Gallery, Projects and General > How do I??
Does squirel cage AC motor survive shaft removal from rotor?
PekkaNF:
aargh...got two motors and both are hard to modify:
1) Finnish made botor that apparenty has the rotor shrunk supertight (maybe used residula heat from aluminium casting).
2) Italian motori is a two piece design..Back bell is integral with shell.
Has anybdy modified AC motor bearings to angular contact bearings?
Pekka
PekkaNF:
--- Quote from: PekkaNF on September 14, 2015, 03:22:46 PM ---aargh...got two motors and both are hard to modify:
1) Finnish made botor that apparenty has the rotor shrunk supertight (maybe used residual heat from aluminium casting).
2) Italian motori is a two piece design..Back bell is integral with shell.
Has anybdy modified AC motor bearings to angular contact bearings?
Pekka
--- End quote ---
motor #1 flunked on insulation tester...one phase very low on 500V, low voltage measurement does not indicate anything too special. Bridges are off ie. coils are floating. This was the one that mechanically would disassemble easiest and would modification, but rotor is a bit of mystery.
Connection box has quite a bit of rust in there. I spayed it with first rust remover oil and CRC product I got my hands on. Then tipped it upside down, maybe it's just some gunk on connection box?
Motor #2 is nice and works, but can't work on it. It's awkward size and shape.
Probably should buy new italian motor and try it.
Pekka
PekkaNF:
Motor #1 is a toast. Turned out that rust was not a conductor...it was an insulator.
All toasty inside. Now question about rotor on that motor is purely academic. Have to lug it around a bit, need a big press to coax it out, I don't care now how it survives.
Pekka
Navigation
[0] Message Index
[*] Previous page
Go to full version