Magnetic damping roller structure

A magnetic damping roller structure, comprising:

• a mounting base;
• a first annular bearing, fixed at the mounting base, wherein at least one side surface of the first annular bearing is uniformly arranged with a plurality of first grooves, and a first protrusion is formed between adjacent two first grooves;
• and
• at least one second annular bearing, rotatably arranged at the mounting base, wherein the second annular bearing and the first annular bearing are coaxially arranged together, a plurality of second grooves are uniformly arranged at a surface of one side of the second annular bearing facing the first protrusion, and a second protrusion is formed between adjacent two second grooves;
• wherein a gap is formed between the first protrusion and the second protrusion, and the first protrusion and the second protrusion are arranged in one-to-one correspondence and generate attraction magnetic forces.