mcload
Hot Rolled
- Joined
- Nov 5, 2007
- Location
- Houston, Texas
I am near completion of a 1958 9" SB lathe with horizontal drive. (This is a Model B that I am converting over to a Model A).
As far as I know, the GE SKC43 type motor is original to this machine...or is it? As many of you know, this motor
has bushings rather than bearings. On each end of the shaft are small GITS type oiling ports to lubricate a massive
amount of felts that surround the bushings. However what concerns me is that the motor was mounted in such a way
that the oil ports/tubes face outward horizontally as opposed to vertically. Clearly, there is little chance of oiling these
shafts when they are in a horizontal position.
This is not the first time I've seen this with this particular type of motor. Doing some photo research, I found what appears
to be an old GE motor on a 9" that has some sort of mounting frame or adapter that holds the motor correctly for these
oiling ports. I realize that I can loosen the J-hooks and spin the motor somewhat, but it still doesn't come close to
where it needs to be vertically. (plus the wiring cable fouls against the motor frame)
The thought also occurred to me to rotate the end plates one-quarter turn which would put the oilers on top, however
that shifts the wiring access plates away from the wiring terminal which seems a bit extreme to have to do this.
So did the factory mount these motors? And if so, why do it in such a way that prohibits lubrication to the shaft?
Are there any other 9" SB lathe owners with this issue on their GE motors? And how did you get around it?
Just curious and trying to learn.(Yes, I do plan on making an adapter plate.)
Thank you for your time.
PMc
View attachment 315455 View attachment 315457 View attachment 315458 View attachment 315459 View attachment 315460
As far as I know, the GE SKC43 type motor is original to this machine...or is it? As many of you know, this motor
has bushings rather than bearings. On each end of the shaft are small GITS type oiling ports to lubricate a massive
amount of felts that surround the bushings. However what concerns me is that the motor was mounted in such a way
that the oil ports/tubes face outward horizontally as opposed to vertically. Clearly, there is little chance of oiling these
shafts when they are in a horizontal position.
This is not the first time I've seen this with this particular type of motor. Doing some photo research, I found what appears
to be an old GE motor on a 9" that has some sort of mounting frame or adapter that holds the motor correctly for these
oiling ports. I realize that I can loosen the J-hooks and spin the motor somewhat, but it still doesn't come close to
where it needs to be vertically. (plus the wiring cable fouls against the motor frame)
The thought also occurred to me to rotate the end plates one-quarter turn which would put the oilers on top, however
that shifts the wiring access plates away from the wiring terminal which seems a bit extreme to have to do this.
So did the factory mount these motors? And if so, why do it in such a way that prohibits lubrication to the shaft?
Are there any other 9" SB lathe owners with this issue on their GE motors? And how did you get around it?
Just curious and trying to learn.(Yes, I do plan on making an adapter plate.)
Thank you for your time.
PMc
View attachment 315455 View attachment 315457 View attachment 315458 View attachment 315459 View attachment 315460