Contact pressure distribution in bearings is determined by micro-geometry of the contact surfaces, related axial and radial loads and by misalignment between shaft and housing, while especially cylindrical and tapered roller bearings are very sensitive for misalignment which can be caused by both initial manufacturing deviations or by elastic deflection due to operation conditions. In most applications, loads and misalignment can hardly be influenced why optimization of micro-geometry is very important for reaching proper contact pattern without any critical pressure peaks and thus providing sufficient lifetime of the bearing.

By means of finite-elements-method, contact pattern due to operational loads and deflections can be assessed which allows discussion of different concepts for micro-geometry. Subsequently both optimized geometry can be determined and influence of tolerances can be estimated. Based on that, detailed specifications for micro-geometry can be developed for each particular bearing and application.

As optimization based on sophisticated simulation of each particular case is very expensive, in a second step, a simplified method has been developed which allows transferring of results from one case to a family of similar applications. Subsequently, micro-geometry of roller bearings can be controlled by reasonable effort and precision which is sufficient for a broad spectrum of applications.

Currently, our company is moving into new facilities in Liebigstraße 15, 52070 Aachen. Now, 400 m² shop floor and 270 m² offices are available to us.

In August 2012, Elgeti Engineering GmbH became member of Forschungsvereinigung Antriebstechnik FVA.

“In just two years, Elgeti Engineering has carved a vibrant niche for itself in the field of damage diagnosis ans component testing. …”

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Dipl.-Ing. Hagen Elgeti, MBA is going to talk on the 7th Career Planning Colloquium of the Aachener Turnerschaft Rheno-Borussia. The subject of his presentation practical experience concerning roller bearings.

This colloquium takes place once a year and should help the attending students to organize their studies and to start their professional career. For this purpose, specialists and executives from university and industry are going to share a part of their professional experience.

To allow a broad exchange between generations and faculties, the KPC is a public event while the participation is for free.

A new radial bearing test rig type EELPRA-130 is available. This test rig is equipped with two test rig and is suitable for testing of radial bearings up to 130 mm outer diameter.

Today, an axial bearing test rig type EELPAX-310 (see specification) has been delivered just in time to a German customer. As a special feature, this test rig has been designed and equipped for high temperature testing significantly higher than 200°C. Apart from that, temperatures of inner and outer rings can be measured simultaneously.

In March, Elgeti Engineering successfully introduced powerful software and hardware for numerical simulations by means of Finite Elements Method.

Elgeti Engineering is now offering to develop, manufacture and deliver test rigs for bearings, lubricants and other machine elements according to customer specification.

Apart from individually optimized special solutions which are precisely matched to customer needs, the proven standard types can be purchased as well.

Yesterday, the complete team of Elgeti Engineering participated at Lousberglauf in Aachen. Our best runner on these 5555 m was Alexander Mertens who finished after 22:35.