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Gates Design IQ Software

This program provides a blank slate for designing multi-point and complex serpentine belt drives. Utilizing a specific Gates product that you have identified, as well as your drive specifications, the software will calculate:

  • belt tension
  • shaft load
  • belt length
  • and more

Download Gates DesignFlex Software
Download your copy now.

Products Included in Design IQ



Synchronous Belts






Super HC®

3V, 3VX, 5V, 5VX, and 8V

Singles and PowerBands


Poly Chain® GT®  Carbon™

8mm and 14mm

Hi-Power® II

A, B, C, and D

Singles and PowerBands


Poly Chain GT®2

5mm , 8mm, and 14mm

Hi-Power II Dub-V



PowerGrip® GT2

2mm, 3mm, 5mm, 8mm and 14mm


3VP, 5VP, 8VP, and CP


PowerGrip Timing

MXL, XL, L and H


AX, BX, and CX


PowerGrip HTD®

3mm, 5mm, and 20mm

Polyflex® JB®

3M, 5M, 7M, and 11M

PowerGrip® Twin Power®

3mm, 5mm, 8mm, 14mm, XL, L and H


J, L, and M

For Help Designing Drives or anything else!

Click Here for Known Design Flex Software Problems and Solutions

Contact us if you would like help from Gates Product Application Engineers or a Gates Distributor in designing the most efficient V-belt and synchronous belt drives for your needs. Send us an email at or simply call 303-744-5800.


Design IQ Software System Requirements
Design Flex Pro and/or Design IQ should run on the following Operating Systems in both 32 and 64 bit modes:
  • Windows XP SP3
  • Windows Server 2003 SP2
  • Windows Vista SP1 or later
  • Windows Server 2008 (not supported on Server Core Role)
  • Windows 7
  • Windows Server 2008 R2 (not supported on Server Core Role)
  • Windows 7 SP1
  • Windows Server 2008 R2 SP1
  • The person installing must be a member of the Administrators group with true administrator rights or have Security Center settings which raise his rights to true administrator while performing installations.