PUMP BEARING STRUCTURE AND PUMP DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a pump bearing structure and a pump device eliminating any possibility of deviation of a bearing shell from a shock absorbing rubber, even if a load larger than a designed load is applied to a pump shaft. SOLUTION: This pump bearing structure is so formed that the cylindrical bearing shell 21 is installed in a through-hole 17 provided in the center of a bearing casing 13 via the cylindrical shock absorbing rubber 19 and a cylindrical bearing 25 rotatably supporting the pump shaft 50 is fixed to the inside of the bearing shell 21. The shock absorbing rubber 19 is vulcanized and stuck to both of the bearing casing 13 in an external circumferential side and the bearing shell 21 in an internal circumferential side.