FLAT THROUGH TYPE WITH A NON-CYLINDRICAL HOLE (SN)
Tn type stones are made in the form of a slight arc to reduce the surface
contact between the pivot and the bearing hole. This significantly decreases
friction in the supports and also improves lubrication conditions.
Manufactured from material: synthetic corundum ruby-5, ruby-10, and also
available upon customer request.
We can also produce items of other sizes according to the customer's drawing.
