Cylindrical roller bearings: What to Check When Choosing MUB-1309-UM and MUS1307
The real value of comparing MUB-1309-UM with MUS1307 is that it forces the buyer to decide what actually matters most. In compressors, that usually means testing both codes—and the surrounding options such as MUB7307UM, MUC1309, and MUS1307—against ring separability, radial load
