Vertical type pump ceramic bearing

The utility model discloses a ceramic bearing of a vertical type pump, which comprises a bearing body (1) and a shaft sleeve (6), a rubber buffer body (2) is pressed in an inner hole of the bearing body (1), a protective sleeve (3) is fixed in the inner circle of the rubber buffer body (2), ceramic (4) is pasted in the inner hole of the protective sleeve (3), an arc groove (9) which is used for impurity and lubrication water to pass through is arranged in the ceramic (4) inner hole, hard alloy is sprayed on the outer circle of the shaft sleeve (6), and the outer circle of the shaft sleeve is arranged in the inner circle of the ceramic (4). The ceramic bearing of a vertical type pump of the utility model is wear resistant, a water pump can be started in dry state, pumped mediums can be used to directly cool and lubricate during operation, and the ceramic bearing which is used to convey mediums containing particles is reliable in operation, and has wide popularization value.