o-ring size

[coglesby]

What is the size of the o-ring on the spindle shaft for aries TT?

[Brf]

I would hazard a guess that the o-ring is of a standard size. You can purchase a small o-ring kit of various sizes which will almost definitely include the size you need. Amazon has huge selection at affordable costs.

[coglesby]

Nitrile I assume?

[Brf]

Nitrile I assume?

Most likely, but I wouldn’t be too concerned as the role of the o-ring in this application is to provide damping and aid in providing an interference fit.

[coglesby]

ok, my platter has wobble so I assume the o-rings have shrunk. Hopefully new o-rings will fix it.

[coglesby]

By the way, THANK YOU BRF

[Brf]

ok, my platter has wobble so I assume the o-rings have shrunk. Hopefully new o-rings will fix it.

Does your platter have the tri-point bearing/platter interface? In other words, do you have three recessed grub screws flanking the platter spindle. If you are unsure, post a picture of the platter’s top

[coglesby]

5CD0ED54-C404-4045-828F-F6EE403E9F16.jpeg (3.38 MiB) Viewed 117 times

[Brf]

The o-rings have nothing to do with the platter wobble or level. The three holes just outside of the spindle contain adjustable pointed grub screws that when extended protrude beyond the platter’s underside. Each point rests on the bearing flange located just below the o-rings. Each grub screw can be adjusted from the top of the platter using an Allen key to obtain a level platter. Before you make any adjustments, make sure that the platter and flange are mated/oriented correctly. To do this, there should be a dot on the platter’s underside on the metal ring surrounding female bearing hole. This dot should line up vertically with a dot on the bearing flange (not all platter’s have alignment dots).

Once the dots are aligned, the grub screws can be adjusted to level the platter. To make this process easier, you can purchase an inexpensive run out gauge. Let me know if you need additional elaboration.

[coglesby]

The dots are definitely lined up.

My grub screws do not protrude through the platter currently so the platter sits directly on the flange.

There is almost no wobble but still a tiny bit when the record clamp is installed.

Just to explain, I noticed my wow and flutter varies a lot and I was concerned. I’m not sure of the accuracy of the RPM phone app I am using. Regardless the graph shows it is synchronized with the platter rotation.

It’s nowhere near the specs VPI published and is around 0.2%. Will an unlevel platter possibly contribute?

Is the leveling, leveling it with respect to the plinth?

Yes, I would like to level it properly if you can let me know where I can get a runout gauge. I’ll google it.

As I’ve posted on the forum before I have to move my VTA almost all the way down. The grub screws not touching may be contributing to that as well.

Thanks for your help