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Type: Posts; User: Jim S.

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  1. Replies
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    Make the basic holder in a lathe, including the...

    Make the basic holder in a lathe, including the rough endmill hole. Then mount in the mill and final bore in-situ with a small boring bar held in a vise. Reduces the sources of runout error to the...
  2. Thanks for the replies. garylucas - Your advice...

    Thanks for the replies.
    garylucas - Your advice makes total sense and I will pursue that approach.
    Thanks again.
  3. Replacing small DC motor with stepper or servo - where to start?

    I operate a working tugboat with a 1950s era searchlight. Tilt and pan movement is via two 115VDC 1/20hp motors, controlled via a crude mechanical "joystick". The OEM motors are failing due to age...
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    My mid-70s HLV-H has four holes in the base...

    My mid-70s HLV-H has four holes in the base framework suitable for bolting down. Photo shows the tailstock end. Headstock end is the same. 5/8" holes on a rectangular grid 13" x 55 3/4".
    Jim
    ...
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    These are OEM supplied spindle bearings from...

    These are OEM supplied spindle bearings from HLV-B 310-3. Pictures show bearing numbers. Inboard bearing dimensions, each: 18x 55x90. Outboard: 16x50x80.253741253742253743
    Jim
  6. How much distortion of 4140 pre-hard flat bar after slitting lengthwise?

    I want to make a new carriage rack for an older tool room lathe that is no longer supplied by OEM and which is not a stocked size or tooth form. Rack is approx 1/2" x 1/2" x 24" with 24DP - 20...
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    I agree with Gary as to the quality of Skinner...

    I agree with Gary as to the quality of Skinner chucks. I have a 5" 3 jaw that was supplied in the late 40s as OEM with a Hardinge tool room lathe. It has two features that I like: The jaws are...
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    I've got an early model HLV-B with the spindle...

    I've got an early model HLV-B with the spindle apart and the bearings in sealed bags. It's definitely not a cartridge type spindle.

    I'm away from the shop now but can look at them before this...
  9. Thread: Hardinge hlv-h

    by Jim S.
    Replies
    15
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    2,634

    I am NOT the person who did not get a casting set...

    I am NOT the person who did not get a casting set but am interested if it is not claimed. PM sent.
  10. +1. I operate a working boat in Alaska each...

    +1. I operate a working boat in Alaska each summer. We have a 60KW main generator but when the boat is not underway we only need from 5-20 KW. Our solution was to get a 20 KW generator and switch...
  11. FS Hardinge HV-4N 5C indexer with threaded nose

    Good condition. Fully disassembled to fix indexing pinion with OEM parts. Spindle bearing and collet seating surfaces all look unworn. Minor blemish on spindle nose thread but does not affect...
  12. I just had mine apart. The "bearing" is a long...

    I just had mine apart. The "bearing" is a long taper (approx 10 degree included angle) of the spindle operating directly in the cast iron housing. It should not need to be persuaded too hard,...
  13. I just had mine apart. The "bearing" is a long...

    I just had mine apart. The "bearing" is a long taper (approx 10 degree included angle) of the spindle operating directly in the cast iron housing. It should not need to be persuaded too hard,...
  14. Thread: I bought a HLV

    by Jim S.
    Replies
    104
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    11,813

    Peter, Thank you for the effort to provide...

    Peter,
    Thank you for the effort to provide updates on your reconditioning project. I'm particularly interested in the bearing replacement. How the new bearings fit, the "match" marks on them and...
  15. Thread: I bought a HLV

    by Jim S.
    Replies
    104
    Views
    11,813

    Pete, I don't quite know exactly what you mean...

    Pete,
    I don't quite know exactly what you mean by the above question, but I'll try an answer. I also realize from your two subsequent posts that you've arrived at a logical solution.

    My...
  16. Thread: I bought a HLV

    by Jim S.
    Replies
    104
    Views
    11,813

    Peter, I recently completed a similar conversion...

    Peter,
    I recently completed a similar conversion of my lathe to VFDs by gutting the cabinet of most controls and contactors. Though mine is an HLV-H, the electrical similarities to your HLV are...
  17. Replies
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    Subtractive Technology Center

    Subtractive Technology Center
  18. Yes, it's a carriage stop in that the carriage...

    Yes, it's a carriage stop in that the carriage drive (lead screw) is stopped at a predetermined carriage location but it is not a "hard stop". After the lead screw is disconnected at the dog clutch,...
  19. Short answer is no. Only the lead screw and...

    Short answer is no. Only the lead screw and threading train stop; the spindle continues to spin. A dog clutch at the beginning of the threading gear train is used to start, stop and reverse the...
  20. Source found for new Hardinge TL carriage drive pinion

    I have found a gears shop willing to cut the two gears on this part to the OEM specifications. The cost will not exceed $200. This post is to solicit interest in joining a group purchase which I...
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    Try Pinebrook Foundry in Great Falls, SC. They...

    Try Pinebrook Foundry in Great Falls, SC. They do one-off castings and short run production, including loose patterns, and match boards. I've had them cast several short runs in ductile and they...
  22. I think your split clamps will work. But a...

    I think your split clamps will work. But a couple thoughts:

    - After boring the split clamp, cut a 1/2" rabbet in one side of each half to fit the 1" key on the shaft. That will add to whatever...
  23. I agree with all car2 has posted. But if you are...

    I agree with all car2 has posted. But if you are up for a challenge, you might check with a couple of the shops that specialize in rebuilding/retrofitting Hardinge machines. They may have the major...
  24. For future reference, the pinion is Hardinge part...

    For future reference, the pinion is Hardinge part number HVA0006156. Cost $54 and are in stock.
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    Interesting drive arrangement. It looks from the...

    Interesting drive arrangement. It looks from the picture like the PO mounted the original phenolic step drive pulley on some homemade pillow blocks and coupled it to the motor with a flexible drive...
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