584,833 active members*
5,841 visitors online*
Register for free
Login
IndustryArena Forum > MetalWorking Machines > Benchtop Machines > Mini Lathe > LMS 5200 mini lathe spindle wobbling
Results 1 to 7 of 7
  1. #1
    Join Date
    Sep 2012
    Posts
    18

    LMS 5200 mini lathe spindle wobbling

    Hi everyone

    I’ve just took a delivery of a new littlemachineshop hitorque mini lathe 5200 and taking a look at it.

    It has quite a bit if a runout and i took a side gear box cover off and noticed a pretty bad wobble of the rear part of the spindle. Here is the video. The gear is wobbling pretty noticeably. This does not seem to help with the runout I guess. Also there is noticeable vibration on certain RPMs.

    I am wondering if it is just an unlucky one that I have, or are all of the chinese mini lathe spindles like that?

    Any suggestions on what to do with it are welcome.


    https://youtu.be/1QYtfi224fY

  2. #2
    Join Date
    Feb 2006
    Posts
    1187

    Re: LMS 5200 mini lathe spindle wobbling

    As long as the business end is good that back end wobble is not too much to worry about

  3. #3

    Re: LMS 5200 mini lathe spindle wobbling

    WOW, that is bad. Did you talk to LMS about this? What do they say?

    Arturo Duncan

  4. #4
    Join Date
    Sep 2012
    Posts
    18

    Re: LMS 5200 mini lathe spindle wobbling

    Quote Originally Posted by ZipSnipe View Post
    As long as the business end is good that back end wobble is not too much to worry about
    Well, how about the following factors:

    1. Vibration that is introduced by this assymetry - i feel that the lathe vibrates at certain RPMs - don’t you think this may wear out the bearings ultimately
    2. Since the gear on the spindle is not centered, there is a floating distance between the axis of this gear and the axis of the next gear in the gearbox that passes rotation to the leading shaft. I guess this might be not good for threading, for example, as it might give uneven lead of the cutting tool.

    Also there are some lucky guys that do not have this wobbling. Makes me think that the quality varies from lathe to lathe, and probably littlemachine.com is not bothering checking some basic operation of the lathe prior to shipping it to the customer

  5. #5
    Join Date
    Sep 2012
    Posts
    18

    Re: LMS 5200 mini lathe spindle wobbling

    Quote Originally Posted by arturod View Post
    WOW, that is bad. Did you talk to LMS about this? What do they say?

    Arturo Duncan
    I’ve emailed the littlemachine.com, waiting for their reply and suggestions. Hopefully they will come up with some solution.

  6. #6
    Join Date
    Sep 2012
    Posts
    18

    Re: LMS 5200 mini lathe spindle wobbling

    Got the reply from the littlemachine.com that they " do not see a problem". I guess I should have purchased from a bigger company.

  7. #7
    Join Date
    Nov 2011
    Posts
    205

    Re: LMS 5200 mini lathe spindle wobbling

    Measure the run out and complain VIGEROUSLY !!!

    Don

Similar Threads

  1. Servo as spindle for mini lathe
    By Moriduri in forum LinuxCNC (formerly EMC2)
    Replies: 5
    Last Post: 07-13-2017, 05:20 AM
  2. My attempt at a servo spindle for my 7x14 mini lathe
    By Smertrios in forum Maintenance DIY Discussion
    Replies: 0
    Last Post: 03-15-2013, 06:43 AM
  3. Mini lathe and mini mill spindle?
    By ZipSnipe in forum Uncategorised MetalWorking Machines
    Replies: 3
    Last Post: 10-15-2010, 02:13 PM
  4. Mini lathe motor for spindle?
    By Guldberg in forum Mechanical Calculations/Engineering Design
    Replies: 3
    Last Post: 11-08-2006, 09:27 PM
  5. Mini lathe headstock for Spindle
    By rgillam in forum DIY CNC Router Table Machines
    Replies: 0
    Last Post: 05-24-2005, 01:59 AM

Tags for this Thread

Posting Permissions

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