Identify Motor with odd shaft

[steele6707]

Attached is a picture of a motor I bought at a Habitat Re-Store. It is made by Westinghouse and the nameplate indicates it is 1/3 hp, 1000 rpm, 115 v, 60 cycle, single phase, 4.6 amps - Model # C1021142-1. The direction is reversible and I am not sure about the duty cycle. The nameplate says "HRS. INT. " I plan to use it for about 10-15 minutes at a time to spin a hub with magnets mounted to the hub (magnetic tumbler for small jewelry pieces). The shaft is 1/2" exiting the housing and then is machined to resemble four twisted strands. I would like to attach a die cast aluminum hub to the shaft. The hub has a hole for a 1/2" shaft with a set screw.

What might have been the original use for the motor and why the odd shaft? A search of the model number and a search of the Westinghouse site did not yield any meaningful results.

Thanks - Don

 

[steele6707]

Picture of the motor

Thanks - Don

 

[berkshire]

That shaft looks like a multiple start worm gear drive.
Was this possibly used on some kind of reduction gear?
B.E.

You are judged not by what you know, but by what you can do.

 

[MikeHalloran]

Nah, that's not a worm.

I'd call it a helical spline.
Since the motor is reversible, I'm guessing that the spline fits into a complementary hub that slides/is driven axially in different directions depending on the rotation direction, and then engages some kind of friction clutch, or maybe a dog face clutch, in an assembly where the thrust is mostly self-contained, not reacted through the motor bearings except while changing state. It's the sort of motor I'd expect to find in a washing machine.

Just clean the spline, overmold it with a filled epoxy, and machine the result down to 1/2" diameter, by running the motor and filing the epoxy down until it fits nicely into the pulley you have. Always stop the motor before fit checking.



Mike Halloran
Pembroke Pines, FL, USA

 

[dArsonval]

The motor is basically a shaded pole blower (air over) motor with a shaft intended to mate with some type of gear box.
The device will not have much starting torque, and likely drove a relatively "light" load in its original OEM application.
A flow of air past/through the motor will allow it to run continuously.
Any kind of load other than "light" will drag the device down.
Study the performance attributes of a Shaded Pole motor, and you'll have a pretty good idea of what to expect from this device.

John

 

[waross]

uh Reversible shaded pole motor are very rare. It requires two shading coils, both connected through contactors. I have never seen one or seen a listing for one. I have seen two shaded pole motors on one shaft, one motor for forward and one motor for reverse.
The common method of reversing a shaded pole motor is to take it apart, reverse the stator, and reassemble it.

Bill
--------------------
"Why not the best?"
Jimmy Carter

 

[dArsonval]

Bill, you're exactly right about what's typically required to reverse a shaded pole motor.
Despite the name tag photo being blurry, it looks like a direction arrow indicating
clockwise rotation (as viewed from the shaft end) just above the words "thermally protected".
With the wiring diagram being blurry, it's difficult to note its meaning.
(Is it a switch, a run capacitor, duel voltage connection? etc.)
I still suspect it's a shaded pole motor given the motor's construction style/appearance.
A better photo of the paper name tag would be more revealing.

John

 

[steele6707]

Thanks for the responses. I will post a better pic of the nameplate tonight - camera skills not the best. I believe the motor is reversible by interchanging the blue or red leads with the line side (white to neutral - brown not used) There is some verbage about a capacitor and I will look at that tonight also.

Thanks - Don

 

[lukin1977]

We used to have a crane with the motor´s shaft like that
When the motor is energized the helical spline disengage a friction clutch to elevate the load and when the motor was off the load weight engages the friction clutch to hold it in place ... or something like that

lukin1977

 

[jraef]

A trick on photos like that: open them with a picture ap and play around with contrast and brightness settings, even revering to a negative image, you can often make out additional details.

Right above the "Thermally Protected" line is a Cap. #, which is unreadable, but indicates this is a cap start motor, not a shaded pole. The cap does not appear to be attached, which also lead me to believe shaded pole, but on OEM equipment like washing machines, they would often put the cap somewhere else, and instead of a centrifugal switch it may have used a potential relay. But that shaft is definitely the type used on old washing machine motors. In Rev, it engaged a clutch that would spin the drum, in Fwd is when it extended the shaft to engage the pump, saved them from using two motors.

"Will work for (the memory of) salami"

 

[Compositepro]

I believe Mike is correct. It is a helical spline. By reversing the motor it causes a pinion gear to slide to the other end and engage with a second set of gears. This can be used for simply changing speeds or to drive two separate things sequentially using one motor. This could be out of an old Zerox machine. It could also be from a washing machine used to change from wash to spin cycle.

 

[steele6707]

Attached is another picture of the nameplate. The capacitor info is 54 mdf /250 volt. I have not applied any voltage to the motor yet. It was marked as tested at the Habitat Re-store. The wiring diagram diagram has the colors listed as red, blue, brn, & white with the line voltage going to the white and either the red or blue - the brown is not used. It sounds like I need to go to a motor shop and see what additional parts I need to be able to use this. If that pans out - I will take Mike's advice and use epoxy to round out the shaft for my hub.

I really appreciate everyone's comments.

Thanks - Don

 

[ScottyUK]

Another trick with the camera to get a useable image, especially with flash, is to increase the physical distance from the camera to the object and use the zoom function to enlarge the object. It makes life easier for the A/F and reduces the white-out caused by a flash in close proximity.