MOUNTING STRUCTURE FOR BEARING

摘要

PURPOSE: A bearing fixing structure is provided to disperse a load delivered to a bearing for supporting a main shaft to fixing bolts by fixing a bearing collar fixing the bearing to the main shaft in various directions, thereby preventing damage to the fixing bolts. CONSTITUTION: A bearing fixing structure comprises a main shaft(110), a bearing(120), a plurality of first fixing bolts(140), and a plurality of second fixing bolts(150). A supporting protrusion(111) is formed in the outer periphery of the main shaft. The bearing is mounted in the outer periphery of the main shaft so that one side of an inner wheel(121) is supported by the supporting protrusion. The bearing collar is mounted in the main shaft, thereby making the inner wheel closely adhered to the supporting protrusion. The first fixing bolts are screw-coupled from one side of the bearing collar to the main shaft in a direction parallel to an axial direction. The second fixing bolts are screw-coupled from the outer periphery of the bearing collar to the main shaft in a radial direction.