Assessment of surface quality in electromobility

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Low-noise gears for electric drives

A closer look at the surface condition of the tooth flanks, especially the waviness, is becoming increasingly important in electric drives with regard to noise behaviour.

80 % reduction in measurement effort
for waviness analysis with KAPP NILES

The waviness analysis of the tactile measurement is used to evaluate the grinding process and the noise behaviour of the gear. This enables you to determine the cause of deviations due to upstream process steps and evaluate workpieces on the basis of definable tolerance curves.

For series-accompanying, random sample quality assurance, the KN gear-waviness software option for order analysis is integrated directly on KAPP NILES measuring machines and enables an immediate analysis automatically.

In addition, the measuring effort can considerably be optimised by a reduction of measured teeth compared to an all-tooth measurement. With KAPP NILES measuring machines and the integrated waviness evaluation, you can ensure low-noise gears for electric drives – precisely and efficiently.


"KN gear - waviness for KAPP NILES measuring machines"

  • The waviness analysis in gear testing and why it is crucial for e-mobility
  • The calculation method and analysis in shortened time for process optimisation
  • The test methods for NVH in the process chain
  • The advantages of KN gear - waviness and how it can help you to increase your product quality

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"Particularly with the varying and constantly increasing requirements for transmissions of electrified vehicles, it is always impressive to see how profound the knowledge of KAPP NILES is in this area. Here, the expertise goes far beyond the limits of the grinding machine, which is a prerequisite for understanding current customer requirements and translating them into a grinding process.“

Dr.-Ing. André Wagner - Head of Grinding Technology | Hermes

„Together with KAPP NILES, we were able to work on a number of interesting research projects on the hard fine machining of gears. The highlight was certainly the integration of the polishing process directly on the gear grinding machine - which is now indispensable for a wide range of applications in the field of e-mobility."

Prof. Dr.-Ing. habil. Carsten Heinzel | Leibniz Institute for Materials Engineering (IWT) & University Bremen

"E-mobility needs high-precision gears, high precision gears need high precision diamond dressers and for high precision dressers we have KAPP NILES!"

Baocheng Feng - Tool Management Manager | Shuanghuan

"KAPP NILES is an invaluable partner in realising the complex gear tooth geometries that are needed for race and hypercar transmissions. We use their experience and support in both the profile and generate grinding technology for gears of the highest quality for quiet operation and for durability."

Martin Halley - Production Engineering Director | Xtrac

"E-mobility projects are very easy to realise with KAPP NILES. KAPP NILES is a competent supplier for e-mobility and offers top quality for every application."

Jürgen Kempf - Head of Technical Application Consulting and Sales | König MTM

"Manufacturing engineering is major key to economically and ecologically balanced powertrain production. KAPP NILES supports production-based innovation in FVA giving impulses and know how for innovative and up-to-date research projects. On the other hand KAPP NILES is lead applicator of FVA research results to set the pace for excellent production equipment and machines."

Dipl.-Ing. Christian Kunze | FVA (Research Association for Drive Technology - Support Association MOBIMA e.V.)

"KAPP NILES gear grinding machines have a reasonable layout, smooth automation system and excellent rigidity. After decades of years of advancement and optimisation, they have always remained in the first front of worm gear grinding machines. In particular, the KX 300 P and KX 260 TWIN models continue to provide excellent stability and efficiency in the grinding of e-mobility gears, providing a good machining experience for the user."

Wu Youxiang - Manufacturing Engineering | Shuanghuan

"We completed long test runs of the gearbox with the development department. This resulted in change requests to the process and the tools, which always had to be implemented under time pressure. I had a contact person at KAPP NILES at all times - even at weekends if things had to be done quickly. This meant that we had a new batch of prototypes in the shortest possible time with which we could go to the test stand. KAPP NILES helped us a lot during the prototype phase of our new development for a fully electric transmission for a super sports car and was always an optimal partner for us."

Roberto Di Geronimo - Competence Leader Gears & Gauges | FPT

"Highest quality through first-class cooperation: With KAPP NILES we realise a large number of innovative clamping solutions for gears. An absolute win-win situation with maximum benefit for our joint customers."

Thomas Hübl - Head of Key Account | Hainbuch

"The investment in a KAPP NILES gear grinding machine was the basis for our competence development in gear hard machining. With the flexibility of this machine, we can map all current research topics in gear grinding around e-mobility."

Carsten Hochmuth | Fraunhofer IWU, Chemnitz

„With KAPP NILES we started the demanding topic of e-mobility gears at a new production site. We got perfect support for the package consisting of gear grinding and measuring machine.“

Elias Häggström - Director of Gear Technology | LEAX

Optimise your gears for e-drives.

Discover the benefits of partnering with KAPP NILES and learn how our technologies can advance your business. Contact us today to learn more about our customised solutions for finishing gears in e-mobility. Together, we are leading the way to sustainable and future-oriented mobility. Trust in Technology with KAPP NILES!

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Markus Reißenweber
Head of Sales Europe & America

+49 9561 866-1340

"I will be pleased to show you how to increase your manufacturing potential in the field of e-mobility with KAPP NILES."

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