Hey All,
I'm trying to slow down a motor via belt and pulley (lighter, cheaper, etc..). The problem I'm running into is that I'm trying to achieve a high ratio (i.e. 20:1, 30:1) and the best differences between 2 pulleys that I have been able to find are 5:1 - 7:1 between sdp-si.com and mcmaster.com. I'm just wondering if anyone has come across a similar problem and decided to use multiple pulleys or have found the proper products some where?