The invention relates to the field of 
machine parts, and provides a novel bearing formed through the combination of a permanent 
magnet bearing and a 
roller bearing. The novel bearing comprises an inner ring, an outer ring, a roller and four magnetizers. The novel bearing is characterized in that, like a normally used 
roller bearing, the roller is mounted between the inner ring and the outer ring; the inner ring and the outer ring are formed through 
processing permanent 
magnet steel, provided with axial 
magnetization, the same in magnetic direction, coaxially arranged, the same in 
axial length and vertically aligned; the magnetic lines of the magnetic steels of the inner ring and the outer ring are completely and respectively concentrated into gaps between every two adjacent magnetizers through four magnetizers on the two sides of the inner and the outer rings, so as to form the permanent 
magnet bearing; due to polar repulsions, the inner ring and the outer ring mutually repel, 
extrusion forces from the inner ring and the outer ring of the 
roller bearing to the roller can be reduced. Therefore, the friction, the abrasion, the vibration and the 
noise of the 
system are reduced, the rotating speed of the bearing is increased, and the service life of the bearing is prolonged.