The invention discloses a bearing capable of dissipating heat, relating to the field of produced parts of industrial machinery. The bearing comprises bearing outer rings and bearing inner rings, wherein rolling bodies are arranged between the bearing inner rings and the corresponding bearing outer rings; one side, close to the rolling bodies, of each bearing outer ring is of a concave surface shape, one side, close to the rolling bodies, of each bearing inner ring is of a concave surface shape, the concave surfaces of each bearing outer ring and the corresponding bearing inner ring form an arc surface, and each arc surface is connected with the rolling bodies; a fixed frame is arranged among the rolling bodies, sealing rings are arranged between the bearing outer rings and the corresponding bearing inner rings, the thicknesses of the sealing rings are 30mm-100mm, and the sealing rings are used for isolating the rolling bodies from the outside; compression plates are arranged outside the sealing rings, and heat-dissipation oil layers are arranged between the compression plates and the sealing rings. The bearing capable of dissipating the heat is simple in structure, reliable in rotation performance, low in rotation noise, good in heat-dissipation performance, wide in application rang and low in cost and can work in a high-speed running environment.