Gimbals and gimbal bearings are extensively used in components that are required to stay stable in unsteady conditions. These range from use in the NASA spacecraft engine gimbals, to shipboard applications such as the gyro compass and chronometers compensating for pitch, roll and yaw conditions. Gimbals and Gimbal Bearings Gimbals as we know them today…
During the process of selecting a material for engineering applications, their mechanical properties play a major role, which depend upon the components being manufactured and their utilization. Mechanical Properties, Tests And Procedures Mechanical properties are characteristics of materials that are revealed when that material is subjected to mechanical loading. There are standard tests and procedures that are…
PTFE is an abbreviation of Poly-Tetra-Fluoro- Ethylene and a white polymer with outstanding properties. The structure of molecules is round and looks like balls one over the other. Properties of PTFE PTFE has the lowest coefficient of friction of all solid materials ever known and does not show “Stick Slip” behaviour because the static and…
This article is based on the basic concept of ISO System of tolerance. We will discuss fundamental deviation, fundamental tolerance, and the calculation of tolerance according to the symbol used. Based on the ISO system of limits and fits of 1940, ISO Tolerances for holes and shafts is the most modern and most effective system…
Advanced automation today might have made metal processing work quick and at huge scales, but it didn’t fully replace a blacksmith’s role in the field. Blacksmiths still occupy an important and irreplaceable position. What tools do the blacksmiths use the most? We’ll learn it here. The list of tools explained below are typically and most…
Drive train vibration issues, if not treated in a timely fashion, can cause serious catastrophic damage to your gearbox. Do you know what the possible causes of the vibration issues are and how to get rid of them? Theory of Vibration ○ When a continuous exciting force acts upon a body and cause some repetitive motion…
Brushless DC motors (BLDC) are used where there are limitations in the use of the brush-type DC motors. In this article we discuss how it is possible operate a DC motor with no brush arrangement and also explain the back EMF in a brushless DC motor (BLDC). A DC motor is a one which operates…
Whether installed on a ship, factory, or in the local supermarket, all piping needs to well supported and vibration free. Pipe supports can incorporate springs to reduce vibration, however there are numerous other designs of specific vibration eliminators that can be fitted to the pipework. Piping runs require careful alignment through the proper use and…
Moving huge weights used to be a big challenge for workers, which led to the invention of lifting machines. These well calculated, efficient mechanisms well allowed us to forge ahead into today’s modern industrial world. Let’s learn about a few of these intelligent mechanical tools. Machines for lifting weights were basically invented for making the…
A mechanical drafting machine is used as a conventional method of producing an engineering drawing used in many offices and industries. A drafting machine is installed on an angular arm or beam that can be secured on the table permanently. In this era of advanced workstation PCs and computer aided drafting and manufacturing (CAD-CAM), a…