Thanks Thanks:  0
Likes Likes:  0
Needs Pictures Needs Pictures:  0
Picture(s) thanks Picture(s) thanks:  0
Results 1 to 4 of 4
  1. #1
    Join Date
    Apr 2007
    Location
    Kalamunda, WA
    Age
    52
    Posts
    87

    Default Tough Drill Press RPM Table?

    Has anyone got an RPM table for thses machines that they would care to share. No idea what the model number is but it is 3 phase and has a GMF Craftsman motor on it if that helps.
    Attached Images Attached Images

  2. #2
    Join Date
    Jul 2006
    Location
    Athelstone, SA 5076
    Posts
    4,255

    Default

    not hard to work out ...just need to know motor speed ...usually 1440 or thereabouts

    Measure pulley od diameters

    that is all grooves on Motor pulley, intermediate pulley sizes and spindle sizes

    work out placement of belts

    and then work out ratios of each arrangement...multiply motor by ratios

    eg motor big step 4"
    intermediate small 2''

    Intermediate big 4"
    spindle small 2"

    (use OD where belt travels if belt sit deep inside V)

    therefore 4/2= 2

    assume motor speed 1400
    then 1400 x 2 = 2800 and 2800 x 2 + 5600rpm at spindle

    do that for each possible step

  3. #3
    Join Date
    Apr 2007
    Location
    Kalamunda, WA
    Age
    52
    Posts
    87

    Default

    Thanks and I know there are also calculators on the web that will do it but I was going the lazy option as I am pretty sure I have seen a printed label on some inside the belt cover.

  4. #4
    Join Date
    Sep 2008
    Location
    Riddells Creek, Vic.
    Posts
    831

    Default

    A cheap non contact digital tachometer from ebay would be the easiest way to measure the speeds, they are also very handy to have around.

Similar Threads

  1. Tough drill press
    By node105 in forum METALWORK GENERAL
    Replies: 17
    Last Post: 5th Jun 2013, 05:06 AM
  2. Tough Drill Press (gloat)
    By Bryan in forum METALWORK GENERAL
    Replies: 49
    Last Post: 1st Sep 2011, 12:06 AM

Tags for this Thread

Posting Permissions

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