GWJ Technology GmbH

Name: GWJ Technology GmbH
Address: Celler Straße 67-69, Braunschweig, 38114, DE
Telephone: +495311293990

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Deutschland
Braunschweig
GWJ Technology GmbH

Willkommen auf der offiziellen Facebook-Seite der GWJ Technology GmbH. Erfahren Sie hier mehr und besuchen Sie uns auf unserer Webseite http://www.gwj.de

26/08/2026

eAssistant Engineering Tip: Unknown Pressure Angle? Two Span Measurements Are All You Need.

When reverse-engineering existing cylindrical gear pairs or involute splines, you may know the gearbox and have several measurement values available, but the pressure angle is unknown.

With the new Re-Engineering function in eAssistant, the pressure angle can now be reliably determined directly from two span measurements. All you need is one measurement using the ideal number of teeth to span (suggested by the eAssistant calculation module) and a second measurement with one tooth more or one tooth less.

This provides an important geometry parameter quickly and reproducibly – creating a solid basis for the further reconstruction and redesign of involute gears.

The function is available directly via the calculator button next to the pressure-angle input field in the Single Gear, Cylindrical Gear Pair, Planetary Stage, and Involute Spline modules.

Practical tip: The pressure angle can be entered not only in decimal degrees, but also directly in degrees, minutes, and seconds. Simply click on the unit label.

Image: Original photo by Dirk Gräfe, Zahnradfabrik Kautz; modified by GWJ Technology. Used with kind permission.

12/08/2026

Don't Miss Any Updates!

With the new websites from GWJ Technology, eAssistant, and TBK software, it's now even easier to stay informed about our software solutions.

Stay up to date with our newsletter and receive:

- Product news and software updates
- Information on new features and standards
- Expert articles on calculation and drive technology
- Seminar and event announcements
- Tips for using our solutions more efficiently

Signing up takes just a few clicks. Simply choose the topics you're interested in, such as eAssistant, TBK, SystemManager, or GearEngineer, and receive the latest news directly in your inbox.

Sign up for the newsletter now: https://www.gwj.de/en/news-1/newsletter.html

05/08/2026

Trusted by engineers for over 40 years.

Since the early 1980s, TBK has been one of the pioneers in engineering calculation software for machine and gearbox design. With more than 40 years of experience, continuous development, and proven calculation methods, TBK remains a trusted tool for engineers, design engineers, and technicians around the world.

Its applications range from precision engineering to heavy machinery, from low-speed drives to high-speed turbomachinery operating at speeds of more than 500,000 rpm.

A particular strength of TBK is gearbox engineering. The software is used for the design and analysis of industrial gearboxes in the steel and cement industries, wind turbines, and test rigs for high-performance drivetrains, among many other demanding applications.

To reflect this legacy, our new TBK website is now live with a modern design, clear navigation, and comprehensive information about the software, its calculation modules, and application areas.

Discover the new website and learn more about a software solution that has stood for precision, reliability, and engineering excellence for more than 40 years.

Discover the new TBK website and learn more about over four decades of engineering expertise:

www.tbksoft.com

03/08/2026

Why should powerful engineering calculation software be complicated?

This question has guided the development of eAssistant for more than 20 years. As a web-based engineering calculation software solution, long before cloud applications became the industry standard, eAssistant has always pursued one clear goal:
Making complex calculation methods as simple and intuitive as possible to use.

Change an input value and the calculation is updated automatically and the new result is available instantly. With UNDO and REDO, design variants can be compared quickly and changes can be traced at any time. This saves valuable engineering time and keeps the focus on the actual design task. Whether shafts, bearings, bolts, springs, gears, or even complete gearbox system calculations, eAssistant supports engineers, designer engineers, and technicians worldwide in the efficient design, optimization, and re-engineering of machine elements: standards-compliant, powerful, and fully CAD-integrated.

To match the software, our new eAssistant website is now live: modern, well-structured, and packed with information about features, modules, and application areas.

Curious to learn more? Visit our new website and discover what has made eAssistant a trusted engineering solution for over 20 years.

www.eAssistant.eu

27/07/2026

GWJ Technology GmbH has launched completely redesigned websites for its eAssistant and TBK brands,as well as its corporate website. With this relaunch, the company introduces a modern, user-friendly design and optimized content that makes it easier than ever to access technical information and engin...

22/07/2026

Our new website is live!

For many years, GWJ Technology has been providing high-performance engineering calculation software for mechanical engineering and power transmission. With our new website, we want to make it even easier to discover what sets us apart: innovative software solutions, in-depth engineering expertise, and close collaboration with our customers.

From standard calculation software and specialised gear engineering solutions to custom calculation and configuration tools as well as engineering services, our new website gives you a clear overview of our complete portfolio.

With users in more than 45 countries across six continents, we develop solutions that prove their value in real-world engineering every day - true to our motto: "Developed by engineers. Proven in practice."

Explore our new website: www.gwj.de

25/06/2026

From Design to the Finish Line! 🏁

When digital models become real race cars: At the final race of the "RAO – Computer-Aided Design and Optimization" course, master's students from the and put their developments to the test on the racetrack. Adding a special splash of color this year was a bright pink race car – a real eye-catcher in the summer heat.

The final race provided the perfect opportunity to bring theory and practice together. The teams competed in exciting races, showcased creative engineering solutions, and impressively demonstrated their technical expertise.

Alongside the technology and competition, there was also time for personal exchange and networking. A shared barbecue in beautiful summer weather provided the perfect ending to the event.

Many thanks to Louisa Türke, Gunther Weser, Carsten Stechert, and the team from for their commitment, support, and excellent organization. It was a successful conclusion to the course – one that would not have been possible without their dedication.

22/05/2026

New ANSI/AGMA Load Capacity Calculation Added to Additional eAssistant Modules

Following the successful implementation of the new *ANSI/AGMA 2101-E25* edition in the eAssistant calculation modules “Spur Gear Pair” and “Planetary Stage”, the latest load capacity standard has now also been integrated into additional modules of the web-based calculation software eAssistant (www.eAssistant.eu).

ANSI/AGMA 2101-E25 is now also available in the modules “3- and 4-Gear Train” and “Rack and Pinion”, running in parallel with the previous ANSI/AGMA 2101-D04 edition as well as the established calculation methods according to DIN 3990, ISO 6336 for metallic spur gears, and VDI 2736 for plastic gears.

The updated modules are now available online for all eAssistant users, providing up-to-date and standards-compliant gear strength calculations for everyday engineering applications.

11/05/2026

Pushing the Limits of Involute Spline Design in eAssistant

The eAssistant involute spline module (www.eAssistant.eu) has been further enhanced. An improved interference check helps detect potential collisions at an early design stage, thereby reducing assembly risks.

In addition, the input range for the pressure angle has been extended down to 1°, which is particularly relevant for applications such as injection-mold tool design where manufacturing deviations must be considered.

Helical involute spline shaft and hub connections, while rather uncommon and not standardized, are used in specific applications. In eAssistant, they can be easily calculated using custom input. By default, helix angles up to 45° are available; if required, this range can be extended via an optional activation up to 89°.

With these enhancements, eAssistant further increases its capabilities for the precise and application-oriented design of involute spline shaft and hub connections.

25/03/2026

More Reliable 3D Gear Models - New STEP Export in eAssistant

Digital gear design does not end with calculation. It must seamlessly transition into CAD. The web-based software eAssistant from GWJ Technology now offers a significantly enhanced 3D STEP export for gears - designed to improve robustness, geometry validation, and flexibility.

Intelligent Geometry Validation Before STEP Export.

Before generating the 3D tooth geometry as a solid STEP model, eAssistant now automatically checks:

- Whether an undercut/root fillet intersection is present
- Whether a pointed tooth occurs
- Whether there is any flank interference at the tooth tip / outside diameter

And this is not limited to involute cylindrical gears. The validation is available for:

- External and internal spur gears
- Racks
- Involute splines (shafts and hubs)
- Straight and helical/skew bevel gears
- Spiral bevel gears

Even the complex 3D tooth geometry of bevel gears is checked prior to model creation. If geometry conflicts are detected, the software provides clear guidance on how to resolve them saving valuable iteration time.

In addition to solid models with a defined number of teeth, eAssistant also enables the export of a surface model of the tooth space profile. This surface model is generated without interference checks and can be used in any CAD system. This allows simple creation of gears - especially bevel gears - with arbitrary blank geometries by applying a boolean subtraction in your CAD system. So, complete gears can be generated efficiently and flexibly.

For users working with CAD systems where no dedicated eAssistant CAD plugIn is available, the new improved STEP export provides a powerful and practical alternative.

Adresse

Celler Straße 67-69
Braunschweig
38114

Telefon

+495311293990

Webseite

http://www.gwj.de/, http://www.eassistant.eu/, http://www.gearengineer.de/, http://www.tbksoft.com/, https://twitter.com

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