Locktight on wheels

[ozzie46]

  What kind of clearance between axle and wheel bore should I have to locktight 5 guage wheels to the axles?  This is for my Simplex.

  Ron

[Lew_Merrick_PE]

What kind of clearance between axle and wheel bore should I have to locktight 5 guage wheels to the axles?  This is for my Simplex.

Ron,  I don't know what "5 guage wheels" are, but you want a slight clearance fit (call it LC-5 class fit) for loctite-type adhesives to work.  They need to expand as they cure -- so .002/.001 diametral clearance is about right for most things less than .50 inches in diameter.  Machinery's Handbook has a pretty good section on fits.

[ozzie46]

  Thanks for the response Lew. They are Model Locomotive wheels. I think it means the distance between the rails is 5in. The axles are .670 dia.

  I was using the term "locktight" generically as I seem to be able to find the permatex brand as sold by NAPA easier than the real Locktight brand. I have some permatex that is for sleeves and bearings and is supposed to be permenant after it has set up. Has anyone got any experience with this?

  Ron

[sbwhart]

Ron I used loctite on my loco 3 1/2" about 0.001" to 0.002 is fine. Use to have a lot to do with loctite at work (now henkel) the rep said they fix full size loco wheels with loctite using an interference fit.

Stew

[ozzie46]

   Thanks Stew, thats good to know. If it works for the bigguns it'll work for us.

  Ron