Drill press electric motor

[Rod N]

I bought an old Beaver drill press and when I plugged it in there was clicking and then smoke came out of the motor. Now nothing.

To replace the motor are all 1/2 hp 7250 RPM the same? it looks like it is a popular size for furnaces.

 

[shawhite]

7250 RPMs seems a little high to me but I’m not familiar with that exact DP model. Just match up the data on the name plate. Frame size, open or enclosed, RPM, HP.

 

[lilredex]

Look for a 1725 RPM motor, lots on KIJIJI in the $20-30 range. Pictured is the 3/4 HP motor I put on mine. Stay away from the 3450 RPM units....too fast for a DP.

 

[Packard V8]

Most furnace/dryer/utility 1/2hp motors are resiliant mount sleeve bearing with 1/2" shaft.

Because DP motors mount vertically, the recommended power is a ball bearing motor which has no end play. It will take a while to wear out a sleeve bearing motor, but they're not best science.

Also, many DP drive pulleys are 5/8" shaft. Since you have no motor, you didn't mention having a drive pulley. Try to source a drive pulley having close to the same diameter steps as your driven pulley. It's not critical, just makes changing speeds easier.

Hint: since you'll be buying a motor, consider going 3-phase with a VFD; they're the cat's-*** for DP power - infinitely variable speed with no changing belt positions.

jack vines

 

[seber]

Check the frame number. Most likely 56 but it could be 48. They don't play well together.

 

[Rod N]

I found the service manual and my original specs were out to lunch.
1/3 hp
ball bearing
60 cycle, 1725 rpm

 

[Rod N]

Plates on motor are missing.

 

[Rod N]

Will this work or is it a sleeve bearing motor?
?

 

[seber]

It is a light duty motor. The fact that it requires oil seems to indicate sleeve bearings. In any case, special duty means short life.

 

[Rod N]

Not suitable for a drill press?

 

[67carl]

Not suitable for a drill press?

I can't answer your question but I'm also dealing with a DP motor search. This thread is very helpful;

Craftsman Drill Press

Appreciate the quick reply! I'll keep looking. I mis-stated the rpms…it was correctly stated in the post following mine. But glad to help steer you away from the wrong purchase

www.garagejournal.com

 

[Maui]

If you need a drill press motor (or a motor for practically any other machine) here’s my ad for American built electric motors for vintage machines:

American Built Electric Motors for Vintage Machines - tools - by...

I have dozens of vintage electric motors for sale that range in size from 1/150 horsepower up to 5 horsepower, and the majority of them are single phase motors. I have some 3 phase motors and some...

rochester.craigslist.org

I will ship, but shipping charges are high and it may not be worthwhile to you.

Maui

 

[lilredex]

Looks like a furnace fan motor or other.... It will be OK for a home owners DP. You probably won't log more than 3-4 hours a year. Oil it up and run it for a few minutes, install and in a year's time, lay it over and add your ten drops. Use 3-in-1 oil in the blue can. Relax, it will be fine.

I have used that type of motors on various things, for fifty years, including several DP's without issues.

 

[Packard V8]

It will turn the spindle. Just don't invite any GJ buds over to admire your work. Even if you're providing the beer, one of them will be sure to give you shite about using the wrong motor.

jack vines

 

[PoorUB]

It will work fine for a small drill press.

My preference would be to have an enclosed motor, but if I had that one laying around collecting dust i would use it.

 

[The Cobbler]

as others have said, it will work fine for sometime.

 

[Milton Shaw]

I adapted a 2 speed washing machine motor for my drill press, now I have 6 speeds. That comes in handy for metal drilling. Plus it was already set up for vertical use.

 

[Rod N]

I'm looking for a plug n play. I've only ever used 1 speed. lol
All of the used motors are making my head spin.
Lots of people out there have old motors that are un tested and they want $50 for them.

 

[seber]

It's really easy to check a motor. Bring a cord with you with alligator clips or crimped rings.

 

[Davefr]

I'm looking for a plug n play. I've only ever used 1 speed. lol
All of the used motors are making my head spin.
Lots of people out there have old motors that are un tested and they want $50 for them.

The motor in your #8 post will work fine. It's not perfect but guys have been using replacement furnace and washing machine motors for years. A drill press is usually a low duty cycle tool. Instead of buying a new 1/2" step pulley you can probably just buy a 5/8" to 1/2" adapter sleeve and use your old pully if the bore doesn't match.

I've never heard of a Beaver DP but if it's a high end DP, then go the 3 phase/VFD route.

 

[lilredex]

Here ya go, an old Canadian made tool Co.

Beaver Power Tools, Callander Foundry - Photo Index | VintageMachinery.org

 

[lilredex]

If you do as Seber suggests, bring a fused power strip with you so you don't fry the motor, by just blindly poking around.

 

[Davefr]

Here ya go, an old Canadian made tool Co.

Beaver Power Tools, Callander Foundry - Photo Index | VintageMachinery.org

Those look pretty cool. (Like old Deltas.) I'd go 3 phase/VFD if it's a keeper.

 

[Rod N]

It's really easy to check a motor. Bring a cord with you with alligator clips or crimped rings.

I'm a bit Leary because I plugged the old one in and it went up in smoke. lol

 

[seber]

Let the seller hook it up and prove it works.

 

[Rod N]

Check the frame number. Most likely 56 but it could be 48. They don't play well together.

The slots on the drill press frame are 5 1/2" wide center to center and 4 1/2" high.
Would this match either of those frame numbers?

 

[Davefr]

The slots on the drill press frame are 5 1/2" wide center to center and 4 1/2" high.
Would this match either of those frame numbers?

Electrical Motors - Frame Dimensions

Electrical motors NEMA frame dimensions.

www.engineeringtoolbox.com

 

[Rod N]

Electrical Motors - Frame Dimensions

Electrical motors NEMA frame dimensions.

www.engineeringtoolbox.com

If I wasn't confused before, I am now.
Looks like the motor I need does not come with big enough spacing for the bracket.
Explains why my blown motor has a bracket welded to it and the only other one I've seen had a wood block between the motor and drill press.

 

[Rod N]

I'm seeing lots of 1/2 HP motors and my manual calls for a 1/3 HP.
Any chance of messing up my drill press with the larger HP?
Same 1725 rpm

 

[bubinga]

I'm seeing lots of 1/2 HP motors and my manual calls for a 1/3 HP.
Any chance of messing up my drill press with the larger HP?
Same 1725 rpm

I don't think 1/2 hp is too much.

 

[exmaxima1]

I'm seeing lots of 1/2 HP motors and my manual calls for a 1/3 HP.
Any chance of messing up my drill press with the larger HP?
Same 1725 rpm

Nope, all that matters is that you don't exceed the original speed and that it fits your pulley. BTW, a nice upgrade would be a 1140 rpm motor---you get lower spindle speeds for drilling metals and using hole saws. I put one on my Wilton (USA) drill press and now it spins down to around 280 rpm. Of course a 3-phase motor with VFD would be even better, but that would cost alot more (my motor was free)

 

[Rod N]

I'm finding I can buy a used drill press that comes with a motor, pulley, belt etc. for the same price as a used furnace motor. It would be a shame to scrap it after I took the parts though.

 

[bubinga]

consider a tread mill motor and controller,
sometimes, you'll get lucky and find a 56 frame motor that bolts right up.

 

[Rod N]

consider a tread mill motor and controller,
sometimes, you'll get lucky and find a 56 frame motor that bolts right up.

I've heard this before, but every picture of a tread motor for sale doesn't look like anything that would suffice. Might need an electrician too, lol

 

[bubinga]

I've heard this before, but every picture of a tread motor for sale doesn't look like anything that would suffice. Might need an electrician too, lol

Naw, It's easy,

 

[Rod N]

^^^ I wish he had pictures of the motor.

 

[bubinga]

Let me see if I can find one on my PC I know I don't have it on my phone of the one that I used.
I can't promise but I might even have some controllers for sale if I have them here they might be in storage though I'll try to dig a picture up later.

 

[bubinga]

My motor was quite similar to this one on eBay this should bolt right on if you remove the flywheel it even had a 5/8 shaft, I would check with the seller to be sure if he even knows?

Wanrui 2.25 HP XTERRA TR150 DC Drive Motor WA147 D9080003 G080304B | eBay

PART REMOVED FROM A NEW SYSTEM.

www.ebay.com

 

[Rod N]

Interesting. I guess I would need the analogue controller, which means I need to buy the whole thing.
Lots of $50 treadmills out there but you can't see the motor mounts in the ads.

 

[bubinga]

No, you can't see the motor.
I got lucky and put an add on craigslist, and got mine free. Used the controller from the treadmill too.