Sealed bearing assembly with swing and movement

A magnetic sealed bearing assembly including:

• a shaft;
• a sealing ring being fixed on and moved with the shaft, wherein the sealing ring is cylindrical, and an axis of the sealing ring is co-axial to an axis of the shaft;
• a shell;
• a ferrofluid;
• and
• a bellows, having a fixed end connected to a chamber wall and a free end connected to the shell, wherein the bellows is able to be extended, contracted, and bent,
• wherein the sealing ring has an inner magnetic ring, which surrounds the shaft, and the shell has an external magnetic ring, which surrounds the inner magnetic ring;
• wherein the shell includes an adjustment hole, the shaft passes through the adjustment hole, which has a diameter larger than that of the shaft, and the shaft rotates in a rotational direction;
• and
• wherein the ferrofluid is attracted by a magnetic force of the external magnetic ring to be distributed on a surface of the shell toward the shaft, and when the shaft moves linearly relative to the shell and the inner magnetic ring moves with the sealing ring to a section of the external magnetic ring, a magnetic force is generated between the inner magnetic ring and the section of the external magnetic ring to attract the ferrofluid to flow, and thus the ferrofluid forms a shaft seal between the inner magnetic ring and the section of the external magnetic ring by surrounding a periphery of the sealing ring to block gas or liquid in the sealing ring.