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  1. #21
    mark thomas is offline Titanium
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    Quote Originally Posted by kustomizer View Post
    I have four home built polishing spindles that use a quarter turn belt drive, the pulleys are 3 inch on the motors and 4 inch adjustable on the spindles, the spindles and shafts are about 16 inches apart. They have 2hp motors automotive belts 1/2 wide, they are about 5 years old and run a couple of hours each most days. I haven't replaced any belts or pulleys yet. Hope this helps.
    Do you have any pics?

  2. #22
    mark thomas is offline Titanium
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    I tried it out. Seems to work just fine. Although in the textbooks it says the axes should be offset slightly toward lining up on the drive side, in my test they are on center. Even the though the belt is coming in on the pulley at an angle that would be gross misalignment (~5 degrees) in a normal setup, I don't see any untoward side effects. I ran it for half an hour and checked belt and pulley temp and they were barely over room temp.



    (note the mill has nothing to do with this, it was just a convenient place to bolt things to for a test)

  3. #23
    kustomizer's Avatar
    kustomizer is offline Hot Rolled
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    I imagine we could, or you could stop by and play with them
    pm me

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