Mounting and disassembling assembly, shaft and bearing assembly, mounting method, and disassembling method

A mounting and disassembling assembly for mounting a bearing on and disassembling the bearing from a shaft, the assembly comprising:

• an outer sleeve having an outer circumferential surface formed with a first mounting surface for mounting the bearing, and an inner circumferential surface formed with a first conical surface that extends to one axial end of the outer sleeve in an axial direction of the mounting and disassembling assembly while extending radially outwardly;
• an inner sleeve having an inner circumferential surface formed with a second mounting surface for mounting on the shaft, and an outer circumferential surface formed with a second conical surface and a threaded portion located on one axial end side of the second conical surface, the second conical surface extends to the other axial end of the inner sleeve in the axial direction while extending radially inwardly from the threaded portion, wherein with the second conical surface located radially inside and in contact with the first conical surface, the inner sleeve and the outer sleeve are moveable relatively in the axial direction;
• and
• a supporting ring threadedly connected to the threaded portion, the supporting ring and the inner sleeve are moveable relatively in the axial direction while maintaining threaded connection.