spindle run out

[Nicholas FarrParticipant @nicholasfarr14254]

Yes, you could say the balls and rollers can rattle thier cages.

Regards Nick.

[KWILParticipant @kwil]

Commercially available inner race heaters are no doubt expensive, might be a project sometime?

[Anonymous]

Hi KWIL,

 

Home induction heating has been done, see the following link:

 

http://www.richieburnett.co.uk/indheat.html

 

I did find a US webpage where you could buy a small induction heater for home use, but stupidly I didn’t bookmark the page. And I’m damned if I can find it again. If I do, I’ll post a link to it.

 

Regards,

 

Andrew

[Nicholas FarrParticipant @nicholasfarr14254]

Hi Kwil, yes they are a bit pricey, you need to have to use them quite frequently to justfy thier cost. The company I used to work for only had a few bearings that where required to be headed prior to mounting. When I first worked there as a lad, this was done using a flame. Not a good way of doing it at all. When I became Skilled in my own right, I made a simple heater from a piece of 8″ black pipe, welded a plate on the bottom put three legs on it, made a platform out of half inch wire mesh which would fit inside the pipe off the bottom and could be lited out easy. The pipe was the half filled with light gear oil and a small propane gas space heater was then placed underneth to heat it. I borrowed a thermometer from out of the lab and it is was then easy to heat the bearing uniformly to the specified temp. This method is a bit long winded and slippery but it worked with great success and without damage and pretty temp coulors on the bearings. The modern approch is to use induction heaters, but a themostat controlled heating cabinet can be used, and would be more affordable for infrequent use.

Regards Nick.

[Author]

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