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Without knowing the age it will have plain bearings lubes by felt wicks. Very reliable and long lasting if well maintained.Knowing absolutely nothing about southbend , would this be a bearing with oil pump unit, or are the bearings just lubed by those oil cups? What kind of accuracy could be expected with it being driven by just a lead screw ?
That’s what I didn’t know, thanks so much. The lead with key arrangement would keep it from excessive wear. Cool.Without knowing the age it will have plain bearings lubes by felt wicks. Very reliable and long lasting if well maintained.
The lead screw will serve two purposes:
1) threading by way of half nuts, as accurate as any lathe of that vintage
2) power feed by way of a longitudinal slot on the lead screw which drives a key and bevel gear arrangement.
My South Bend 10K had the same arrangement and worked great.