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Thread: Pully size

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  1. #1
    Member
    Join Date
    Nov 2019
    Posts
    2

    Pully size

    I have a linear actuator that has a stroke of 18 inches. I need to double that with the use of pullies.
    Not sure how to accomplish that.

  2. #2

    Re: Pully size

    https://www.pinterest.com/pin/672232681852220936/

    Picture 2. Replace the weight with the linear actuator. If it moves 18'' the ''S'' will move 36 inches
    Jim Dawson
    Sandy, Oregon, USA

  3. #3
    Member
    Join Date
    Nov 2019
    Posts
    2
    Hey, that's perfect thanks.
    I have a follow-up question
    If I increased the size of the lower pully would that increase the speed of the top pully or just the distance the hook will move
    Last edited by trickyrick; 11-18-2019 at 04:57 PM.

  4. #4

    Re: Pully size

    Yes, the rotational speed of the top pulley would increase by the ratio of the pulley sizes.
    Jim Dawson
    Sandy, Oregon, USA

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