RING SHAPED RUBBER MAGNET AND SPINDLE MOTOR HAVING THE SAME

摘要

Disclosed herein is a ring shaped rubber magnet for a spindle motor formed by coupling one surface and the other surface of a sheet shaped rubber magnet to each other, wherein one surface of the sheet shaped rubber magnet has an obtuse angle of 90 degrees or more at an edge of one end portion thereof and an acute angle of 90 degrees or less at an edge of the other end portion thereof, and the other surface of the sheet shaped rubber magnet has an acute angle of 90 degrees or less at an edge of one end portion thereof and an obtuse angle of 90 degrees or more at an edge of the other end portion thereof.