Since I am pretty ignorant, I will defer to your judgement and order two pairs (sets) of the 2840 stamped and one pair (set) of the 2830 stamped.
HOWEVER, are these sold in pairs or individually?
Also, what recommendations do you have to clean and lubricate the channels for smooth and easy operation?
THANKS!
Martin
Our balances are all sold individually, not in pairs. To lubricate the track, you can try a silicone spray. This is better than oil since it does not attract debris.