Vertical sliding bearing

The invention relates to a vertical sliding bearing. The vertical sliding bearing comprises an oil tank, a thrust bearing and a thrust block which are arranged at the outer part of an oil retaining barrel in a sleeving manner and arranged on a base in sequence from bottom to top, a guide bearing seat, a radial bearing and an oil-water cooler, wherein the lubricating oil enters the oil-water coolervia a first cooling oil circuit along the radial direction of the vertical sliding bearing and then flows through every two adjacent cooling channels in sequence. According to the vertical sliding bearing, through the design of the internal oil circuit, the internal circulating lubricating oil can flow into the oil-water cooler in order, and the heat dissipation efficiency of the oil-water cooleris increased; meanwhile, the oil-water cooler is encapsulated, the oil-water cooler is configured in a manner that a plurality of cooling channels communicating with each other in sequence are arranged in the oil-water cooler