Grinder Motor

morning

Charles,

They are definately balanced complete with flat pulley (holes in end of armature iirc) but how much difference it'll make I don't know. Why not have the puffed motor rewound. A rewind & new bearings will be much the same price as a new motor but you'll preserve the balance and it least know it'll fit.

If you are running quasi 3-phase I'd want to look closely why the smoke was let out - do you have a rather high wild phase perhaps on your converter?

AWEM

Some guy was selling tins of smoke on eBay, so that you could top up whatever you let the smoke out of....

Steve

Not around here it won't. Rewind is £120 to £150, new motor is £60 to £80

Good point.

-- Regards,

John Stevenson Nottingham, England.

Visit the new Model Engineering adverts page at:-

I had a 1/2 hp drier motor rewound last week @ £85 - Peak Ignition of Thornton Heath. They are a special in that they are a long shaft motor but otherwise a normal resilent mounted jobby.

Peak Ignition,

The Hall, Hythe Road,

Thornton Heath,

Surrey,

CR7 8QQ

AWEM

Good point. Voltages are 385-385-450 a bit high but IMHO not high enough.

Charles

Charles,

A daft thought I know but a voltage spike of 70 volts would to me induce an amount of imbalance in the motor and cause it to warm up. By the way how's the saw going.

Martin P

Normally they only go down in the stator, so the armature balance wouldn't be affected on a rewind. A wound armature would be a bit unusual in a smallish motor.

Peter

-- Peter & Rita Forbes Email: snipped-for-privacy@easynet.co.uk Web:

The saw is fine - I can heartily recommend a Kennedy hacksaw as a useful small saw.

Charles

Steve has noticed ..................

Yes Steve, but it was very special Joseph Lucas loom smoke! You don't get a lot of that for a pound these days.

Mike