Chuck size verses Spindle / Bearing wear - Page 2
Close
Login to Your Account
Page 2 of 3 FirstFirst 123 LastLast
Results 21 to 40 of 46
  1. #21
    Join Date
    May 2015
    Country
    UNITED KINGDOM
    Posts
    1,156
    Post Thanks / Like
    Likes (Given)
    291
    Likes (Received)
    319

    Default

    Lots of facts Bill ... Thanks very much, great to hear!

    Going to sit with a Gin & Tonic now and think pound signs for my new chuck and backplate

    John

  2. #22
    Join Date
    Oct 2012
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    10,264
    Post Thanks / Like
    Likes (Given)
    5843
    Likes (Received)
    4628

    Default

    Quote Originally Posted by Jersey John View Post
    Going to sit with a Gin & Tonic now and think pound signs for my new chuck and backplate
    This is how PM differentiates still-working folk from hobby/retiree crew, BTW.

    They'll order 40-taper goods 3, 5, or 20 unit's at a go.

    We fret and scheme and procrastinate over ONE ER-mount or manual chuck more than they do over several power-operated ones on the same PO.

    Ours sit and wait for the taste of a bit 'o metal.

    Theirs get worn-out. Used-up.

    Production makes them consumables as they earn their cost several times over on 'revenue work'.

    Remember that possible background when next you buy 'used' goods.

    I've found it makes more sense to buy new, even if no longer US or European made.

    At least it isn't already damaged or worn-out to the point its ORIGINAL quality 'edge' is nought but nostalgia.

    Bill

    PS: You might class as an 'agitator', John.

    Just got off MY arse and ordered two more NEW 4-Jaw chucks *I* have been dithering over.


  3. Likes Stradbash, itsmeBernie liked this post
  4. #23
    Join Date
    Oct 2014
    Country
    UNITED STATES
    State/Province
    Maryland
    Posts
    2,474
    Post Thanks / Like
    Likes (Given)
    1759
    Likes (Received)
    1897

    Default

    Quote Originally Posted by sealark37 View Post
    Don't worry. Your lathe equipped with a 6" chuck will still outlast you. Regards, Clark
    this is what is written about the HLV headstock bearings....

    "Experienced, professional users of Hardinge HLV lathes report to the writer that the lathe is capable of running for tens of thousands of hours without any attention being required to the headstock - with one engineer, having over 40-years' daily experience of the model, claiming to have never replaced the bearings."

    So adding an extra inch of spinning chuck is unlikely to do any damage .

    dee
    ;-D

  5. Likes Stradbash liked this post
  6. #24
    Join Date
    Oct 2012
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    10,264
    Post Thanks / Like
    Likes (Given)
    5843
    Likes (Received)
    4628

    Default

    Quote Originally Posted by dcsipo View Post
    this is what is written about the HLV headstock bearings....

    "Experienced, professional users of Hardinge HLV lathes report to the writer that the lathe is capable of running for tens of thousands of hours without any attention being required to the headstock - with one engineer, having over 40-years' daily experience of the model, claiming to have never replaced the bearings."

    So adding an extra inch of spinning chuck is unlikely to do any damage .

    dee
    ;-D
    Dunno how many WORKING hours my 10EE has on it since 1942. Ford was first-owner. War Two work.

    But AFAICS, the bearings are original.

    Most any of the lathes - 'plain' bearing cone-heads included - that we see rebuild articles on were
    sore-abused for lack of proper lube and wear-take-up, and for years and tens of years, not just days or weeks.

    BENT spindles - or even beyond-restoral ones - are serious-rare, even so.


    Bill

  7. #25
    Join Date
    May 2003
    Country
    UNITED STATES
    State/Province
    Iowa
    Posts
    10,492
    Post Thanks / Like
    Likes (Given)
    3616
    Likes (Received)
    4270

    Default

    Quote Originally Posted by Monarchist View Post
    In 6" or so, Schunk no longer even lists a MANUAL 4-jaw independent amongst their pricey 'Rota Classic' line. Nor Roehm. Nor ToS. Nor the Swedes.

    Down to Taiwan or PRC now for NEW goods under 8 or 10 inches. Even the Japanese 4-J chuck was a forgotten NOS shelf-queen.
    Wait until OSHA gets done. Nobody will be able to run a manual machine anymore. They have already picked up on many of the EU safety standards for chucks. If it's not completely enclosed, OSHA isn't happy. The manual machines are on their way out for any larger machine shops.

    Read my post #7 here: who is responsible for all the missing lathe chuck jaws! ;-)

    JR

  8. #26
    Join Date
    May 2015
    Country
    UNITED KINGDOM
    Posts
    1,156
    Post Thanks / Like
    Likes (Given)
    291
    Likes (Received)
    319

    Default

    Quote Originally Posted by Monarchist View Post

    Remember that possible background when next you buy 'used' goods.

    I've found it makes more sense to buy new, even if no longer US or European made.

    At least it isn't already damaged or worn-out to the point its ORIGINAL quality 'edge' is nought but nostalgia.

    Bill

    PS: You might class as an 'agitator', John.

    Just got off MY arse and ordered two more NEW 4-Jaw chucks *I* have been dithering over.

    Never a more true word said Bill ... and glad I've got you to spend some hard earned cash too!

    As you've also said PM does lots for "Lots"

    All the best ...

    Now on smelly cheese and Port - Money spent

  9. #27
    Join Date
    May 2015
    Country
    UNITED KINGDOM
    Posts
    1,156
    Post Thanks / Like
    Likes (Given)
    291
    Likes (Received)
    319

    Default

    Quote Originally Posted by dcsipo View Post
    So adding an extra inch of spinning chuck is unlikely to do any damage .

    dee
    ;-D
    Just what I really want to hear - music to my ears

  10. Likes dcsipo liked this post
  11. #28
    Join Date
    Oct 2012
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    10,264
    Post Thanks / Like
    Likes (Given)
    5843
    Likes (Received)
    4628

    Default

    Quote Originally Posted by Jersey John View Post
    Never a more true word said Bill ... and glad I've got you to spend some hard earned cash too!

    As you've also said PM does lots for "Lots"

    All the best ...

    Now on smelly cheese and Port - Money spent
    I've never yet had Stilton or Sandeman 'Fundador' last anywhere near as long as a lathe chuck.

    So I'll settle for a London Porter and go see if I can find enough hand-grenades to clean up my shop.

    Bill

  12. #29
    Join Date
    May 2015
    Country
    UNITED KINGDOM
    Posts
    1,156
    Post Thanks / Like
    Likes (Given)
    291
    Likes (Received)
    319

    Default

    ... Well the title should now be prefixed OT ... Just finished a pack of Saint Ague (French blue) and a bottle of Taylor's 12 year old Port

    "London Porter" ... yep and you're still 5 hours behind to get some cleaning done!

    I'm off to bed and thanks for all your inputs too.

    John

  13. Likes Stradbash liked this post
  14. #30
    Join Date
    May 2015
    Country
    UNITED KINGDOM
    Posts
    1,156
    Post Thanks / Like
    Likes (Given)
    291
    Likes (Received)
    319

    Default

    Interesting comments JR and enjoyed the link to your other thread.

    Thank goodness I'm now retired and just enjoying making what I want ... when I want ... with what I like

    John

  15. #31
    Join Date
    Oct 2012
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    10,264
    Post Thanks / Like
    Likes (Given)
    5843
    Likes (Received)
    4628

    Default

    Quote Originally Posted by Jersey John View Post
    Interesting comments JR and enjoyed the link to your other thread.

    Thank goodness I'm now retired and just enjoying making what I want ... when I want ... with what I like

    John
    Hah! I'm retired twice. Mostly I just make tests. And EXCUSES!

    Upside is that the slivers don't get into my fingers - or the bedclothes - as lathe chips or milling razors once did.


  16. #32
    Join Date
    Dec 2008
    Location
    Vt USA
    Posts
    6,754
    Post Thanks / Like
    Likes (Given)
    737
    Likes (Received)
    2317

    Default

    Really! ????

    An HLV should carry only 5C collets within it's spindle nose, except for the most dire emergencies. Why, when treated correctly, that jaw chuck would be rusted up in the back shelf of the storeroom. My own four jaw for the HLV-H was never mounted on the threaded spindle, and went un-noticed when the lathe was disposed of. I had recent occasion to reconfigure the threaded mount to suit the Weiler. A much more agreeable host for such a lump ...

    Besides, the projecting jaws on such rude work holding devices often spoil one's nails....

    ;-)

  17. #33
    Join Date
    May 2015
    Country
    UNITED KINGDOM
    Posts
    1,156
    Post Thanks / Like
    Likes (Given)
    291
    Likes (Received)
    319

    Default

    Quote Originally Posted by CalG View Post
    An HLV should carry only 5C collets within it's spindle nose, except for the most dire emergencies
    Well I guess myself and many others would differ on that statement CalG ... Glad we're in a free world (well up to now anyway)


  18. #34
    Join Date
    Sep 2009
    Location
    Apex, NC
    Posts
    1,479
    Post Thanks / Like
    Likes (Given)
    1
    Likes (Received)
    728

    Default

    Quote Originally Posted by Jersey John View Post
    Hmmmm ... So where does this chuck security conversation end??

    My HLV-H has the 4° Taper nose and just ONE tiny pin is holding a "Huge" lump of iron in place, to say nothing of what's in the jaws too!

    Not sure I'll sleep tonight

    John
    Hope your new lathe is working out well! If I understand correctly, and as you all probably know, the function of that pin on the hardinge taper system is just to "screw" the chuck onto the taper by that high pitch circumferential slot, it shouldn't bottom out in the extreme of the slot (why one shouldn't use knackered up pins), and as the safety mechanism to keep the chuck from pulling or spinning off the taper. The chuck should have it's retention from friction on the taper. That size pin (~.15 dia on the working end) would have around 1000 pounds shear strength also. The most probably screwup (or out as it were) would result from having the pin in the wrong orientation for the rotation direction or rapidly reversing the chuck...... It sure is a convenient system for changing accessories, I use a big adjustable strap wrench for the chucks, and a smaller one for step chucks (a few bucks for a 2-piece big/small set from Home Despot).

  19. Likes Jersey John liked this post
  20. #35
    Join Date
    Oct 2012
    Country
    UNITED STATES
    State/Province
    Virginia
    Posts
    10,264
    Post Thanks / Like
    Likes (Given)
    5843
    Likes (Received)
    4628

    Default

    Quote Originally Posted by CalG View Post
    Really! ????

    An HLV should carry only 5C collets....
    Possibly true. And a gruesome truth, if so...

    But your other small lathe is a 10EE, right?


  21. Likes Stradbash liked this post
  22. #36
    Join Date
    May 2015
    Country
    UNITED KINGDOM
    Posts
    1,156
    Post Thanks / Like
    Likes (Given)
    291
    Likes (Received)
    319

    Default

    Quote Originally Posted by car2 View Post
    Hope your new lathe is working out well!

    I use a big adjustable strap wrench for the chucks, and a smaller one for step chucks (a few bucks for a 2-piece big/small set from Home Despot).
    Hi Car2 ... Thanks for your comments - quite like the strap wrench idea too

    Thanks John

  23. #37
    Join Date
    Nov 2014
    Country
    UNITED STATES
    State/Province
    Florida
    Posts
    3,662
    Post Thanks / Like
    Likes (Given)
    1522
    Likes (Received)
    1738

    Default

    I know you're talking about a manual lathe, not a cnc, but I will put in my 2 cents anyways. For years and years we ran a Haas SL30 with an 12" chuck running 11" dia parts on a daily basis. The machines come with a 10" chuck btw. I can't imagine changing chuck size by 1" (or two as we did) is going to have any 'real' effects.

  24. #38
    Join Date
    May 2015
    Country
    UNITED KINGDOM
    Posts
    1,156
    Post Thanks / Like
    Likes (Given)
    291
    Likes (Received)
    319

    Default

    Hi Mike ... Always appreciate input ... CNC or Manual the question is still fundamentally the same "Big lump on end of tube - will it cause stress" LOL



    John

  25. #39
    Join Date
    May 2003
    Country
    UNITED STATES
    State/Province
    Iowa
    Posts
    10,492
    Post Thanks / Like
    Likes (Given)
    3616
    Likes (Received)
    4270

    Default

    Quote Originally Posted by Jersey John View Post
    Interesting comments JR and enjoyed the link to your other thread.

    Thank goodness I'm now retired and just enjoying making what I want ... when I want ... with what I like

    John
    You're lucky. I'm also retired, but first have to do what SWMBO tells me to do, then I have to fit projects in between doctors appointments. After everything else is done, then I can play in my shop.
    JR

  26. #40
    Join Date
    May 2015
    Country
    UNITED KINGDOM
    Posts
    1,156
    Post Thanks / Like
    Likes (Given)
    291
    Likes (Received)
    319

    Default

    Quote Originally Posted by JRIowa View Post
    You're lucky. I'm also retired, but first have to do what SWMBO tells me to do, then I have to fit projects in between doctors appointments. After everything else is done, then I can play in my shop. JR
    HaHa ... It's taken me 3 attempts to get to what you may think as "Ideal or Lucky" ... Worth the wait though but still get a bollocking for the "Odd" chip finding it's way into the house

    John


Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •