VPI SDS exact speed in .... 40 minutes?


Hi,
I bought a VPI TT with double motor/flywheel. Normaly use to take about 30 -40 minutes to get the exact speed. after 10 minutoe is very close but to be exactly at 33.333 needs that time. Do you consider this is normal?
jorsan
I respectfully disagree with bpaudio. Well type bearings such as comes with those older platters neee oil not grease. I have tried white lube in my TNT and it took forever to achieve a stanle correct speed. Inverded bearings need grease to prevent the oil from just running off the bearing and thrust plate.
The half-black and half acrylic platters are for earlier TNT and Aries tables. (I've got one) They use well-type bearings. So I don't think you're discussing inverted bearings. They should be oiled, not greased.

Not sure about the bearing on the HR-X.

But I don't think the bearing is the problem. I would look upstream at the SDS. How long should an amplifier take to reach stability? How long for a tone generator?

That's why I suggest a call to VPI.
Why hasn't anyone suggested belt slippage as the cause of this problem (and it IS a problem, not "normal")? I could envision that a high mass platter might slip the belt for several minutes at start-up, if the motor is relatively weak and the belt is not grippy.