Stiffness analysis of forward and reverse installation When the transmission parts are cantilever-mounted, the shafting stiffness of reverse installation is higher than that of forward installation. This is because the distance between the pressure centers of bearings installed in the reverse direction is large, which makes the reaction force and deformation of bearings and the maximum bending moment and deformation of shafts smaller than that of bearings installed in the forward direction. When the transmission part is between two bearings, the forward assembly reduces the distance between the pressure centers of the bearings and helps to improve the stiffness of the shaft, while the reverse assembly is the opposite.

Bearing is an important part of modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement and ensure its rotation accuracy.