GEAR PUMP

PROBLEM TO BE SOLVED: To provide a gear pump enabling lubrication with respect to bush bearings at the time of operation of the gear pump, simplifying assembling work by easily performing press fitting of a bush with respect to a bearing main body in the bush bearing, and capable of reducing manufacturing costs by realizing reduction in portions to be processed. SOLUTION: A driven gear 15 provided in a driven shaft 16 and a drive gear 17 provided in a drive shaft 18 are engaged with each other, and the both gears 15, 17 are rotatably stored in an eyeglasses-shaped gear storage part 12 inside a pump body 11 via the bush bearings 19 to 22. Covers 23, 24 covering the gear storage part 12 are fitted to the pump body 11. The bush bearing 19 comprises the bearing main body 28 and the bush 29. A fluid passage communicating the gear storage part 12 with an inside face 23a of the cover 23 is formed, and recessed parts 23e communicating fluid passing through the fluid passage with a bearing face 29a of the bush 29 are formed in the inside face 23a of the cover 23. COPYRIGHT: (C)2005,JPO&NCIPI