shaft spinner

will8834

will8834

Adcock Cues
Silver Member
I have a motor set up to spin shafts but I am trying to figure out a set up for a chuck to attack to the motor shaft. Anyone eveer do this if so what did you do and can you post a pic.
thanks will
 
You can buy just a simple jacobs chuck pretty cheap, and depending on the type of motor shaft you have, there are several ways to mount it. I think I have seen decent keyed chucks for $10-$15 at HF and Grizzly, or keyless for $50-$60. Most are either threaded, or a morse taper, but I have seen straight shank with a keyway as well.
 
What's your budget, and what kind of chuck are we talking about? A drill chuck or a lathe chuck?
 
I want to mount a drill chuck to the motor. The chuck i have is threaded but the shaft on the motor is round with one side flat for a set screw.
 
will8834 said:
I have a motor set up to spin shafts but I am trying to figure out a set up for a chuck to attack to the motor shaft. Anyone eveer do this if so what did you do and can you post a pic.
thanks will
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I have been looking to do the same thing. Check Mcmaster-Carr. They are pretty must the last stop for any part you'll ever need. www.mcmaster.com

Brian
Nittany Leather
 
It might be easiest to couple the motor to a drill chuck using a pulley arrangement. Chucks typically have a (female) Jacobs taper (JT). They mount on an arbor with a male JT (or threaded) on one side , and a Morse taper or straight shank on the other. Get a straight shank arbor and run the shank in a couple of bearings with a pulley on the shank in between the bearings. A matching pulley on the motor, a little belt / O ring, and spin away. As an additional benefit, you could adjust the speed somewhat using different sized pulleys.

I've never seen a drill chuck arbor with a hole/set-screw to slide/lock onto a shaft ... even in McMaster-Carr. I mean what ID would you bore the hole at ? It would cost more to make as it cannot be simply ground between centers, and it would have a limited market. I don't think they exist.

JMO

Dave
 
DaveK said:
It might be easiest to couple the motor to a drill chuck using a pulley arrangement. Chucks typically have a (female) Jacobs taper (JT). They mount on an arbor with a male JT (or threaded) on one side , and a Morse taper or straight shank on the other. Get a straight shank arbor and run the shank in a couple of bearings with a pulley on the shank in between the bearings. A matching pulley on the motor, a little belt / O ring, and spin away. As an additional benefit, you could adjust the speed somewhat using different sized pulleys.

I've never seen a drill chuck arbor with a hole/set-screw to slide/lock onto a shaft ... even in McMaster-Carr. I mean what ID would you bore the hole at ? It would cost more to make as it cannot be simply ground between centers, and it would have a limited market. I don't think they exist.

JMO

Dave
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I've never seen one either, but anyone with access to a metal lathe could make an adapter rather easily. You could really even make an adapter with just a drill press!
 
I did something like this a long time ago, and while it wasn't the greatest thing in the world, it did get me through for a while. I took my motor to a machine shop along with the drill chuck and just had them turn it and thread it. Shouldn't cost a huge amount, I think I was charged like $15.
 
magnetardo said:
I've never seen one either, but anyone with access to a metal lathe could make an adapter rather easily. You could really even make an adapter with just a drill press!
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Yes, you can make one rather easily, but with all the cantilevering and tight machining it's pretty easy to get a wobble or two (especially if you tried to make it using only a drill press using drill bits). If the bore for either the motor shaft or the arbor shank is larger than a sliding fit (we're talking tolerances in the +- 0.0005" range here), by the time you get out to the working end it's wobble city ! Heaven forbid you get both bores a couple thou too big.

Dave, been there, done that, tossed the things in the ever-growing pile o' scrap ... of course this could just be a hack machinist problem :o

<edit> OK, another idea would be to run a straight-shanked arbor in a pair of bearings, and couple the end to the motor using an adaptor ... that would take care of the wobble problem too
 
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will8834 said:
I want to mount a drill chuck to the motor. The chuck i have is threaded but the shaft on the motor is round with one side flat for a set screw.
Click to expand...

Normally with a threaded drill chuck, you have to mount it on a threaded stud that's meant for a drill. It will have normal threads on the outside, and reverse threads for a small flat head screw on the inside. That way, it's locked in both directions.

If you're hellbent on mounting that threaded chuck to a motor shaft, you've got some modications to be done that it sounds like will be more trouble than you're thinking. This is what the Shaftmaster is like, I believe.

IMO, for direct drive on a shaft motor (tell us what kind of motor you're using), you can ... have an arbor made to mount on the shaft, and then glue a rubber cane tip on it. I actually tried this out, but the shaft didn't spin squarely so make sure you have a motor that's stout enough and spins nice and squarely (no runout).

A bunch of us have made the kind of spinner tool describe above with the cane/seat tip, but usually it's held in jaws of a chuck. Prototype Shaft Spinner

Fred
 
I looked at grainger's website and msc's website, they both carrry an adaptor that you can bolt a chuck on a motor shaft. they are around 5 bucks.
 
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