You can, of course, brush them, however this will not last long. More radical means of plastic washer embedded between the half-loops.
There is another way to get rid of the squeak. You need to shorten rod one half loop and put the loop inside a steel bearing ball.
Recommend to read
CRUISER 3 RD CLASS LAVOISER
CRUISER 3 RD CLASS LAVOISER. Scale model 1:200. "Colonial" cruiser of the 3rd class "Lavoisier" was laid down in Toulon in January 1895, launched in April 1897, and finally completed...
“COMET” WILL BE MORE POWERFUL
Engine MD-5 Kometa is produced in large series for many years and is established on the models of different types. To simplify manufacturing and reduce the cost of manufacturing allows...
