Okay, probably a dumb question, but can anyone advise of safest way to fit a pulley?

copydex · 17th June 2009, 05:05 PM

I have a Maxon motor and a press fit pulley to go on it, just wondered about the best way to do the 'press fit' part?

cyclotronguy · 17th June 2009, 07:15 PM

In general, I typically heat the pulley to expand the bore and drop it over the shaft.

If you must press, you must do it in such a way that you press straight, with even controlled pressure and not transfer the thrust through the bearings.

Cyclotronguy

copydex · 18th June 2009, 08:12 AM

Thanks. Searching around the net I have found references to heating the pulley in the oven and cooling the motor in the freezer, so will maybe give this a try.

Jules · 23rd July 2009, 08:37 PM

Hi Copydex,
which Remax are you using is it the 226764 as
mentioned by Mark Kelly ?
or 226779 ?

I'm fitting a new motor to my Oracle Delphi and I'll be running it from a bench supply until I make a better motor supply.
I got a mate to turn me a motor pod from a lump of oak.
Regards, Jules

17th June 2009, 05:05 PM	#1
copydex diyAudio Member Join Date: Nov 2008	Okay, probably a dumb question, but can anyone advise of safest way to fit a pulley? I have a Maxon motor and a press fit pulley to go on it, just wondered about the best way to do the 'press fit' part?

17th June 2009, 07:15 PM	#2
cyclotronguy diyAudio Member Join Date: Sep 2001 Location: Northern California	Pulley fit In general, I typically heat the pulley to expand the bore and drop it over the shaft. If you must press, you must do it in such a way that you press straight, with even controlled pressure and not transfer the thrust through the bearings. Cyclotronguy

23rd July 2009, 08:37 PM	#4
Jules diyAudio Member Join Date: Apr 2002 Location: Wales u.k.	Remax ? Hi Copydex, which Remax are you using is it the 226764 as mentioned by Mark Kelly ? or 226779 ? I'm fitting a new motor to my Oracle Delphi and I'll be running it from a bench supply until I make a better motor supply. I got a mate to turn me a motor pod from a lump of oak. Regards, Jules

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18th June 2009, 08:12 AM	#3
copydex diyAudio Member Join Date: Nov 2008	Thanks. Searching around the net I have found references to heating the pulley in the oven and cooling the motor in the freezer, so will maybe give this a try.

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