603,962 active members*
3,076 visitors online*
Register for free
Login
Results 1 to 6 of 6
  1. #1
    Join Date
    Dec 2009
    Posts
    1416

    G0602 Spanner Nut

    Does anyone know the real size of the spindle spanner nuts on the Grizzley 10x22? The manual says M30x1.5 and there is no way that's right. The minor diameter of that thread is smaller than the un-threaded rear of the spindle. I measured about 38mm quick with calipers on the inside of the nut but I need to be sure. I'm making a replacement spanner nut with built in rear spider.
    CNC: Making incorrect parts and breaking stuff, faster and with greater precision.

  2. #2
    Join Date
    Aug 2009
    Posts
    899
    Just measure the outer dia of the threads it goes on and use a pitch gauge for the threads.

  3. #3
    Join Date
    Jan 2010
    Posts
    2141
    Quote Originally Posted by photomankc View Post
    Does anyone know the real size of the spindle spanner nuts on the Grizzley 10x22? The manual says M30x1.5 and there is no way that's right. The minor diameter of that thread is smaller than the un-threaded rear of the spindle. I measured about 38mm quick with calipers on the inside of the nut but I need to be sure. I'm making a replacement spanner nut with built in rear spider.
    Do I understand correctly that the G0602 chuck is attached to the spindle via that thread? Or are you referring to part number 24 in the diagram on page 45 of the manual? (My 3D assembly drawing interpretation skills seem to be failing me - I'm not sure whether that nut is inside or outside of the housing).

    Can you describe your idea or plans for the rear spider?

    I am looking into possibly getting a G0602, and considering what would be needed to hold 1" diameter stock extending out the rear of the spindle. Is that what you are planning to use the spider for?

  4. #4
    Join Date
    Dec 2009
    Posts
    1416
    Right. Part number 24...


    On the parts list in the PDF they list that nut as M30-1.5 which can't be right. The minor diameter is way too small on that to even fit over the spindle O.D. in the rear. I see on the parts site at Grizzly it's listed as a 37mm so that's probably it. Maybe M39-1.5. I checked the pitch with a thread gauge this morning before work.

    The chuck thread is something else entirely and not related.
    CNC: Making incorrect parts and breaking stuff, faster and with greater precision.

  5. #5
    Join Date
    Aug 2009
    Posts
    223
    It's definitely not M30. The OD of the spindle where the pulley slips through is 40mm I believe.


    I cut a couple of spanners out of 1/4" steel on my plasma table:

    Ian

  6. #6
    Join Date
    Dec 2009
    Posts
    1416
    The mystery of the spanner nut is solved. Based on my measurements I picked M39-1.5 as the best match to what I got for external major and internal minor diameters on the nut and spindle. Made up a test chunk out of AL to test the nut on. But I think I blew a little past it since I didn't want to take off the real nut till I thought I was close. Took off the nut and it spins right on but maybe a tad sloppy. Should have checked .005 earlier I think. Anyway Now I can thread the replacement nut and have something that will tell me when it's ready without removing it from the chuck.

    Attached Thumbnails Attached Thumbnails CRW_0332.jpg  
    CNC: Making incorrect parts and breaking stuff, faster and with greater precision.

Similar Threads

  1. Need help with programming a spanner wrench
    By Shanghyd in forum Bridgeport / Hardinge Mills
    Replies: 8
    Last Post: 12-17-2009, 07:09 AM
  2. wanted er40 chuck and spanner please
    By dave g in forum Want To Buy...Need help!
    Replies: 3
    Last Post: 06-06-2008, 07:58 AM
  3. Duty of the spanner nut on X2(mini mill)
    By ZipSnipe in forum Benchtop Machines
    Replies: 4
    Last Post: 06-09-2006, 05:05 AM
  4. NMTB30 wrench / spanner?
    By damae in forum Bridgeport / Hardinge Mills
    Replies: 7
    Last Post: 12-14-2005, 10:45 PM
  5. anyone know what size spanner wrench?
    By jderou in forum Bridgeport / Hardinge Mills
    Replies: 3
    Last Post: 06-03-2005, 02:01 PM

Posting Permissions

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