I bought this to pair with a 90vdc 1/4HP 2.5 amp 1725rpm motor for my mini lathe. It took about two minutes to hook up and it seems to work well, it has good torque at low rpm. I am measuring 81vdc out of the box and with the pulleys I have it is scary fast. I ran it for about 20 minutes and so far have had no issues. Good product, fast delivery and a fair price. What more could you ask for. Thanks!