1, The shaft should be designed as short as possible and with sufficient diameter to prevent bending. The bearing seat and the base should be designed of appropriate stiffness.
2, Be careful of specified roundness, cylindricity and the finish machining surface of the axism, and the bearing seat surface.
3, Be careful with the verticality of shaft shoulder to the axial line and the verticality of bearing shaft shoulder to the bearing.
4, Ensure that the round chamfer radius is smaller than the bearing chamfer dimension, in case of the shaft or bearing seat and a bearing happening interference.
5, When the round chamfer radius is larger than the bearing chamfer dimension in using, the put a spacer ring between the bearing and the shaft shoulder.
6, For the convenience of disassembly, usually made the shaft shoulder height less than the inner diameter; If required higher shaft should to impose heavy load, then mounted a slot on the shaft.
7, Finish machining bearing mounting screws, or clamp nut, so that make it at right angles with the axis as much as possible, and reverse the shaft nut though the direction of rotation.
8, For the split bearing seat, be careful of finishing split bearing block matching surface and setrelaxation clearance on each side of the diameter of the inner hole of the bearing cover,to prevent that when slack bearing seat cover fastening the excessive force reach to bearing.
9, For light alloy bearing seat, embedded with steel bushing to provide additional rigidity. In general, interference fit is not enough to bearing for axial positioning. In principle must use the same method to fixe bearing by axial position.
10, Usually, interference fit can not meet the needs of bearing axial positioning, it should use the shaft shoulder or bearing seat shoulder.