Nwg

I'm not an authority on this, but here's my humble opinion;

I dont like the fact it doesnt have a keyed shaft, and the RPM's are way too fast.
I dont think it could be hooked up to a speed control unit, but I could be wrong.
A one horse power motor is on the bottom end of the power scale for grinding....you should use a minimum of one and a half horse.
 
I vote with Eric on this, let this one pass. The speed, as mentioned is too fast, though that could be corrected with pulleys selected to step down the speed. That will restrict you to a single speed; you couldn't even use a step pulley with it. The big problem is that it was designed to go with a certain pump. The shaft was intended to thread into something not have anything slipped over it and held in place with a set screw in the key slot. Fitting a pulley will present a problem. I also think that you underestimate the problem of mounting that motor. That was designed to bolt to a rigid housing. You will need to cut a heavy plate of steel with a proper hole for the shaft to stick through and drill it to accept bolts and figure a way to hold it rigid at a right angle to the mounting table which might. Unless you have the tools and materials to do that with, it would probably mean a trip to a machine/welding shop. In the end you will spend more money making this thing work that it would to buy a motor off the shelf and you still would only have one with minimal power. I think that there's a reason that the seller is only asking $75 for it, it's not something that could easily be converted to a use other than what it was made for.

Doug
 
I let that one pass and found a few more with 1.5 hp. They don't have all the info needed to make a decision but maybe you guys could help me narrow it down and then I could seen the sellers a message and get the missing info from them.
Here are the links:
http://www.ebay.com/itm/330585798920?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

http://www.ebay.com/itm/130719963240?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

http://www.ebay.com/itm/280899720979?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

http://www.ebay.com/itm/170859561617?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

http://www.ebay.com/itm/390435180684?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

http://www.ebay.com/itm/330585798920?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

If none of those are suitable for the build then I'll keep looking... I'm in no rush and rather build this thing right the first time so I could last me a few years then.
 
Just some things that I would look for if I were you:

Stay away from 3 phase motors unless you plan on buying a VFD to run the thing, (or unless your shop is powered by 3 phase or you have a rotary phase converter).
A VFD or a rotary phase converter is going to set you back about another 4 to 500 bucks for a decent one.

If you're going for a step pulley setup, you'll want a single phase motor. I'd also stay away from anything less than 1.5HP for a 3 to 4 wheeled maching like a NWGS. 2 HP is even better.
As for RPM, you probably don't want to go any higher than 1800RPM if you can help it, assuming you're using a standard 4" drive wheel. Also make sure that the shaft will accept your step pulleys (usually 1/2" or 5/8", though 3/4" might work as well)

Try to stick with a TEFC motor as well. (Totally Enclosed Fan Cooled) This will keep your dust and shavings from getting in the motor and shorting it out.

Also be sure to get a 110/220 Volt motor based on what you have in your shop.
 
The first one is three phase so no.
the second one looks like the ticket. You will need to connect the seller to make is it C/CCW able meaning it canbe wired clockwise and counterclockwise. The motor plate is too fuzzy to make it out but I bet it is able to do that. It appears to be both from the wiring diagram. You want counterclockwise. You can also use a clockwise motor but it takes more room on you bench is all unless you go under the bench.
 
It says reversible in the title of that second one so maybe that means it is C/CCW able but I will make sure I ask before I bid on it... Thanks for the help. I'll let you guys know how this goes
 
So I kinda spaced out and was only able to throw up one bid for that motor... It was unfortunately not the winning bid. So I tried looking for more and even looked at some local places and so far only one place replied and told me they can order one for 350$ :( Guess I have to keep looking
 
I can send you a 1.5 hp 1800 rpm or 3600 rpm single phase TEFC motor for $247.50 with free shipping.

Or if you want to make your grinder variable speed the VFD for $448.00 and the 3 phase motor $247.50 both with free shipping.
 
Daffy, prices like that are part of the problem of living in the big city or, in your case, The Big City. One of the reasons that I moved back to the Mid West when I retired. Just couldn't afford the prices around Norfolk, VA. We have an agriculturally oriented hardware store around here where I could get a 1.5hp 1800rpm single phase TEFC motor for just a little less than what Wayne sells it. At least it was the last time I strolled down that isle, browsing. It's also nice to live in a city where you can get to just about anywhere in 15 minutes and rush hour is from about 5:05 to 5:25, though it's kind of hard to notice.

Doug
 
I would think that being close to such a large city you'd be able to find at least a couple of surplus motor dealers and/or someone that deals in used motors and rewinds.
 
Yea trying to do things on a budget in the city is hard but I'm trying my best. I actually for a motor for under $100. It is an A.O. Smith thats 1.5 hp, 1725 RPM, 15 amps, 115v, 5/8" shaft, 1PH, reversible and TEFC. The only thing that confuses me about it is that it is a type CP I'm not sure what that is lol

John
 
So I went to look at my motor and try to get it up and running an realized I have no clue whats going on in there... Anyone able to help and give an explanation on how I wire it and connect it to a switch? :confused2:
 
Daffy said:
So I ended up grabbing it for $90 and it arrived today. This is a pic of the motor plate and a link to the auction
http://www.ebay.com/itm/330759572338?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Hopefully I did good... Just need the rest of the parts now
View attachment 33562
Click to expand...
twist the black, white and yellow together with the black wire of your power cord.
hook the yel w/blk to the white wire of your power cord.
twist the brown, red, and orange together
use wire nuts for each.
Hook the green wire of your power cord to the frame of the motor (probably a green screw in the wiring box.
If you need to reverse the direction of rotation reverse the red and black.

If you want a switch hook the switch to the black wire then hook the black, white and yellow to the other side of the switch.
 
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