of the rotating device.

A sound reduction assembly includes a housing and a component supported via the housing. The component is movable relative to the housing. The sound reduction assembly includes a ring coupled to the component and the housing. The ring is configured to attenuate sound inducing vibrations in response to operation of the component. The ring includes a flange fixed relative to the housing to maintain a position of the ring relative to the component which maximizes attenuation of the sound in response to operation of the component. A method of utilizing a ring to attenuate sound inducing vibrations in response to operation of a component inside of a housing. A torque is selected to be applied to the ring. A stiffness of the ring is determined based on a stiffness-torque curve utilizing the selected torque to maximize attenuation of the sound. The ring is manufactured to meet the determined stiffness.

An apparatus for analyzing an element rotating at a rotational speed based on an vibration signal originating from the rotating element has: an analysis function processor for forming a plurality of analysis functions, the analysis function processor configured to form each analysis function based on an analysis frequency, on the vibration signal or on a measured or estimated rotational speed and on a predetermined order factor differing for each analysis function; a correlator configured to calculate a correlation result from the vibration signal and each analysis function, each correlation result being associated to the order factor which the analysis function, with which the correlation result was calculated, is based on, and the correlation results representing a correlation function; and an examiner configured for examining the correlation function or examining information derived from the correlation function so as to make a statement on a state of the rotating element.

A bearing assembly includes: a bearing; a pair of first vibration absorbing members each including a flexible part, an inner ring, and an outer ring, wherein the inner rings are fitted over the bearing in opposite directions along an axis; an annular second vibration absorbing member sandwiched between the pair of first vibration absorbing members in a direction along the axis to be disposed on a radially outer side of the inner rings, the annular second vibration absorbing member having a plurality of inner pin holes penetrating from an outer circumference of the annular second vibration absorbing member to an inner circumference thereof; and an annular holding member fitted over the outer rings and having a plurality of outer pin holes penetrating from an outer circumference of the annular holding member to an inner circumference thereof so as to respectively align with the inner pin holes.

A method for detecting damage in a bearing coupled to a rotating shaft of a rotary machine includes receiving one or more measurement signals from one or more first sensors for monitoring movement of the rotating shaft in one or more directions over a time period. The method also includes removing an effect of one or more environmental and/or operating conditions of the rotary machine from the one or more measurement signals over the time period. After removing, the method includes analyzing changes in the one or more measurement signals from the one or more first sensors, wherein changes in the one or more measurement signals above a predetermined threshold or of a certain magnitude are indicative of a damaged bearing. Moreover, the method includes implementing a corrective action when the changes in the one or more measurement signals are above the predetermined threshold.