Elastomeric bearing sizing analysis Part 1: Spherical bearing

Analysis, Design, and Control of a Novel Elastomeric Bearing Positioning Stage

Abstract: As products are required with higher precision, vibration control becomes more important for precision machining and inspection. A stage with both fast positioning and relative vibration eliminated can improve product quality. Elastomeric bearings are widely used in the seismic engineering and precision machining fields. By utilizing their stiffness anisotropy, miniaturized bearings c...

Design and Characterization of an Aerostatic Spherical Bearing

An aerostatic spherical bearing has been developed for parallel kinematic machines. The design is based on a ball and socket configuration and is preloaded by permanent magnets arranged about the socket. High pressure air is injected through three orifices into the cavity between the ball and socket to produce a low friction, high accuracy interface. Joint accuracy is measured using a coordinat...

A Study of Deficiencies in the Bearing Capacity Analysis

A Study of Deficiencies in the Bearing Capacity Analysis

Rolling Bearing Fault Analysis by Interpolating Windowed DFT Algorithm

This paper focuses on the problem of accurate Fault Characteristic Frequency (FCF) estimation of rolling bearing. Teager-Kaiser Energy Operator (TKEO) demodulation has been applied widely to rolling bearing fault detection. FCF can be extracted from vibration signals, which is pre-treatment by TEKO demodulation method. However, because of strong noise background of fault vibration signal, it is...