With tight between sets of spherical roller bearing and shaft is generally used with what? Five

A shaft is provided with two spherical roller bearings, is not a fixed side than the float side with some tight.

Since the belt is tight, it must be clearance fit. When fastening, use a tight sleeve to lock it. The fixed end is tighter than the floating end.

According to the experience of watching the speed and load, there is a job to choose the fit, or can choose the transition fit

Since the belt is tight, it must be clearance fit. When fastening, use a tight sleeve to lock it. The fixed end is tighter than the floating end.