Results 1 to 5 of 5

Thread: 1000 Rpm motor

  1. #1

    1000 Rpm motor

    Hello could a 1000 rpm motor be used and remove the jack shaft fore a 1 chain system ?

    if so what hp would be needed an what shaft length and buy chance what would the gears size need to be ?

    thanks

    randy

  2. #2
    Join Date
    Nov 2001
    Location
    Expendable Goons, Cheap!
    Posts
    3,314
    That would be prohibitively expensive.

    Base speeds are multiples of 60, because we get 60 Hz AC current.

    Now, if I can draw parallels from industrial motors (which I work with),

    Base speeds is called "2 pole" which gives you 3600 RPM

    Then you have "4 pole" which gives you 1800 RPM

    6Pole = 1200
    8Pole = 900

    Thing is, as you add more poles your price and size tends to go up significantly.

    Then to get 1000 RPM, you'd have a 6 pole motor + a converter to change your frequency from 60 Hz to 50 Hz.

    That doesn't even touch the required torque values.

    So back to the beginning: It's far more cost effective to run a faster motor with a reduction system of some sort.

  3. #3
    Join Date
    Oct 2000
    Location
    Chicago
    Posts
    5,948
    There are motors in the range of 1000 rpm but all the ones I found required external cooling. The compressor pistons run at about 200 rpm so you have to gear it down to that. The original proto in the video is running with a 1k motor and a single chain.

    Tom

  4. #4
    Quote Originally Posted by oldironaz
    Hello could a 1000 rpm motor be used and remove the jack shaft fore a 1 chain system ?

    if so what hp would be needed an what shaft length and buy chance what would the gears size need to be ?

    thanks

    randy
    would a universal blower fan motor work ??? 1080rpm 115v 1/3 hp

  5. #5
    Join Date
    Oct 2000
    Location
    Chicago
    Posts
    5,948
    Yes that is what I was using but it needs an external fan. Those are called "air over" motors because they rely on the fan they are driving to cool the motor. If you use a belt drive it will get very quiet.

    Tom

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •