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Hardness of 1040 vs annealed O1
I want to extend the life of the bushings as long as possible. The problem we are running into at the moment is that at some point in the past, somebody decided to replace the oem pins with 12.9 shoulder bolts, which absolutely destroyed the oem bronze bushings, as well as the plate steel... -
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Hardness of 1040 vs annealed O1
Hello all, I am looking to replace some oem parts for a machine that is no longer supported. The parts involved include a push/pull cylinder with balljoint end, inside the end is a pin that rides inside of bronze bushings. The bushing is Non-standard, so I was planning to turn them myself... -
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What to look for on a mill?
Recently got word from my boss that I have the option of getting a free mill to our facility. He told me the facility it was at was in the process of taking it apart to scrap it, but they will save it for me. I don’t have any information on the actual unit itself, other than they “removed the...- Mpehon
- Thread
- Replies: 1
- Forum: Bridgeport / Hardinge and USA Light Iron
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Anyone have a SB 2A Collet Sleeve handy?
My 13" SB is the older model with a 1-7/8x8TPI spindle and 1" through bore. Along with my lathe came the nose cap, collet hand wheel and several 2A Collets. However, the collet sleeve is not there. I have looked online and haven't seen any available, and no pictures of the 2A sleeve. I figure...- Mpehon
- Thread
- Replies: 4
- Forum: South Bend Lathes
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M
My first “real” project
Starting around January, I decided to restore an old Southbend 13” toolroom lathe. I have been slowly adding tooling and learning the ins and outs of the machine and decided to make my first “real” item. I had made a couple practice things, and a pair of spacers/shims, but decided I would make... -
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Spindle lift test, how far?
It is a cast iron pillow block with a split bronze bearing and bronze expanded plugs, which the capillary wicks push through the bottom to oil the spindle bearing surface. Thank you for the reply. Will move forward with installing the new shims and checking oil clearance.- Mpehon
- Post #3
- Forum: South Bend Lathes
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Spindle lift test, how far?
Hello all, I have recently completely restored a wartime SB13. Upon pulling the spindle caps, I found they were shimmed with pieces of cardboard and old notebook paper and the spindle had .015 deflection. I ordered .0015” brass shim stock and plan to install new shims. In the “restoring SB...- Mpehon
- Thread
- Replies: 5
- Forum: South Bend Lathes
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M
Tail stock drill chuck runout
I put my chuck in my headstock using an MT4-3 sleeve. Measured runout of the spindle at .0007”, then moved my gauge down to the sleeve, then to the shoulder of the MT3-JT33 right before the chuck, then at the front of the chuck, before the jaws. All of those were “acceptable”. Then I used a new... -
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Tail stock drill chuck runout
Hello all, I have a 13” SB that I am slowly learning on. I noticed today when I went to bore a hole it was vastly off center. Long story short, the chuck, a Jacobs 36A, has almost .050” runout. I took the chuck down and cleaned it really well, greased it, and reassembled to the same... -
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Armstrong tool holder take question
I recently restored a wartime 13 toolroom lathe. Since restoring it, Ive slowly been teaching myself how to use it. With the lathe came several lantern tool posts, and a mess of other stuff. I am using the Armstrong style toolholders, but Im a little confused on take angle for my HSS. When...- Mpehon
- Thread
- Replies: 5
- Forum: South Bend Lathes