Page 2 of 2 FirstFirst 12
Results 16 to 17 of 17
  1. #16
    Join Date
    Sep 2010
    Location
    Lebrina
    Posts
    1,910

    Default

    Quote Originally Posted by Sparksy View Post
    Another way is to lay a nice high current arc weld along the length of the boss. That shaft definitely looks like a previous pulley has spun on it especially as you noted the keyway fell out.
    I would think twice before using that method. It will work if and I do stress IF you are very confident that you can pull the pulley off before the weld cools and contracts. If you cannot achieve this, then you will be left with a pulley that is actually tighter than before. Welds always contract more than they expand.
    A better method that utilises the same principle is to heat the boss with either Oxy Acetylene or Oxy Propane (perhaps straight propane may suffice if the burner is large enough), the trick is large tips/burners and get the heat in quickly. You want the boss as hot as possible and the shaft as cold as possible.
    The weld bead method does however make removal of bearing cups from internal bores like child's play.

  2. #17
    Join Date
    May 2011
    Location
    Melbourne
    Posts
    33

    Default Another idea

    I hesitate to suggest this approach for freeing something as large as this, but for releasing stuck smaller components I have had good results with Loctite's Freeze and Release spray: https://www.repco.com.au/en/oils-flu...10g/p/A9328441

Page 2 of 2 FirstFirst 12

Similar Threads

  1. removing elec motor fan
    By bollie7 in forum METALWORK GENERAL
    Replies: 22
    Last Post: 15th Oct 2019, 07:49 PM
  2. Waldown 4 Step Motor Pulley
    By Anorak Bob in forum METALWORK - Machinery, Equipment, MARKET
    Replies: 3
    Last Post: 19th Nov 2018, 03:57 PM
  3. Ways to remove stubborn set screw in motor pulley?
    By Gunnaduit in forum METALWORK GENERAL
    Replies: 90
    Last Post: 27th Jul 2018, 05:50 PM
  4. Removing Mill Motor
    By electrosteam in forum METALWORK GENERAL
    Replies: 7
    Last Post: 10th Jul 2010, 09:54 AM
  5. Motor twin pulley dimensions ???
    By bitza500 in forum THE HERCUS AREA
    Replies: 2
    Last Post: 29th Nov 2008, 04:43 PM

Posting Permissions

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