ac capacitor VS run capacitor 2

[jarvis]

I need a 4mf capacitor for a small motor. I have a 4mf capacitor that came from an old power supply. It looks just like a motor run capacitor and is rated for more than what I need. Is there any difference between an ac capacitor and a motor run capacitor? Can I use this? Thanks for any help you can give.

Ben Englund

 

[jarvis]

Thanks for the information, it probably is the bearings.

Ben Englund

 

[busbar]

In a real pinch, engine-oil additive in the bearing felt may buy a little time.

 

[jbartos]

Comment: The sleeve bearings are used where a proper lubrication is available, the expected life-cycle is tolerable, expenses to be minimized, etc.