The role of the pump shaft is to support the impeller and other rotating parts, driven impeller at a certain working position for high-speed rotation and transfer drive power components. Centrifugal pump shaft at work for a certain rotational speed for rotation, to withstand greater bending moment and torque. The shaft has sufficient strength and geometric accuracy to minimize the adverse effects on sealing performance, minimizing the risk of wear and bruising. Centrifugal thrust bearings have rolling bearings and plain bearings two categories. 1, of which one-way thrust ball bearings rolling bearings, thrust ball bearings, thrust cylindrical thrust roller bearings, thrust tapered roller bearings, etc., angular contact bearings also can withstand axial load. 2, thrust sliding bearings solid, single-ring, hollow, multi-ring and other fixed thrust bearings and tilting fan thrust bearings. Bearing lining materials are cast iron, Babbitt, copper alloy, aluminum, ceramic and non-metallic materials.
