Pump bearings belong to non - standard shaft bearings.The shaft connecting bearing is a double supporting bearing with simplified structure. The two supporting bearings have no inner ring and the raceway of the rolling body is directly on the shaft. The outer ring of the two supporting bearings is made into a whole.

Under the same condition of bearing capacity, its radial dimension is smaller than that of general type bearing.When the radial dimensions are the same, the bearing capacity is greater than that of general type bearings.Due to good rigidity, good rotation, simple structure, convenient assembly and disassembly, in the automobile pump, textile machinery, aerospace and other industries widely used.