Is this for the actual pivot?
If so, viscosity should count for nothing as it will move neither far nor fast enough for viscous drag to have any effect. Very different to a Hadcock where the pin slides over 4 ball bearings as it moves. The Morch is basically a pin-point contact, if you are referring to the actual pivot.
I thought it was for the damping well...
I'll let you know when my supplier lets me know.Hello all and yet another query, does anyone know the correct viscosity of the silicone for a Morch UP4 tonearm I'm assuming that it is a standard throughout the range.
I have just purchased a used UP4 but need the damping fluid.
Thanks to you all
Very different to a Hadcock where the pin slides over 4 ball bearings as it moves. The Morch is basically a pin-point contact, if you are referring to the actual pivot.
John, my supplier has said he will send me some. PM me your address and I'll send it on when it arrives (from Sweden!).Hello all and yet another query, does anyone know the correct viscosity of the silicone for a Morch UP4 tonearm I'm assuming that it is a standard throughout the range.
I have just purchased a used UP4 but need the damping fluid.
Thanks to you all
I'm not sure if you're suggesting the damping fluid acts at the pin/bearing point for the Hadcock. If you are, it doesn't. The drag is at an extension of the arm that is immersed in fluid in a cup below the arm.
I was pointing out that the Morch pivot is a genuine unipivot in that the arm sits on the tip of a pin. Hadcock pseudo-unipivot arms do not - the tip of a rounded pin sits in the gap between four ball bearings and hence the pin rides on the surface of all four.
I was curious again, because the Morch appears pretty much as an ARO, no obvious dashpot.
On the Hadcock 242 there is a ridge at the top of the central pivot pin that the 4 balls are separated by,
This thread has morched into how many balls on the head of a pin. Pity the OP.
I bought a bottle of RC suspension silicone for my Jelco damping well, back along. Unsure what grade/viscosity it was.I use 250000 on mine, I struggled to find any but eventually went to a model shop that used it to damp the brakes I believe on radio controlled cars. Had the benefit of being cheap.