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Recently acquired Atlas 10100 lathe
- Thread starter fmradio516
- Start date
- Joined
- Dec 25, 2011
- Messages
- 10,511
Catalog says that the 4-step motor pulley is 5/8" ID. Since those are decidedly un-common and all of the rest of what should have come from the factory is still there, I think that it is safe to assume that. Of course it would be a trivial exercise to just measure it.
Also, if the ads give the Frame Type or Number, the three that are probably the most common on single phase AC motors these days are 48, 56 and 56C. The 48 has a 1/2" dia motor shaft or shafts. The 56 and 56C have a 5/8" dia. shaft. The 48 and the 56 have a side mounting plate. The 56C mounts with 4 bolts screwed into the shaft end concentric with the shaft. Some 56C's will mount both ways. There are a lot of other variables, such as how the wires connect, but most of these variables are visible in photos of the motor.
Also, if the ads give the Frame Type or Number, the three that are probably the most common on single phase AC motors these days are 48, 56 and 56C. The 48 has a 1/2" dia motor shaft or shafts. The 56 and 56C have a 5/8" dia. shaft. The 48 and the 56 have a side mounting plate. The 56C mounts with 4 bolts screwed into the shaft end concentric with the shaft. Some 56C's will mount both ways. There are a lot of other variables, such as how the wires connect, but most of these variables are visible in photos of the motor.
- Joined
- Sep 22, 2020
- Messages
- 8
Can anyone confirm or deny if this pulley on the left is the pulley I need or do I still need another pulley? I found an Armstrong 1010L tool holder in a drawer full of metal punches 
so thats one thing I dont need to go buy at least..
Edit: it is not fixed and is able to slide up and down to pickup slack.
so thats one thing I dont need to go buy at least..Edit: it is not fixed and is able to slide up and down to pickup slack.
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- Joined
- Dec 25, 2011
- Messages
- 10,511
The Atlas MK2 6" takes three pulleys. They are the 4-Step motor pulley that is shown upper left in a photo that you posted Sep 22, 2020 at 1:38 PM.
The second is the single-step pulley shown in the photo posted today. Which incidentally, besides being able to slide up and down and be locked at any location, it should also slide freely in and out so that it can be positioned in line with any one of the 4 steps on the other two pulleys.
And the third is the 4-step spindle pulley also shown in today's photo.
The second is the single-step pulley shown in the photo posted today. Which incidentally, besides being able to slide up and down and be locked at any location, it should also slide freely in and out so that it can be positioned in line with any one of the 4 steps on the other two pulleys.
And the third is the 4-step spindle pulley also shown in today's photo.
- Joined
- Sep 22, 2020
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- 8
Can anyone tell me if this motor will work? Could pick it up for $40. Thanks!
- Joined
- Sep 24, 2020
- Messages
- 1,907
He could use the pulley that is on it to make a bushing for the factory pulley.
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- Sep 24, 2020
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that has the same specs as the motor on my SB 9.
- Joined
- Dec 25, 2011
- Messages
- 10,511
The nameplate data is as follows:
Line i
Model number (info (doesn't mean anything to me but you could probably find it somewhere)
1/3 HP
60 CPS
Line 2
1725 RPM
115 VAC
5.6 Amps Full Load
Line 3
50 deg C
Continuous
don't know
line 3
don't know
Single phase
don't know
don't know
I didn't see the frame number which is probably 48.
After making one change and one test, if your 2-step motor fits the motor shaft, it should work OK. The one change is that you should replace the 2-wire cord with a 3-wire. The one test is to measure the resistance from each of the two wires currently going to the 2-pole plug to the motor frame. Reading should be open. Or above 5 megohms. If your motor pulley fits the shaft, OK. If it doesn't, as Jim F said, use the existing pulley to make an adapter. Or if you got the 2-step pulley from Clausing, they should have included a 5/8" x 1/2" sleeve.
Line i
Model number (info (doesn't mean anything to me but you could probably find it somewhere)
1/3 HP
60 CPS
Line 2
1725 RPM
115 VAC
5.6 Amps Full Load
Line 3
50 deg C
Continuous
don't know
line 3
don't know
Single phase
don't know
don't know
I didn't see the frame number which is probably 48.
After making one change and one test, if your 2-step motor fits the motor shaft, it should work OK. The one change is that you should replace the 2-wire cord with a 3-wire. The one test is to measure the resistance from each of the two wires currently going to the 2-pole plug to the motor frame. Reading should be open. Or above 5 megohms. If your motor pulley fits the shaft, OK. If it doesn't, as Jim F said, use the existing pulley to make an adapter. Or if you got the 2-step pulley from Clausing, they should have included a 5/8" x 1/2" sleeve.
- Joined
- Jan 2, 2019
- Messages
- 6,539
Honestly I would pass on that motor, it's considerably older than the lathe so not "period correct" and likelyhood of bad bearings or out of balance is pretty high. If you're cheaper than me (and that's pretty cheap) just search Craigslist until an old treadmill comes up "free" and strip the motor from it.
I just bought one of these for my mill/drill and it looks like it'll do the job nicely.
John
View attachment IMG_9101.MOV
I just bought one of these for my mill/drill and it looks like it'll do the job nicely.
VR-600 Brushless Industrial Sewing Machine Servo Motor - 600 Watts, 220 Volts | eBay
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John
View attachment IMG_9101.MOV