... to investigate the lubrication performance of the DT worm drive during meshing and provide a theoretical basis for understanding the elastohydrodynamic lubrication ( EHL ) characteristics. Design/methodology/approach An EHL model of the DT worm drive is developed based on the gear geometry...

...Mustafa Yilmaz; Ali Önüt; Thomas Lohner; Karsten Stahl Purpose This paper aims to address the influence of lubrication methods on operational characteristics, power losses and temperature behavior of gears and bearings. It contributes to the improvement of resource and energy efficiency of geared...

...Andreas Schwarz; Martin Ebner; Thomas Lohner; Karsten Stahl; Kirsten Bobzin; Tobias Brögelmann; Christian Kalscheuer; Matthias Thiex Purpose This paper aims to address the influence of diamond-like carbon (DLC) coatings on the frictional power loss of spur gears. It shows potentials for friction...

...Fritz Klocke; Christoph Broeckmann; Christoph Löpenhaus; Alexander Bezold; Tim Frech; Marko Hajeck; Philipp Scholzen; Christian Gebhardt Purpose The purpose of this study is to optimize high-strength gears produced by powder metallurgical process and to provide a material model to predict...

...Christian Brecher; Christoph Löpenhaus; René Greschert Purpose Boundary layers, which develop during manufacturing and operation, can protect tooth flanks from metal-to-metal contacts. The characteristics of boundary layers and the running behavior of gears are determined by the preconditioning...

...Martin Zimmer; Dirk Bartel Purpose The purpose of this paper is to determine parameters for an efficient running-in of gears and an improved method for the prediction of the tooth flank load carrying capacity. Design/methodology/approach In this contribution, a model for the calculation...

... Nanotribology Carbon nanotubes Gears Greases Development in the field of nanotechnology has led to the growth of carbon nanoparticles as lubricant additives. Nanomaterials have attracted great attention in various research fields because of their unique physical and chemical properties. Nano...

...Zhimin Fan; Wanfeng Zhou; Ruixue Wang; Na Wang Purpose The purpose of this paper is to derive a new lubrication model of double involute gears drive and study the effect of the tooth waist order parameters of double involute gears on lubrication performance. Design/methodology/approach The new...

...Guan Wen; Youhua Ge; Dai Zhendong; Zheng Gao Purpose – The purpose of this paper is to investigate that if the lubrication system of a helicopter reducer is compromised, its gears and bearings will be at non-lubricating oil work state, which causes the reducer to be damaged in a very short time...

... © MCB UP Limited 2002 --> Ford Gears Ford Motor Company in the USA checks gears with a GearScan 500 manufactured by Stresstech Keywords: Ford, Gears Ford Motor Company has implemented a leading edge technology for the quality control of their gears. This inspection...

...Sven Berg Aims to use some of the sampling techniques and sampling routines, mentioned in Part 1 of the article, to perform practical tests to determine their differences in withdrawing samples. Uses two different types of systems, a hydraulic system and a gear system, together with some...

...Bill Wilson Reports in improvements in the gear industry since 1993, and provides details of six projects carried out by the British Gear Association and the Gear Research Foundation. Briefly discusses the Navy and Vickers Gear Research Association research and the work of the Technical Committee...

...Bill Wilson External and internal gear, duocentric and sliding vane oil pumps used in internal combustion engines are illustrated and described briefly. © Company 1995 Engines Gears Oils Pumps Vane FEATURES Oil pumps Bill Wilson External gear pumps (Figure 1) are still widely used...

...Bill Wilson Details the increasing use of BP polybutene hydrocarbons as clean, non‐polluting lubricants or viscosity index improvers for two stroke engines, compressors, metalworking fluids, gear and hydraulic oils and greases. Shows polybutene’s compatibility with mineral and synthetic oils...

... limits. © MCB UP Limited 1994 Analysis Condition monitoring Debris Engines Ferrography Gears Turbines Wear FEATURES Wear Debris Analysis Group (1982-84) In February 1982, the inaugural meeting of the Ferrography Users Group was held at the Institution of Mechanical Engineers...