584,805 active members*
5,239 visitors online*
Register for free
Login
Results 1 to 6 of 6
  1. #1
    Join Date
    Jul 2010
    Posts
    567

    Ballscrew Reballing and lube help.

    I just recieved my 6040 frame, however, I took most of it apart to see what I'm dealing with, and ignored my better judgement with ballscrews.
    Eventually, I put all the balls back into the internal recirculating nut, and as a note I did notice a space in each raceway which is about one ball width but a final one wouldn't fit. I'm guessing that's how it's supposed to be and I didn't lose any balls.

    I didn't apply any lube, and actually stripped all the grease off with solvent. Later on I added some engine oil to keep it from rusting but know it won't work for operation.

    What is an ideal lubricant for ball screws in a wood dust filled environment?

    Also, what is good for those generic linear bearings found in the 6040 Chinese machines?

    Thanks in advance!

    Josh

  2. #2

    Re: Ballscrew Reballing and lube help.

    The right oil or oil grease for ball screw gatherings lessens unscheduled downtime for repair by guaranteeing that the congregations convey their normal administration life.

    The important parameters to consider when you select or outline a ball screw get together are working burden, speed, precision, environment, and force prerequisites. What's more, whether you select a moved ball screw or an accuracy ground ball screw, grease is another essential component.

  3. #3
    Join Date
    May 2013
    Posts
    480

    Re: Ballscrew Reballing and lube help.

    Quote Originally Posted by rshirsagar5 View Post
    The right oil or oil grease for ball screw gatherings lessens unscheduled downtime for repair by guaranteeing that the congregations convey their normal administration life.

    The important parameters to consider when you select or outline a ball screw get together are working burden, speed, precision, environment, and force prerequisites. What's more, whether you select a moved ball screw or an accuracy ground ball screw, grease is another essential component.
    for the english folks, there is the new age bull**** generator. Page not found
    you may have to google for it, forum software is pretty smart, its quite hilarious. new age bullsh*t generator.

    Problem with wood dust is wood contains silica, a very hard material. it is nearly single handedly responsible for the fact that carbide cutters don't last forever cutting wood.
    "I did notice a space in each raceway which is about one ball width but a final one wouldn't fit. I'm guessing that's how it's supposed to be and I didn't lose any balls. "
    that is about right. if you want to fit that last ball in there.. you'd probably have to make every other ball .001" smaller in diameter than the other (they don't carry the load but they rotate backwards as they slide through the ball)

    jury is still out as to wheter or not offsizing every other ball improves life or not. probably depends on velocity and load, and contamination. none of which are easy to quantify.

  4. #4
    Join Date
    Dec 2003
    Posts
    24216

    Re: Ballscrew Reballing and lube help.

    Some are packed that way from day one, I have found that it is worth checking when dismantling, as many preloaded B.S.'s size every other one between 1thou and 2 thou smaller.
    Al.
    CNC, Mechatronics Integration and Custom Machine Design

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.

  5. #5
    Join Date
    Feb 2017
    Posts
    9

    Re: Ballscrew Reballing and lube help.

    The wiper is there to keep chips and debris out. But it's just a teflon or plastic wiper, how good could it be? For wood customers I usually roll some felt, and jam it in the nut and then glue it in place and trim away the excess. Doesn't have to look pretty, its main function is to keep away wood chips. Soak it in a little oil and you've got a winner!

    My name is Ed Ross with RossCNC.com out of Los Angeles. Been doing this 20+ years and it works.

    When you have two different size balls, you always put them back in a staggard load. BIG to little, BIG to little. and if you're one odd ball, make it up on the next circuit, one little, one BIG and it all evens out.

    If you need a repair, we offer 50% off regular pricing for this forum.

  6. #6
    Join Date
    Jun 2007
    Posts
    47

    Re: Ballscrew Reballing and lube help.

    Most linear bearing manufacturers specs that I've read seem to recommend an NLGI grade 2 non-molybdenum synthetic grease such as Shell Alvania EP2 or equivalent for general purpose use. Special environments (eg vacuum, food, low-dust, extreme loads or speeds) will often have their own recommendations. Ballscrews often list oil or grease, again, usually NLGI 2 for general use. Oil is less sticky than grease which can be an advantage in dusty environments such as woodwork.

Similar Threads

  1. Ballscrew grease/lube/oil? Yeah, seriously.
    By cnczoner in forum Linear and Rotary Motion
    Replies: 14
    Last Post: 12-16-2021, 01:35 PM
  2. Arrow 500 Spindle Lube Fault - where is the lube?
    By Joe Miranda in forum Cincinnati CNC
    Replies: 10
    Last Post: 07-20-2019, 11:47 AM
  3. Reballing with bigger balls
    By Mihkel615 in forum Linear and Rotary Motion
    Replies: 5
    Last Post: 03-30-2013, 01:48 AM
  4. Ballscrew not served by oiler: how to lube ???
    By Frogblender in forum Novakon
    Replies: 2
    Last Post: 10-09-2011, 08:08 PM
  5. Changing lube on a ballscrew
    By Guldberg in forum Linear and Rotary Motion
    Replies: 2
    Last Post: 06-19-2009, 02:55 PM

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
  •