Product Description
30/10 borable main bearings set for Topolino models. 30/10 means that the internal size of the main bearing is 37.00 mm and 49.00 mm and the bearings must to be machined on the inside diameter with a boring tools machine. You can obtain with these bearings the internal diameter from 37.00 mm and 49.00 mm up to 40.00 STD size and 52.00 STD size.