MWF FEED
10th March 2021, 02:10 AM
Hi Guys,
As part of installing my new DRO on the mill, I decided to sort out the spindle bearings. With the quill out of the mill they felt very stiff and lumpy, not at all nice. Anyway I rapidly discovered that the bearings were secured top and bottom by plate nuts, and of course I don't have any pin wrenches with large enough pin spacings to fit into the separation between the pin holes. So I set to and made a universal pin wrench.
09-03-2021-005.jpg (https://metalworkforums.com/attachment.php?attachmentid=391193&d=1615298891) 09-03-2021-009.JPG (https://metalworkforums.com/attachment.php?attachmentid=391189&d=1615298891) 09-03-2021-008.jpg (https://metalworkforums.com/attachment.php?attachmentid=391190&d=1615298891)
09-03-2021-010.jpg (https://metalworkforums.com/attachment.php?attachmentid=391188&d=1615298891) 09-03-2021-007.jpg (https://metalworkforums.com/attachment.php?attachmentid=391191&d=1615298891) 09-03-2021-006.jpg (https://metalworkforums.com/attachment.php?attachmentid=391192&d=1615298891)
These are pictures of the universal pin wrench that I've made, in this case for the sole purpose of removing the top and bottom plate nuts securing the spindle bearings in the quill.
The first picture shows the whole wrench. You can see four pins, only because the pin holes are 5 mm diameter at the top and 4 mm at the bottom. I used 6 mm by 12 mm bright steel bar to make the wrench, it is 10 inches long. I used a 36 mm long piece of the same bar as a hinge and used M6 cap screws to secure it.
One pair of pins are made from a couple of turned down M6 cap screw off cuts loctited in place, and the other pair are two M4 cap screws. I made a piece of aluminium plate, secured to the bars to make a setting piece to suit both pin nut hole spacings. You can also see the result of my measurement error from the hole hitting the plate edge and the filed out scallop to clear the edge of the quill. I hadn't realised that the hinge had moved when I measured for drilling the holes. The whole thing should be 6 mm further down.:doh:
Anyway it works just fine and both plate nuts are off ! Now off to sort the bearings.
Thanks Guys.
Attached Images
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-005.jpg (https://metalworkforums.com/attachment.php?attachmentid=391193&d=1615298891) (248.5 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-009.JPG (https://metalworkforums.com/attachment.php?attachmentid=391189&d=1615298891) (160.6 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-010.jpg (https://metalworkforums.com/attachment.php?attachmentid=391188&d=1615298891) (247.0 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-008.jpg (https://metalworkforums.com/attachment.php?attachmentid=391190&d=1615298891) (247.9 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-007.jpg (https://metalworkforums.com/attachment.php?attachmentid=391191&d=1615298891) (248.4 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-006.jpg (https://metalworkforums.com/attachment.php?attachmentid=391192&d=1615298891) (248.7 KB)
Read the full thread at metalworkforums.com... (https://metalworkforums.com/showthread.php?t=206383&goto=newpost)
As part of installing my new DRO on the mill, I decided to sort out the spindle bearings. With the quill out of the mill they felt very stiff and lumpy, not at all nice. Anyway I rapidly discovered that the bearings were secured top and bottom by plate nuts, and of course I don't have any pin wrenches with large enough pin spacings to fit into the separation between the pin holes. So I set to and made a universal pin wrench.
09-03-2021-005.jpg (https://metalworkforums.com/attachment.php?attachmentid=391193&d=1615298891) 09-03-2021-009.JPG (https://metalworkforums.com/attachment.php?attachmentid=391189&d=1615298891) 09-03-2021-008.jpg (https://metalworkforums.com/attachment.php?attachmentid=391190&d=1615298891)
09-03-2021-010.jpg (https://metalworkforums.com/attachment.php?attachmentid=391188&d=1615298891) 09-03-2021-007.jpg (https://metalworkforums.com/attachment.php?attachmentid=391191&d=1615298891) 09-03-2021-006.jpg (https://metalworkforums.com/attachment.php?attachmentid=391192&d=1615298891)
These are pictures of the universal pin wrench that I've made, in this case for the sole purpose of removing the top and bottom plate nuts securing the spindle bearings in the quill.
The first picture shows the whole wrench. You can see four pins, only because the pin holes are 5 mm diameter at the top and 4 mm at the bottom. I used 6 mm by 12 mm bright steel bar to make the wrench, it is 10 inches long. I used a 36 mm long piece of the same bar as a hinge and used M6 cap screws to secure it.
One pair of pins are made from a couple of turned down M6 cap screw off cuts loctited in place, and the other pair are two M4 cap screws. I made a piece of aluminium plate, secured to the bars to make a setting piece to suit both pin nut hole spacings. You can also see the result of my measurement error from the hole hitting the plate edge and the filed out scallop to clear the edge of the quill. I hadn't realised that the hinge had moved when I measured for drilling the holes. The whole thing should be 6 mm further down.:doh:
Anyway it works just fine and both plate nuts are off ! Now off to sort the bearings.
Thanks Guys.
Attached Images
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-005.jpg (https://metalworkforums.com/attachment.php?attachmentid=391193&d=1615298891) (248.5 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-009.JPG (https://metalworkforums.com/attachment.php?attachmentid=391189&d=1615298891) (160.6 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-010.jpg (https://metalworkforums.com/attachment.php?attachmentid=391188&d=1615298891) (247.0 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-008.jpg (https://metalworkforums.com/attachment.php?attachmentid=391190&d=1615298891) (247.9 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-007.jpg (https://metalworkforums.com/attachment.php?attachmentid=391191&d=1615298891) (248.4 KB)
https://metalworkforums.com/images/attach/jpg.gif 09-03-2021-006.jpg (https://metalworkforums.com/attachment.php?attachmentid=391192&d=1615298891) (248.7 KB)
Read the full thread at metalworkforums.com... (https://metalworkforums.com/showthread.php?t=206383&goto=newpost)