Design Flex® Pro™
Design Flex® Pro™ is Gates’ free drive design software that provides a quick, accurate and flexible method of correctly designing belt drives. The user-friendly software allows you to design a drive with a few clicks, and get every optimised drive solution that fits your design parameters. At the same time, the Design Flex® Pro™ drive calculation provides the detailed belt pretension data for use with Gates deflection or sonic tension meters. Download now! (free, registration required)

Click here to download it.

Design Flex® Pro™ WEB version also available!

Technical service
Country Languages spoken Phone number
Spain      +34 93 877 7032
France     +33 1 34 47 41 33
Germany   +49 241 5108 288 or 240
Poland   +48 60 83 54 854
Russia   +7 495 933 83 78
UK +44 1387 24 20 49
Design Flex® Gates' industrial drive design software now available online
Gates' Design Flex® is a Windows based drive calculation program allowing the design of belt-drive systems with increased efficiency and enhanced performance in less time. This powerful software is now avalailable to you for free over the internet.
Design Flex® : updated version now online!
Now included: PowerGrip® GT3, Poly Chain® GT Carbon™ and Quad-Power II upgraded power ratings. Problems with Windows XP SP 2 Integrated solved.
Fast and easy

Design Flex® offers a step-by-step drive calculation procedure for both V- and synchronous belts based on the criteria and/or limitations specified by the user. By means of an easy to follow menu, two pulley drives are calculated and multiple drive design solutions are generated.

Design Flex® lets you save your drive results, so you can easily build an electronic library or immediately e-mail your design without the need for printing and faxing.
Design criteria include:
  • Service life
  • Initial cost of drive
  • Number of belts - size of drive
  • Required parts and more
Who qualifies?
Because Design Flex® is a professional-grade design tool it is intended for design engineers and others who are well versed in drive design.
Download it now!

The program offers a step-by-step drive calculation procedure for both V-belts and synchronous belts based on the critera and/or limitations specified by the user. Design Flex® runs under Windows 95, 98, 2000, NT, Millennium, requires a Pentium 133 processor or higher and an 800 x 600 screen resolution or higher. A minimum of 32 MB RAM is recommended for satisfactory calculation speed.

To download your free copy of Design Flex® simply click here to go to the sign up page now. After registering at Gates.com/europe we will notify you via email with instructions on downloading the program.

Register Now to Download Your Copy of the Gates Design Flex® program.
Mobile version
The mobile version of our Design Flex® software has arrived! This web application is available for all mobile devices with internet access at /DFMobile. It's fast and easy to design a 2-point drive with multiple synchronous and V-belt solutions that fit your parameters. You can email the solution – as well as the DFPro source file – to yourself or your customer. Need to know proper tension for a known drive? DFMobile can help with that, too!