The video below is based on Application Bulletin 024 : Introductory Gear Equations. It covers the basics of meshed gears, including how to calculate gearing ratios. We've also discussed how to increase the gearing ratio, using compound gears to build a spur gearbox. So check out the short video, there are also captions available if you are unable to play sound!
If you have any questions please feel free to contact us to clarify!