Stamped bearings Stamped bearings are easy to use and maintain, reliable operation, good starting performance, and high load carrying capacity at medium speeds. Compared with ordinary bearings, stamped bearings have a larger radial size, lower damping capacity, longer life at high speeds, and louder sounds. Radial bearings in stamped bearings (mainly bearing radial forces) usually consist of an inner ring, an outer ring, a stamped body and a stamped cage.
The inner ring is tightly mounted on the journal and rotates with the shaft, while the outer ring is installed in the bearing housing hole. Raceways are formed on the outer periphery of the inner ring and the inner periphery of the outer ring. When the inner ring and the outer ring are relatively rotated, the stamping body is pressed on the raceways of the inner ring and the outer ring, and they are separated by the cage to avoid mutual friction.
Thrust bearing is divided into two parts: tight ring and movable ring. The tight ring and sleeve are tight and the ring is supported on the bearing housing. Ferrules and stamped parts are usually made of stamped bearing steel and have high strength and good wear resistance. The surface hardness after quenching should reach HRC60-65. The cage is made of soft steel stamping, or it can be made of copper alloy cloth bakelite or plastic.
The differences between stamped and plain bearings are first expressed in the structure. A stamped bearing supports a rotary shaft by the rotation of a stamped body. Therefore, the contact part is the focus. The more stamped bodies, the more contact points. The plain bearing supports the rotating shaft through a smooth surface so that the contact portion is one surface. Secondly, the way of exercise is different. Stamped bearings move by stamping. Sliding bearings move in a sliding manner, so the form of friction is completely different.