Mechanical degradation by shear is one of the mechanisms that limits life-time lubricating grease in a rolling bearing. It results change micro-structure thickener–oil system, leading to bleed and consistency. The resistance can be quantified using worker. In this article, novel approach described, where worker used measure rheological properties situ, while aging grease. energy pressure losses...

Cu-based self-lubricating materials can effectively adapt to complex natural environments and ensure consistency in used for switch transitions. These were tested through interface reinforcement research, improving their mechanical tribological properties providing a theoretical basis new slide baseplate materials. Results showed that the coefficient of friction wear weight loss decreased with ...

Anti friction bearings in process pumps, by design, frequently utilize oil sump lubrication technology. For many years, it was an accepted condition that the lubricating oil used in oil sump bearing lubrication needed to be changed on a regular basis to prevent high levels of contamination that can lead to premature bearing failure, contributing to equipment downtime. Often, the indicators used...

Although lubrication is necessary for the satisfactory operation of rolling bearings, effect lubricant on fatigue life bearing has not been sufficiently studied. In recent times, theory elastohydrodynamic (EHD) [1] used to explain different effects lubricants. According this theory, thickness lubricating layer separating moving elements determined by viscosity-pressure dependence lubricant. The...

Despite many advantages, hydrodynamic bearings tend to induce nonlinear vibrations on rotor systems at low external loads. The occurrence and also the amplitudes of these are very sensible operating conditions system such as gaseous cavitation, oil viscosity (strongly dependent temperature), bearing clearance (dependent metal temperature thermal expansion coefficients) or imbalance. This contri...

The evolution of the film thickness in a grease lubricated rolling bearings is given by continuous process loss and replenishment oil track. It believed that long run, maintained bleeding from reservoirs. capabilities thus have an impact on and/or bearing life. ability to bleed changes during operation due mechanical ageing, which affects fiber structure grease. In this study lubricating consid...

Self aligning spherical journal bearing is a type of plain bearings which has spherical surface contact. This type of bearing can accommodate a misalignment problem. The journal bearing faults degrade machine performance, decrease life time service and unexpected failure which are dangerous for safety issues. Surface vibration (SV), airborne sound (AS) and acoustic emission (AE) measurements ar...

This paper describes the testing of Profiled Steel Sheet Dry Board (PSSDB) load bearing wall system. Experimental tests were conducted on various PSSDB wall samples, with and without infill materials to study its effect on the PSSDB load bearing wall performance. A proprietary profiled steel sheet, Ajiya Cliplock (0.48 mm thick) attached to Cemboard (10 mm thick) on one side, and Cemplank (10 m...