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  1. 27-09-2013 #6
    Jonathan's Avatar
    Lives in Leicester (Home) or Nottingham University (2nd Home), United Kingdom.
    Jonathan
    Last Activity: 05-04-2020 Forum Superstar, has done so much to help others, they deserve a medal. Has been a member for 9-10 years. Has a total post count of 3,571. Received thanks 325 times, giving thanks to others 8 times. Referred 1 members to the community.
    The width depends on what you're doing, but in general 15mm wide is fine. If it's a long belt then increasing to 25mm is a good idea as it will raise the stiffness.

    By longer I think you mean the width of the pulley? If so, you generally just want pulleys which are nominally the same width as the belt. In reality the pulleys are slightly wider, so there is some clearance between the belt and pulley flanges. The main thing is to make sure the pulleys are aligned axially, so the belt isn't rubbing against the flanges.

    P.S. There are many threads discussing this on the forum.
    Last edited by Jonathan; 27-09-2013 at 12:56 PM.
    Old router build log here. New router build log here. Lathe build log here.
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