Submerged pump bearing box

The utility model provides a submerged pump bearing box, contain the bearing bracket and the axle, the bearing bracket lower extreme take over its characterized in that in the middle of being connected with: the bearing bracket on lower extreme and the coupling department of touching be provided with oil blanket B, the bearing bracket lower extreme has compressed tightly the cylindrical roller bearing through lower bearing cover and has passed the axle, lower bearing cover in from lower supreme oil blanket A and the magnetic force oil blanket of having set gradually, bearing bracket upper endcompressed tightly angular contact ball bearing through last bearing cover. The utility model discloses compare and have following advantage in prior art: extended shaft bolster as an organic whole was constituteed to the cylinder of I shape cylinder and lower extreme on the bearing bracket setting was served as reasons, and the span is long, the lower extreme bearing portion extends to below thebottom plate to pump boom