Replacing My Ac Motor With A 2.25 Hp 90vdc

use the mc 60 controller, that motor will draw to many amps for a aftermarket one. As for the pulley size i had a 10" atlas and i ran direct to the pulley on the spindle, next to the largest, around a 4", and the motor pulley was around a 1 1/2".
 
check out the "wiring up a treadmill motor" thread below this one which should answer most of your questions. i ground a flat on the shaft and used a set screw. if you don't use the flywheel you'll need to rig up a fan of some sort to keep the motor cool. a 2:1 pulley ratio would work well but don't go below 2" on the motor pulley as the belt will struggle to wrap around it.
 
I've been considering using one of the flat belts that have seven , eight or more grooves in the inside face for that's what was on out lawn mower it didn't slip till my lass tried to modify some concrete withe thing whilst cutting the lawn.
I've found a company in the UK that has them in all manner of lengths and number of grooves etc.
Are these sort of belts good to drive our bespoke man cupboard machinery or are they too flimsy for most things ?
 
Round in circles said:
I've been considering using one of the flat belts that have seven , eight or more grooves in the inside face for that's what was on out lawn mower it didn't slip till my lass tried to modify some concrete withe thing whilst cutting the lawn.
I've found a company in the UK that has them in all manner of lengths and number of grooves etc.
Are these sort of belts good to drive our bespoke man cupboard machinery or are they too flimsy for most things ?
Click to expand...
My 2hp compressor uses one. Works fine as long as it is accurately aligned and not fouled.
 
a polley v belt has got a lot more griping surface than a v belt, you can buy them on e bay, but they are not the same as a automotive. Check out the configuration of the thread mill, that is what you need, it is a (j) not a k.
 
Thanks guys.
Kern ,

I've clocked that there was a " J & K " grouping .
Can you point me to an information sheet about these type of belts.

The lawn mower replacement belt I've just replaced was like for like in the part numbers , so no probs there.

The belt I took off the vibrating massager is just over 15mm wide and nearly 600 mm in circumference & has nine or ten ribs on it .It also has a " J " in the numbers .

The idea that you can have much smaller pulley's because of the greater surfce are friction grip under less tension appeals to me , as hopefully they will be easier to turn on the lathe.
I guess putting a spring and shouldered bearing mounted roller type tensioner on the back of the belt could also be very effective in keeping a slight tension on the belt rather than having to pull the motor etc apart to get the tension , that could save a lot of space as well .
 
just google j & k poly v belts, all the info you will need, or go on eBay samething
 
I have a 1/2in link belt on its way from HF for my lathe and drill press - the v belt was struggling to wrap around the smaller pulley and the join was causing a lot of vibration. Hopefully the link belt will work better. Would be an easier option than a poly V belt unless you're hoping to transmit alot of torque.
 
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