I would be more suspicious of airborn and/or mechanical isolation induced vibrations causing you to hear the rumble as opposed to the bearing. Just as the previous posters have mentioned. Unless you have a Thorens TP series arm, a mismatch from cart/arm combo can be also contribute to the problem. They use to make "rumble filters" that you could stick on the phono cable rca plugs, although I dont know if they are still avail., but that only reduces the sonic effects of the "rumble" and is not a cure.
Rumble from Thorens 160 how to eliminate?
Have a TD 160 (maybe 165) that I recently took out of retirement. Has a good deal of rumble going on, my sub drivers look like I am playing rap music between songs! I put some 3~1 oil in the spindle bushing tube on the sub platter (not a lot, I am not sure if it's the kind that is looking for a half teaspoon or so). Original belt, so it is slow to start but does get going. Using an older Grado cart. which is in good shape. Any fixes before I chuck it and buy a Rega 1? Oil the motor, and if so how?
Thanks
Thanks