Volvo G990 Grader

[Stefan]

The tandem bearings are ready. There´s a split outer ring attaching to the tandem box, an inner ring attaching to the rear axle and a bronze ring there between, fixed relative to the inner ring. The bronze ring has the same dimensions as a certain "standard" 4-point contact, thin section bearing with a split inner ring. Unfortunately, however, the only supplier I know of couldn´t deliver .

To the left the two faces of the outer ring.










At the end I decided to split the bronze ring and make a one-piece inner bearing ring.


Finally, everything fits.



Making of

The bronze rings were made first, to allow for easy test fitting with the other rings.










The main outer ring portions being parted off.




Test fitting during grinding.



The stub was barely long enough for machining the other outer ring portions.


I hate making thin things. Either you have this rather insecure and hard to adjust grip or you have to make a jig.




This threading apparatus is really an excellent tool.


Thanks for looking.

Stefan

[Hemi1966]

Once again, excellent job Stefan. I don't have any more words to praise your work

About the threading apparatus for how small tap can adjust it ?

[Stefan]

Originally Posted by Hemi1966

Once again, excellent job Stefan. I don't have any more words to praise your work

About the threading apparatus for how small tap can adjust it ?

And once again thanks, Hemi. This morning I didn´t have the appropriate words for your X-frame , that´s why no comment

As to your question: My device from Vertex (VTA12-JT6) officially takes M3 to M12, but I just test inserted an M2 (shaft dia. 2.9 mm) and an M2.5 (shaft dia. 2.7 mm [sic]) and that seems to work too (for the M2 only the threaded portion was visible). For the smaller taps the lower limit of the adjustable torque might be too high, but I still think it would work for M2 in aluminum. According to the user instruction there´s a smaller model (VTA7-JT6) for M2 to M8.

Stefan

[Hemi1966]

Originally Posted by Stefan

And once again thanks, Hemi. This morning I didn´t have the appropriate words for your X-frame , that´s why no comment

As to your question: My device from Vertex (VTA12-JT6) officially takes M3 to M12, but I just test inserted an M2 (shaft dia. 2.9 mm) and an M2.5 (shaft dia. 2.7 mm [sic]) and that seems to work too (for the M2 only the threaded portion was visible). For the smaller taps the lower limit of the adjustable torque might be too high, but I still think it would work for M2 in aluminum. According to the user instruction there´s a smaller model (VTA7-JT6) for M2 to M8.

Stefan

Thanks for the information, I always thought that those tapping devices don't work with so small taps, but apparently I was wrong.
May I ask where did you by yours ?