Record slow down

[aragorn723]

Yup.  Hopefully this will be a top notch part.  Apparently there's shipping delays now, ordered these parts back on the 8th.  Can't even get an update on where they are.

Dave

[aragorn723]

Update-parts came in today.  No instructions included, but it was just a few screws to take out the old bearings. The new ones spin noticably better without the platter installed.  Listening to some vinyl now, and the speed variation is gone.  Seems to be more detail too.  Wasn't expecting that.

Dave

[Doc B.]

Seems to be more detail too.  Wasn't expecting that.

Yup, better bearings with lower friction have that effect. It's the same with the ball bearings we provide in our tape path upgrade kits to replace the fixed guides in Technics and Otari tape decks. Resolution increases.

[aragorn723]

What is happening here, is smoother platter rotation resulting in the stylus tracking better in the grooves and playing more detail?

Dave

[kgoss]

With a turntable ideally the only vibration would be coming from the stylus in the groove. By eliminating the bad bearing you eliminated vibration that was competing with the groove modulation.   Vibration control and elimination is at the heart of turntable design.

Did they send you any lubricant with the new bearing?

[aragorn723]

there's no separate bottle of lubricant, they must have applied it before hand at the factory.

Dave

[Deluk]

There are plenty of "exotic" oils available to suit this job but a couple of drops of Mobil1 0-10 sae will do the trick. There is bound to more than enough left in a used can at a local garage.

[Chris H]

Vibration control and elimination is at the heart of turntable design.

Title of a book co-written by the founder of Rega sums it up, "A Vibration Measuring Machine"