VPI Rim Drive vibrations


I have VPI SSM with RIM drive and SDS. The issue I'm having is a vibration being transferred from rim to the desk/platter. As the result tonarm wobbles a little bit in azimuth plane.
I tried to replace the brownish rim belt, change contact force/distance between the drive and the platter, and reinstall the belt - the vibration still there (exactly one wobble per rim's full revolution - 360 degrees).

The speed stability is very good though - have checked it with KAB Speed Strobe.

Any ideas how to resolve the issue?

Thanks a lot!
krell303
No vibrations. I suspect that the rubber feet on the SAMA contributed somewhat to any possible vibrations I may have had before using the A.S. round couplers.
Hiendmuse, I think that the vibrations are being caused by uneven placement of the ring belt on the RIM wheel. It's almost impossible to put the belt in the wheel's groove evenly
Krell303, I don't have any issues with vibrations from the rimdrive belt or anywhere else. The 10.5i tonearm is rocksteady when playing an LP- no wobbling. I use no special care or tool when putting on rimdrive belt. Make sure there is not too much pressure from the rimdrive belt against the platter. When turning off motor the platter should turn approx. 1 turn before stopping completely.
Hiendmuse, looks like I'm putting rimdrive too close to the table - it stops almoust instantly. But - do not have any tonarm wobbles anymore. Will try to reajust over the weekend, thanks!
Krell, I put a small red sticky dot on the side of the center clamp. you can also put one on the side of the platter to count the number of revolutions. You do NOT want the tonearm to wobble which is GOOD. Do not adjust so the tonearm wobbles, adjust it so the platter stops after about 1 revolution or slightly more. It only takes minute changes in moving motor. Make sure motor is centered front and back between the side of the table and the gap between motor and side of table is equidistant. Your vibration problems should go away.