Strange Retaining Ring on Motor Shaft - Unable to remove bearing

[dalmatiangirl61]

No! You can't go use his hot tub after he fixes it....

Just letting him know I have NOS motors like that, just in case he decides that one is too far gone.

 

[4GSR]

Just letting him know I have NOS motors like that, just in case he decides that one is too far gone.

What frame size are the motors? I have a money pit swimming pool here that goes through motors about every three years here. I'll have to check the frame size I need.

 

[dalmatiangirl61]

What frame size are the motors? I have a money pit swimming pool here that goes through motors about every three years here. I'll have to check the frame size I need.

MagnaTek/Century, M4BY frame, 3/4hp, 3450 rpm, threaded shaft. PM for more info/pics

 

[guythatbrews]

Are you going to sleeve the shaft? Seems like I turned mine down to 3/8 and loctited on a 303 ss sleeve. It's been running that way for years.

 

[true temper]

Tell us about that strange retaining ring that was holding the bearing on, I don’t think there was one on it. If there was one on it I wasn’t seeing it.

 

[metalmagpie]

I have seen a strange retaining ring made of a couple of wraps of spring steel on edge, so it winds up like a washer. You have to pry out an end and then unwind it to get it off the shaft.

I would dunk the whole thing in Evaporust for 2-3 days followed by hot water rinse and then bake it at 250F for 2-3 hours. Take it out and scrub it with a wire brush every so often during the soak. If anything will let you see what's going on, that will. Won't hurt the plastic or any paint or wiring.

 

[eKretz]

I have seen a strange retaining ring made of a couple of wraps of spring steel on edge, so it winds up like a washer. You have to pry out an end and then unwind it to get it off the shaft.

I would dunk the whole thing in Evaporust for 2-3 days followed by hot water rinse and then bake it at 250F for 2-3 hours. Take it out and scrub it with a wire brush every so often during the soak. If anything will let you see what's going on, that will. Won't hurt the plastic or any paint or wiring.

Those aren't strange. They're called Spirolox. That's academic anyway, there was pretty clearly no retaining ring on this shaft - or if there ever was, it rotted away long ago.

 

[Garwood]

I have seen a strange retaining ring made of a couple of wraps of spring steel on edge, so it winds up like a washer.

Not strange.

Spirolox are used extensively. They are very good in tough situations. I use them in multiple products.

 

[gmach10]

Looks like severe corrosivication to me. Water, Mother Natures Loctite!

 

[ratbldr427]

Tell us about that strange retaining ring that was holding the bearing on, I don’t think there was one on it. If there was one on it I wasn’t seeing it.

Me too, have seen a lot of motors that one end was a press fit only no retaining rings, saves .50 cents if not needed!